- published: 26 Nov 2014
- views: 4
Create your page here
back to playlist
Optibase
Carrier grade h.264 MPEG encoder. Best price performance.
Redundancy for encoders, power supply, network
Hot swappable
Single interface for multiple channels and multiple chassis's
- published: 29 Dec 2009
- views: 2233
Live performance of the brilliant jazz pianist Daniel Kramer at the Munich Piano Festival (Münchner Klaviersommer) 1997. Recorded by Philips for a Demo DVD (one of the first DVDs ever) as demonstration for MPEG Multichannel audio.
MPEG Multichannel hasn't succeeded as a widespread surround audio format. Instead, Dolby Digital (AC3) is the format widely used nowadays. MPEG Multichannel is only mandatory for European DVD players, and most players only decode it back to (stereo) PCM for digital S/PDIF output, as virtually no Home Theater Receiver can decode it.
Only a very small number of those demo discs were pressed and distributed by Philips, Eindhoven, and this wonderful performance of Daniel Kramer remained unbroadcast and undistributed since, which is a pity. With this upload, I want to preserve this recording and make it available to a larger audience for the pleasure of all of you. Watch out for the second piece in which Daniel Kramer over a long time only uses the left hand and plays it with virtuosity. Great!
Daniel Kramer (Daniil Kramer, Даниил Крамер) was born in 1960 in Kharkov, Ukraine and is a professor for Jazz Piano at Moscow National Conservatory today.
Have fun!
- published: 02 Apr 2013
- views: 7915
TO USE OR PRINT this presentation click : http://videosliders.com/r/422
==============================================================
MPEG-21 bitstream syntax description for scalable video codecs Chris Poppe Sam Lerouge Wesley De Neve Rik Van de Walle Davy De Schrijver Sravanthi Kolloju 2444637
,Introduction Cell phones and PDA s are capable of running video files
But both of them have dissimilar characteristics in terms of memory processing power and bandwidth. So for every device there is need of using different bitstream for video broadcast. ,Main Idea Multichannel Publication Environment.
MPEG-21 Bitstream Syntax Description language (BSDL). Creates high-level XML description of the structure of the bitstream. ,Bitstream Syntax description language(BSDL) MPEG-21 is build around one central concept called
“Digital Item (DI)” BSDL belongs Digital Item Adaptation (DIA) DIA consists of several tools like Bitstream Syntax Description (BSD)
Bitstream Schema ,Related Work Another language used for multimedia representation is FLAVOR (Formal Language for Audio-Visual Object Representation.
FLAVOR code describes structure of a bit stream and this code can in turn be translated into C++ or Java. FLAVOR which supports XML features is known as XFLAVOR. MPEG video mark up language is a description language that has the same functionality of XFLAVOR . ,Scalable video coding There are different types of video coding used for different applications Fully scalable video coding MC-EZBC: This coding consists of all the information of original video stream.
Temporal scalability: Is used to achieve a video with lower frame rate. Spatial scalability : Is used to achieve a video with lower resolution. SNR scalability : Is used to achieve lower bitrate ,Fully Scalable Video Coding In this picture decomposition is done by dividing in to
low frequency frames and high frequency frames. ,Structure of a MC-EZBC bitstream The header consists of general information about the bitstream.
The general bitstream consists of header and payload. Payload contains sizes of GOPs following the actual GOPs structure. ,Bitstream to XML Based on the bitstream BS Schema is generated.
The corresponding XML code is created by making use of BintoBsd and BSSchema. <?xml version=“1.0”>
<Bitstream namespace> +<header> +<NUMBER_GOPs> +<GOPSIZE> +<GOP> +<GOP> . . </Bitstream> ,Adaptation of Temporal Scalability By using temporal scalability a video with a lower frame
rate is obtained. The lower frame rate is obtained by eliminating eight high frequency frames in fully scalable video coding. H frames can be eliminated by removing the highest content tag in each GOP tag. ,SpatialScalability A lower resolution video frame is obtained by using Spatial Scalability.
This is obtained by eliminating highest subbands of each substream. SNR Scalability A bitstream with a lower bit rate is generated with SNR
Scalability. The encoding process in SNR scalability delivers a compressed bit stream and also a file containing information about the bit planes of different subbands. ,Conclusion Coding format-independent adaptation frame work for binary media resources is discussed.
To evaluate the performance of the BSDL framework, bitstreams encoded by two different coding schemata were discussed. Various scalability methods are achieved by adaptive XML. ,References Vetro, A., Christopoulos, C., Ebrahimi, T.: From the guest editors
– Universal multimedia access. IEEE Signal Process. Mag. 20(2), 16 (2003) ISO/IEC 21000-7:2004: Information technology—multimedia framework (MPEG-21)—Part 7: Digital Item Adaptation (2004) Mukherjee, D., Wang, H., Said, A., Liu, S.: Format-Agnostic adaptation using the MPEG-21 DIA framework. In: Proceedings of SPIE Annual Meeting 2004: Signal and Image Processing and Sensors. Denver, vol. 5558, pp. 351–362 (2004) Devillers, S., Timmerer, C., Heuer, J., Hellwagner, H.: Bitstream
- published: 16 May 2016
- views: 10
inspiration, motivation, success, self-help, happiness, energy, positive, mindset, psychology
- published: 29 Dec 2014
- views: 2
Promoting institutional release on Sustainable Development 4th Economic Sector World Model
- published: 04 Jan 2010
- views: 1418
Convert AVCHD to MPEG-1 Video file format in Windows10 11 Computer, Best software to Convert AVCHD Video to MPEG-1 Video Format. http://www.EasiestSoft.com/converter.exe
How to Convert AVCHD to MPEG-1 Format on Microsoft Windows PC, AVCHD format is a format for the recording and playback of high definition video, Developed jointly by Sony and Panasonic. AVCHD Video uses the MPEG-4 AVC/H.264 standard, , it supports both Dolby AC-3 (Dolby Digital) and uncompressed linear PCM audio. Stereo and multichannel surround (5.1) are both supported.
Steps:
1. Download Win 8 AVCHD format to MPEG-1 video Converter from link below Now:
http://www.EasiestSoft.com/converter.exe
2. Add AVCHD video to the Converter for Win 8
Just Drag your AVCHD files or AVCHD folder to converter to add them.
You can also click the Add Files button in the top-left corner of the interface or in this left pane. Then, you have chance to browse your computer and select your wanted AVCHD videos to load.
3. Choose Output Format you want
Click the "Output Format" drop-down list. When you open its output format list, you can choose "Common Video", "MPEG-1 Video".
4. (Optional) Output Settings
5. Start Microsoft Win 8 AVCHD movie to MPEG-1 format conversion
Now, you can start to convert Windows 8 AVCHD codec to MPEG-1 codec. To do it, just click the "Start" button in the lower-right corner of this app.
6. Open Output
When its done, click the Open Output to find the converted AVCHD media files.
Don't forget to check out latest version of AVCHD to MPEG-1 Converter for Windows at:
http://www.easiestsoft.com/products/video-converter-for-windows/
- published: 04 Sep 2013
- views: 984
Don't hesitate to comment below if you have any questions or additional phrases
18-493 Electroacoustics Coding of Sound for Multimedia Applications (making liberal use of material compiled by Prof. Tsuhan Chen) Richard Stern rms@cs.cmu.edu
,MPEG Audio
,Outline Basics
Elements of psychoacoustics
Digitization of signals Subband coding MPEG-1 audio Layers I, II, and III
Frame structure and packetization MPEG-2 audio Multichannel audio
Compatibility issues 18-796/Spring 1999/Chen
,Psychoacoustics Threshold in quiet
26 critical bands 0~24 kHz Frequency masking in the same critical band 18-796/Spring 1999/Chen
,Frequency Masking SMR (Signal-to-Mask Ratio) Masking by bands of 1000, 250, and 10 Hz: 18-796/Spring 1999/Chen
,Temporal Masking Pre-Masking: 1/10 of post-masking
Post-Masking: 50~200ms Backward and Forward Masking (gaps of 100, 20, 0 ms): 18-796/Spring 1999/Chen
,The Sampling Theorem Nyquist theorem: If the signal is sampled with a frequency that is at least twice the maximum frequency of the incoming speech, we can recover the original waveform by lowpass filtering. With lower sampling frequencies, aliasing will occur, which produces distortion from which the original signal cannot be recovered.
Recovered sound wave Sound wave LOWPASS FILTER Sampling pulse train 18-796/Spring 1999/Chen
,Sampling of Continuous Sounds Comment: Sampling introduces quantization
18-796/Spring 1999/Chen
,Effects of Undersampling Undersampling at 10 kHz:
18-796/Spring 1999/Chen
,Effects of Quantization 16-bit representation
12-bit representation 8-bit representation 4-bit representation 18-796/Spring 1999/Chen
,Digital Audio CD: 44.1 kHz × 16 bits × 2 channels = 1.411 Mbits/s
18-796/Spring 1999/Chen
,Subband Coding Maximal downsampling
Q should be based on signal-to-masking ratio (SMR) Ear’s critical bands are not uniform, but logarithmic The filter bank should match the critical bands
Q Q Q Analysis Filterbank Synthesis Filterbank 18-796/Spring 1999/Chen
,MPEG-1 Audio ISO/IEC 11172-3 (1988~1991)
First high quality audio compression standard
Sampling rates: 32, 44.1, 48 kHz CD quality two-channel audio at ~256 kbits/s CD: 44.1 kHz × 16 bits × 2 = 1.411 Mbits/s
Quality demonstration (MPEG-1 Layer II) Stereo 44.1 kHz at 64 kbits/s Stereo 44.1 kHz at 128 kbits/s Stereo 44.1 kHz at 192 kbits/s Stereo 44.1 kHz at 256 kbits/s 18-796/Spring 1999/Chen
,Codec Block Diagram 18-796/Spring 1999/Chen
,Layers Increasing complexity, delay, and quality
Layer I: ~384 kbits/s for perceptually lossless quality (4:1)
Layer II: ~192 kbits/s for perceptually lossless quality (8:1) Layer III: ~128 kbits/s for perceptually lossless quality (12:1) (for two channels) 100% perceptual lossless 18-796/Spring 1999/Chen
,Layer I and II Encoder 32 Scaler & Quantizer Analysis Filterbank Mux 512-tap Dynamic Bit Allocator Coder Masking Threshold Generator FFT 512-pt for Layer I 1024-pt for Layer II/III 18-796/Spring 1999/Chen
,Layer III Encoder 6 or 18 with overlap Scaler & Quantizer Huffman Coding Analysis Filterbank MDCT Mux Coding Masking Threshold Generator FFT Freq Resolution = 24kHz / (3218) = 41.67Hz 18-796/Spring 1999/Chen
,Features in Layer III Hybrid filterbank
MDCT with filterbank
Long/short window switching Short for better temporal resolution (to prevent pre-echoes)
Long for better frequency resolution Nonuniform quantization Entropy coding Run-length and Huffman coding
Bit reservoir (buffer) VBR CBR 18-796/Spring 1999/Chen
,Stereo Redundancy Coding Four modes: mono, stereo, dual with two separate channel, joint stereo
Joint stereo mode Human stereo perception > 2kHz is based on envelope
Intensity stereo coding > 2kHz Encode (L + R)
Assign independent left- and right- scalefactors Layer III supports (L+R) and (L–R) coding 18-796/Spring 1999/Chen
,MPEG-2 Audio ISO/IEC 13818-3
Allows lower sampling rates
16, 22.05, and 24 kHz: about half of MPEG-1
From wideband speech to mediumband audio Higher frequency resolution Layer I, II, and III Multichann
- published: 02 Jun 2016
- views: 5
- Loading...
-
0:31MASTER multichannel 30 MPEG 4HD
MASTER multichannel 30 MPEG 4HD -
0:51MASTER multichannel 50 MPEG 4HD
MASTER multichannel 50 MPEG 4HD -
4:00h.264 Encoder - Multi-channel Encoder
h.264 Encoder - Multi-channel Encoderh.264 Encoder - Multi-channel Encoder
Optibase Carrier grade h.264 MPEG encoder. Best price performance. Redundancy for encoders, power supply, network Hot swappable Single interface for multiple channels and multiple chassis's -
15:19Daniel Kramer at Munich Piano Festival 1997 / Daniel Kramer beim Münchner Klaviersommer 1997
Daniel Kramer at Munich Piano Festival 1997 / Daniel Kramer beim Münchner Klaviersommer 1997Daniel Kramer at Munich Piano Festival 1997 / Daniel Kramer beim Münchner Klaviersommer 1997
Live performance of the brilliant jazz pianist Daniel Kramer at the Munich Piano Festival (Münchner Klaviersommer) 1997. Recorded by Philips for a Demo DVD (one of the first DVDs ever) as demonstration for MPEG Multichannel audio. MPEG Multichannel hasn't succeeded as a widespread surround audio format. Instead, Dolby Digital (AC3) is the format widely used nowadays. MPEG Multichannel is only mandatory for European DVD players, and most players only decode it back to (stereo) PCM for digital S/PDIF output, as virtually no Home Theater Receiver can decode it. Only a very small number of those demo discs were pressed and distributed by Philips, Eindhoven, and this wonderful performance of Daniel Kramer remained unbroadcast and undistributed since, which is a pity. With this upload, I want to preserve this recording and make it available to a larger audience for the pleasure of all of you. Watch out for the second piece in which Daniel Kramer over a long time only uses the left hand and plays it with virtuosity. Great! Daniel Kramer (Daniil Kramer, Даниил Крамер) was born in 1960 in Kharkov, Ukraine and is a professor for Jazz Piano at Moscow National Conservatory today. Have fun! -
3:16MPEG-21 bitstream syntax description for scalable video codecs
MPEG-21 bitstream syntax description for scalable video codecsMPEG-21 bitstream syntax description for scalable video codecs
TO USE OR PRINT this presentation click : http://videosliders.com/r/422 ============================================================== MPEG-21 bitstream syntax description for scalable video codecs Chris Poppe Sam Lerouge Wesley De Neve Rik Van de Walle Davy De Schrijver Sravanthi Kolloju 2444637 ,Introduction Cell phones and PDA s are capable of running video files But both of them have dissimilar characteristics in terms of memory processing power and bandwidth. So for every device there is need of using different bitstream for video broadcast. ,Main Idea Multichannel Publication Environment. MPEG-21 Bitstream Syntax Description language (BSDL). Creates high-level XML description of the structure of the bitstream. ,Bitstream Syntax description language(BSDL) MPEG-21 is build around one central concept called “Digital Item (DI)” BSDL belongs Digital Item Adaptation (DIA) DIA consists of several tools like Bitstream Syntax Description (BSD) Bitstream Schema ,Related Work Another language used for multimedia representation is FLAVOR (Formal Language for Audio-Visual Object Representation. FLAVOR code describes structure of a bit stream and this code can in turn be translated into C++ or Java. FLAVOR which supports XML features is known as XFLAVOR. MPEG video mark up language is a description language that has the same functionality of XFLAVOR . ,Scalable video coding There are different types of video coding used for different applications Fully scalable video coding MC-EZBC: This coding consists of all the information of original video stream. Temporal scalability: Is used to achieve a video with lower frame rate. Spatial scalability : Is used to achieve a video with lower resolution. SNR scalability : Is used to achieve lower bitrate ,Fully Scalable Video Coding In this picture decomposition is done by dividing in to low frequency frames and high frequency frames. ,Structure of a MC-EZBC bitstream The header consists of general information about the bitstream. The general bitstream consists of header and payload. Payload contains sizes of GOPs following the actual GOPs structure. ,Bitstream to XML Based on the bitstream BS Schema is generated. The corresponding XML code is created by making use of BintoBsd and BSSchema. <?xml version=“1.0”> <Bitstream namespace> +<header> +<NUMBER_GOPs> +<GOPSIZE> +<GOP> +<GOP> . . </Bitstream> ,Adaptation of Temporal Scalability By using temporal scalability a video with a lower frame rate is obtained. The lower frame rate is obtained by eliminating eight high frequency frames in fully scalable video coding. H frames can be eliminated by removing the highest content tag in each GOP tag. ,SpatialScalability A lower resolution video frame is obtained by using Spatial Scalability. This is obtained by eliminating highest subbands of each substream. SNR Scalability A bitstream with a lower bit rate is generated with SNR Scalability. The encoding process in SNR scalability delivers a compressed bit stream and also a file containing information about the bit planes of different subbands. ,Conclusion Coding format-independent adaptation frame work for binary media resources is discussed. To evaluate the performance of the BSDL framework, bitstreams encoded by two different coding schemata were discussed. Various scalability methods are achieved by adaptive XML. ,References Vetro, A., Christopoulos, C., Ebrahimi, T.: From the guest editors – Universal multimedia access. IEEE Signal Process. Mag. 20(2), 16 (2003) ISO/IEC 21000-7:2004: Information technology—multimedia framework (MPEG-21)—Part 7: Digital Item Adaptation (2004) Mukherjee, D., Wang, H., Said, A., Liu, S.: Format-Agnostic adaptation using the MPEG-21 DIA framework. In: Proceedings of SPIE Annual Meeting 2004: Signal and Image Processing and Sensors. Denver, vol. 5558, pp. 351–362 (2004) Devillers, S., Timmerer, C., Heuer, J., Hellwagner, H.: Bitstream -
3:41Whale An Interactive, Multichannel Sound Installation, Where One Experiences Oneself.mp4
Whale An Interactive, Multichannel Sound Installation, Where One Experiences Oneself.mp4Whale An Interactive, Multichannel Sound Installation, Where One Experiences Oneself.mp4
inspiration, motivation, success, self-help, happiness, energy, positive, mindset, psychology -
3:01SDWM-4ECOSECORG-MMDS-16-9.mp4
SDWM-4ECOSECORG-MMDS-16-9.mp4SDWM-4ECOSECORG-MMDS-16-9.mp4
Promoting institutional release on Sustainable Development 4th Economic Sector World Model -
3:20Video tutorial of How to Converting AVCHD Video to MPEG-1 Format
Video tutorial of How to Converting AVCHD Video to MPEG-1 FormatVideo tutorial of How to Converting AVCHD Video to MPEG-1 Format
Convert AVCHD to MPEG-1 Video file format in Windows10 11 Computer, Best software to Convert AVCHD Video to MPEG-1 Video Format. http://www.EasiestSoft.com/converter.exe How to Convert AVCHD to MPEG-1 Format on Microsoft Windows PC, AVCHD format is a format for the recording and playback of high definition video, Developed jointly by Sony and Panasonic. AVCHD Video uses the MPEG-4 AVC/H.264 standard, , it supports both Dolby AC-3 (Dolby Digital) and uncompressed linear PCM audio. Stereo and multichannel surround (5.1) are both supported. Steps: 1. Download Win 8 AVCHD format to MPEG-1 video Converter from link below Now: http://www.EasiestSoft.com/converter.exe 2. Add AVCHD video to the Converter for Win 8 Just Drag your AVCHD files or AVCHD folder to converter to add them. You can also click the Add Files button in the top-left corner of the interface or in this left pane. Then, you have chance to browse your computer and select your wanted AVCHD videos to load. 3. Choose Output Format you want Click the "Output Format" drop-down list. When you open its output format list, you can choose "Common Video", "MPEG-1 Video". 4. (Optional) Output Settings 5. Start Microsoft Win 8 AVCHD movie to MPEG-1 format conversion Now, you can start to convert Windows 8 AVCHD codec to MPEG-1 codec. To do it, just click the "Start" button in the lower-right corner of this app. 6. Open Output When its done, click the Open Output to find the converted AVCHD media files. Don't forget to check out latest version of AVCHD to MPEG-1 Converter for Windows at: http://www.easiestsoft.com/products/video-converter-for-windows/ -
5:4618-493 Electroacoustics
18-493 Electroacoustics18-493 Electroacoustics
Don't hesitate to comment below if you have any questions or additional phrases 18-493 Electroacoustics Coding of Sound for Multimedia Applications (making liberal use of material compiled by Prof. Tsuhan Chen) Richard Stern rms@cs.cmu.edu ,MPEG Audio ,Outline Basics Elements of psychoacoustics Digitization of signals Subband coding MPEG-1 audio Layers I, II, and III Frame structure and packetization MPEG-2 audio Multichannel audio Compatibility issues 18-796/Spring 1999/Chen ,Psychoacoustics Threshold in quiet 26 critical bands 0~24 kHz Frequency masking in the same critical band 18-796/Spring 1999/Chen ,Frequency Masking SMR (Signal-to-Mask Ratio) Masking by bands of 1000, 250, and 10 Hz: 18-796/Spring 1999/Chen ,Temporal Masking Pre-Masking: 1/10 of post-masking Post-Masking: 50~200ms Backward and Forward Masking (gaps of 100, 20, 0 ms): 18-796/Spring 1999/Chen ,The Sampling Theorem Nyquist theorem: If the signal is sampled with a frequency that is at least twice the maximum frequency of the incoming speech, we can recover the original waveform by lowpass filtering. With lower sampling frequencies, aliasing will occur, which produces distortion from which the original signal cannot be recovered. Recovered sound wave Sound wave LOWPASS FILTER Sampling pulse train 18-796/Spring 1999/Chen ,Sampling of Continuous Sounds Comment: Sampling introduces quantization 18-796/Spring 1999/Chen ,Effects of Undersampling Undersampling at 10 kHz: 18-796/Spring 1999/Chen ,Effects of Quantization 16-bit representation 12-bit representation 8-bit representation 4-bit representation 18-796/Spring 1999/Chen ,Digital Audio CD: 44.1 kHz × 16 bits × 2 channels = 1.411 Mbits/s 18-796/Spring 1999/Chen ,Subband Coding Maximal downsampling Q should be based on signal-to-masking ratio (SMR) Ear’s critical bands are not uniform, but logarithmic The filter bank should match the critical bands Q Q Q Analysis Filterbank Synthesis Filterbank 18-796/Spring 1999/Chen ,MPEG-1 Audio ISO/IEC 11172-3 (1988~1991) First high quality audio compression standard Sampling rates: 32, 44.1, 48 kHz CD quality two-channel audio at ~256 kbits/s CD: 44.1 kHz × 16 bits × 2 = 1.411 Mbits/s Quality demonstration (MPEG-1 Layer II) Stereo 44.1 kHz at 64 kbits/s Stereo 44.1 kHz at 128 kbits/s Stereo 44.1 kHz at 192 kbits/s Stereo 44.1 kHz at 256 kbits/s 18-796/Spring 1999/Chen ,Codec Block Diagram 18-796/Spring 1999/Chen ,Layers Increasing complexity, delay, and quality Layer I: ~384 kbits/s for perceptually lossless quality (4:1) Layer II: ~192 kbits/s for perceptually lossless quality (8:1) Layer III: ~128 kbits/s for perceptually lossless quality (12:1) (for two channels) 100% perceptual lossless 18-796/Spring 1999/Chen ,Layer I and II Encoder 32 Scaler & Quantizer Analysis Filterbank Mux 512-tap Dynamic Bit Allocator Coder Masking Threshold Generator FFT 512-pt for Layer I 1024-pt for Layer II/III 18-796/Spring 1999/Chen ,Layer III Encoder 6 or 18 with overlap Scaler & Quantizer Huffman Coding Analysis Filterbank MDCT Mux Coding Masking Threshold Generator FFT Freq Resolution = 24kHz / (3218) = 41.67Hz 18-796/Spring 1999/Chen ,Features in Layer III Hybrid filterbank MDCT with filterbank Long/short window switching Short for better temporal resolution (to prevent pre-echoes) Long for better frequency resolution Nonuniform quantization Entropy coding Run-length and Huffman coding Bit reservoir (buffer) VBR CBR 18-796/Spring 1999/Chen ,Stereo Redundancy Coding Four modes: mono, stereo, dual with two separate channel, joint stereo Joint stereo mode Human stereo perception > 2kHz is based on envelope Intensity stereo coding > 2kHz Encode (L + R) Assign independent left- and right- scalefactors Layer III supports (L+R) and (L–R) coding 18-796/Spring 1999/Chen ,MPEG-2 Audio ISO/IEC 13818-3 Allows lower sampling rates 16, 22.05, and 24 kHz: about half of MPEG-1 From wideband speech to mediumband audio Higher frequency resolution Layer I, II, and III Multichann -
4:00mgMEDIA.mp4
mgMEDIA.mp4
-
-
-
h.264 Encoder - Multi-channel Encoder
Optibase Carrier grade h.264 MPEG encoder. Best price performance. Redundancy for encoders, power supply, network Hot swappable Single interface for multiple channels and multiple chassis's -
Daniel Kramer at Munich Piano Festival 1997 / Daniel Kramer beim Münchner Klaviersommer 1997
Live performance of the brilliant jazz pianist Daniel Kramer at the Munich Piano Festival (Münchner Klaviersommer) 1997. Recorded by Philips for a Demo DVD (one of the first DVDs ever) as demonstration for MPEG Multichannel audio. MPEG Multichannel hasn't succeeded as a widespread surround audio format. Instead, Dolby Digital (AC3) is the format widely used nowadays. MPEG Multichannel is only mandatory for European DVD players, and most players only decode it back to (stereo) PCM for digital S/PDIF output, as virtually no Home Theater Receiver can decode it. Only a very small number of those demo discs were pressed and distributed by Philips, Eindhoven, and this wonderful performance of Daniel Kramer remained unbroadcast and undistributed since, which is a pity. With this upload, I want ... -
MPEG-21 bitstream syntax description for scalable video codecs
TO USE OR PRINT this presentation click : http://videosliders.com/r/422 ============================================================== MPEG-21 bitstream syntax description for scalable video codecs Chris Poppe Sam Lerouge Wesley De Neve Rik Van de Walle Davy De Schrijver Sravanthi Kolloju 2444637 ,Introduction Cell phones and PDA s are capable of running video files But both of them have dissimilar characteristics in terms of memory processing power and bandwidth. So for every device there is need of using different bitstream for video broadcast. ,Main Idea Multichannel Publication Environment. MPEG-21 Bitstream Syntax Description language (BSDL). Creates high-level XML description of the structure of the bitstream. ,Bitstream Syntax description language(BSDL) MPEG-21 is build... -
Whale An Interactive, Multichannel Sound Installation, Where One Experiences Oneself.mp4
inspiration, motivation, success, self-help, happiness, energy, positive, mindset, psychology -
SDWM-4ECOSECORG-MMDS-16-9.mp4
Promoting institutional release on Sustainable Development 4th Economic Sector World Model -
Video tutorial of How to Converting AVCHD Video to MPEG-1 Format
Convert AVCHD to MPEG-1 Video file format in Windows10 11 Computer, Best software to Convert AVCHD Video to MPEG-1 Video Format. http://www.EasiestSoft.com/converter.exe How to Convert AVCHD to MPEG-1 Format on Microsoft Windows PC, AVCHD format is a format for the recording and playback of high definition video, Developed jointly by Sony and Panasonic. AVCHD Video uses the MPEG-4 AVC/H.264 standard, , it supports both Dolby AC-3 (Dolby Digital) and uncompressed linear PCM audio. Stereo and multichannel surround (5.1) are both supported. Steps: 1. Download Win 8 AVCHD format to MPEG-1 video Converter from link below Now: http://www.EasiestSoft.com/converter.exe 2. Add AVCHD video to the Converter for Win 8 Just Drag your AVCHD files or AVCHD folder to converter to add them. You can als... -
18-493 Electroacoustics
Don't hesitate to comment below if you have any questions or additional phrases 18-493 Electroacoustics Coding of Sound for Multimedia Applications (making liberal use of material compiled by Prof. Tsuhan Chen) Richard Stern rms@cs.cmu.edu ,MPEG Audio ,Outline Basics Elements of psychoacoustics Digitization of signals Subband coding MPEG-1 audio Layers I, II, and III Frame structure and packetization MPEG-2 audio Multichannel audio Compatibility issues 18-796/Spring 1999/Chen ,Psychoacoustics Threshold in quiet 26 critical bands 0~24 kHz Frequency masking in the same critical band 18-796/Spring 1999/Chen ,Frequency Masking SMR (Signal-to-Mask Ratio) Masking by bands of 1000, 250, and 10 Hz: 18-796/Spring 1999/Chen ,Temporal Masking Pre-Masking: 1/10 of post-masking Post-Maskin... -
MASTER multichannel 30 MPEG 4HD
- Order: Reorder
- Duration: 0:31
- Updated: 26 Nov 2014
- views: 4
MASTER multichannel 50 MPEG 4HD
- Order: Reorder
- Duration: 0:51
- Updated: 25 Nov 2014
- views: 7
h.264 Encoder - Multi-channel Encoder
- Order: Reorder
- Duration: 4:00
- Updated: 29 Dec 2009
- views: 2233
Optibase
Carrier grade h.264 MPEG encoder. Best price performance.
Redundancy for encoders, power supply, network
Hot swappable
Single interface for multi...
Optibase
Carrier grade h.264 MPEG encoder. Best price performance.
Redundancy for encoders, power supply, network
Hot swappable
Single interface for multiple channels and multiple chassis's
wn.com/H.264 Encoder Multi Channel Encoder
Optibase
Carrier grade h.264 MPEG encoder. Best price performance.
Redundancy for encoders, power supply, network
Hot swappable
Single interface for multiple channels and multiple chassis's
- published: 29 Dec 2009
- views: 2233
Daniel Kramer at Munich Piano Festival 1997 / Daniel Kramer beim Münchner Klaviersommer 1997
- Order: Reorder
- Duration: 15:19
- Updated: 02 Apr 2013
- views: 7915
Live performance of the brilliant jazz pianist Daniel Kramer at the Munich Piano Festival (Münchner Klaviersommer) 1997. Recorded by Philips for a Demo DVD (one...
Live performance of the brilliant jazz pianist Daniel Kramer at the Munich Piano Festival (Münchner Klaviersommer) 1997. Recorded by Philips for a Demo DVD (one of the first DVDs ever) as demonstration for MPEG Multichannel audio.
MPEG Multichannel hasn't succeeded as a widespread surround audio format. Instead, Dolby Digital (AC3) is the format widely used nowadays. MPEG Multichannel is only mandatory for European DVD players, and most players only decode it back to (stereo) PCM for digital S/PDIF output, as virtually no Home Theater Receiver can decode it.
Only a very small number of those demo discs were pressed and distributed by Philips, Eindhoven, and this wonderful performance of Daniel Kramer remained unbroadcast and undistributed since, which is a pity. With this upload, I want to preserve this recording and make it available to a larger audience for the pleasure of all of you. Watch out for the second piece in which Daniel Kramer over a long time only uses the left hand and plays it with virtuosity. Great!
Daniel Kramer (Daniil Kramer, Даниил Крамер) was born in 1960 in Kharkov, Ukraine and is a professor for Jazz Piano at Moscow National Conservatory today.
Have fun!
wn.com/Daniel Kramer At Munich Piano Festival 1997 Daniel Kramer Beim Münchner Klaviersommer 1997
Live performance of the brilliant jazz pianist Daniel Kramer at the Munich Piano Festival (Münchner Klaviersommer) 1997. Recorded by Philips for a Demo DVD (one of the first DVDs ever) as demonstration for MPEG Multichannel audio.
MPEG Multichannel hasn't succeeded as a widespread surround audio format. Instead, Dolby Digital (AC3) is the format widely used nowadays. MPEG Multichannel is only mandatory for European DVD players, and most players only decode it back to (stereo) PCM for digital S/PDIF output, as virtually no Home Theater Receiver can decode it.
Only a very small number of those demo discs were pressed and distributed by Philips, Eindhoven, and this wonderful performance of Daniel Kramer remained unbroadcast and undistributed since, which is a pity. With this upload, I want to preserve this recording and make it available to a larger audience for the pleasure of all of you. Watch out for the second piece in which Daniel Kramer over a long time only uses the left hand and plays it with virtuosity. Great!
Daniel Kramer (Daniil Kramer, Даниил Крамер) was born in 1960 in Kharkov, Ukraine and is a professor for Jazz Piano at Moscow National Conservatory today.
Have fun!
- published: 02 Apr 2013
- views: 7915
MPEG-21 bitstream syntax description for scalable video codecs
- Order: Reorder
- Duration: 3:16
- Updated: 16 May 2016
- views: 10
TO USE OR PRINT this presentation click : http://videosliders.com/r/422
==============================================================
MPEG-21 bitstream synta...
TO USE OR PRINT this presentation click : http://videosliders.com/r/422
==============================================================
MPEG-21 bitstream syntax description for scalable video codecs Chris Poppe Sam Lerouge Wesley De Neve Rik Van de Walle Davy De Schrijver Sravanthi Kolloju 2444637
,Introduction Cell phones and PDA s are capable of running video files
But both of them have dissimilar characteristics in terms of memory processing power and bandwidth. So for every device there is need of using different bitstream for video broadcast. ,Main Idea Multichannel Publication Environment.
MPEG-21 Bitstream Syntax Description language (BSDL). Creates high-level XML description of the structure of the bitstream. ,Bitstream Syntax description language(BSDL) MPEG-21 is build around one central concept called
“Digital Item (DI)” BSDL belongs Digital Item Adaptation (DIA) DIA consists of several tools like Bitstream Syntax Description (BSD)
Bitstream Schema ,Related Work Another language used for multimedia representation is FLAVOR (Formal Language for Audio-Visual Object Representation.
FLAVOR code describes structure of a bit stream and this code can in turn be translated into C++ or Java. FLAVOR which supports XML features is known as XFLAVOR. MPEG video mark up language is a description language that has the same functionality of XFLAVOR . ,Scalable video coding There are different types of video coding used for different applications Fully scalable video coding MC-EZBC: This coding consists of all the information of original video stream.
Temporal scalability: Is used to achieve a video with lower frame rate. Spatial scalability : Is used to achieve a video with lower resolution. SNR scalability : Is used to achieve lower bitrate ,Fully Scalable Video Coding In this picture decomposition is done by dividing in to
low frequency frames and high frequency frames. ,Structure of a MC-EZBC bitstream The header consists of general information about the bitstream.
The general bitstream consists of header and payload. Payload contains sizes of GOPs following the actual GOPs structure. ,Bitstream to XML Based on the bitstream BS Schema is generated.
The corresponding XML code is created by making use of BintoBsd and BSSchema. <?xml version=“1.0”>
<Bitstream namespace> +<header> +<NUMBER_GOPs> +<GOPSIZE> +<GOP> +<GOP> . . </Bitstream> ,Adaptation of Temporal Scalability By using temporal scalability a video with a lower frame
rate is obtained. The lower frame rate is obtained by eliminating eight high frequency frames in fully scalable video coding. H frames can be eliminated by removing the highest content tag in each GOP tag. ,SpatialScalability A lower resolution video frame is obtained by using Spatial Scalability.
This is obtained by eliminating highest subbands of each substream. SNR Scalability A bitstream with a lower bit rate is generated with SNR
Scalability. The encoding process in SNR scalability delivers a compressed bit stream and also a file containing information about the bit planes of different subbands. ,Conclusion Coding format-independent adaptation frame work for binary media resources is discussed.
To evaluate the performance of the BSDL framework, bitstreams encoded by two different coding schemata were discussed. Various scalability methods are achieved by adaptive XML. ,References Vetro, A., Christopoulos, C., Ebrahimi, T.: From the guest editors
– Universal multimedia access. IEEE Signal Process. Mag. 20(2), 16 (2003) ISO/IEC 21000-7:2004: Information technology—multimedia framework (MPEG-21)—Part 7: Digital Item Adaptation (2004) Mukherjee, D., Wang, H., Said, A., Liu, S.: Format-Agnostic adaptation using the MPEG-21 DIA framework. In: Proceedings of SPIE Annual Meeting 2004: Signal and Image Processing and Sensors. Denver, vol. 5558, pp. 351–362 (2004) Devillers, S., Timmerer, C., Heuer, J., Hellwagner, H.: Bitstream
wn.com/Mpeg 21 Bitstream Syntax Description For Scalable Video Codecs
TO USE OR PRINT this presentation click : http://videosliders.com/r/422
==============================================================
MPEG-21 bitstream syntax description for scalable video codecs Chris Poppe Sam Lerouge Wesley De Neve Rik Van de Walle Davy De Schrijver Sravanthi Kolloju 2444637
,Introduction Cell phones and PDA s are capable of running video files
But both of them have dissimilar characteristics in terms of memory processing power and bandwidth. So for every device there is need of using different bitstream for video broadcast. ,Main Idea Multichannel Publication Environment.
MPEG-21 Bitstream Syntax Description language (BSDL). Creates high-level XML description of the structure of the bitstream. ,Bitstream Syntax description language(BSDL) MPEG-21 is build around one central concept called
“Digital Item (DI)” BSDL belongs Digital Item Adaptation (DIA) DIA consists of several tools like Bitstream Syntax Description (BSD)
Bitstream Schema ,Related Work Another language used for multimedia representation is FLAVOR (Formal Language for Audio-Visual Object Representation.
FLAVOR code describes structure of a bit stream and this code can in turn be translated into C++ or Java. FLAVOR which supports XML features is known as XFLAVOR. MPEG video mark up language is a description language that has the same functionality of XFLAVOR . ,Scalable video coding There are different types of video coding used for different applications Fully scalable video coding MC-EZBC: This coding consists of all the information of original video stream.
Temporal scalability: Is used to achieve a video with lower frame rate. Spatial scalability : Is used to achieve a video with lower resolution. SNR scalability : Is used to achieve lower bitrate ,Fully Scalable Video Coding In this picture decomposition is done by dividing in to
low frequency frames and high frequency frames. ,Structure of a MC-EZBC bitstream The header consists of general information about the bitstream.
The general bitstream consists of header and payload. Payload contains sizes of GOPs following the actual GOPs structure. ,Bitstream to XML Based on the bitstream BS Schema is generated.
The corresponding XML code is created by making use of BintoBsd and BSSchema. <?xml version=“1.0”>
<Bitstream namespace> +<header> +<NUMBER_GOPs> +<GOPSIZE> +<GOP> +<GOP> . . </Bitstream> ,Adaptation of Temporal Scalability By using temporal scalability a video with a lower frame
rate is obtained. The lower frame rate is obtained by eliminating eight high frequency frames in fully scalable video coding. H frames can be eliminated by removing the highest content tag in each GOP tag. ,SpatialScalability A lower resolution video frame is obtained by using Spatial Scalability.
This is obtained by eliminating highest subbands of each substream. SNR Scalability A bitstream with a lower bit rate is generated with SNR
Scalability. The encoding process in SNR scalability delivers a compressed bit stream and also a file containing information about the bit planes of different subbands. ,Conclusion Coding format-independent adaptation frame work for binary media resources is discussed.
To evaluate the performance of the BSDL framework, bitstreams encoded by two different coding schemata were discussed. Various scalability methods are achieved by adaptive XML. ,References Vetro, A., Christopoulos, C., Ebrahimi, T.: From the guest editors
– Universal multimedia access. IEEE Signal Process. Mag. 20(2), 16 (2003) ISO/IEC 21000-7:2004: Information technology—multimedia framework (MPEG-21)—Part 7: Digital Item Adaptation (2004) Mukherjee, D., Wang, H., Said, A., Liu, S.: Format-Agnostic adaptation using the MPEG-21 DIA framework. In: Proceedings of SPIE Annual Meeting 2004: Signal and Image Processing and Sensors. Denver, vol. 5558, pp. 351–362 (2004) Devillers, S., Timmerer, C., Heuer, J., Hellwagner, H.: Bitstream
- published: 16 May 2016
- views: 10
Whale An Interactive, Multichannel Sound Installation, Where One Experiences Oneself.mp4
- Order: Reorder
- Duration: 3:41
- Updated: 29 Dec 2014
- views: 2
inspiration, motivation, success, self-help, happiness, energy, positive, mindset, psychology
inspiration, motivation, success, self-help, happiness, energy, positive, mindset, psychology
wn.com/Whale An Interactive, Multichannel Sound Installation, Where One Experiences Oneself.Mp4
inspiration, motivation, success, self-help, happiness, energy, positive, mindset, psychology
- published: 29 Dec 2014
- views: 2
SDWM-4ECOSECORG-MMDS-16-9.mp4
- Order: Reorder
- Duration: 3:01
- Updated: 04 Jan 2010
- views: 1418
Promoting institutional release on Sustainable Development 4th Economic Sector World Model
- published: 04 Jan 2010
- views: 1418
Video tutorial of How to Converting AVCHD Video to MPEG-1 Format
- Order: Reorder
- Duration: 3:20
- Updated: 04 Sep 2013
- views: 984
Convert AVCHD to MPEG-1 Video file format in Windows10 11 Computer, Best software to Convert AVCHD Video to MPEG-1 Video Format. http://www.EasiestSoft.com/conv...
Convert AVCHD to MPEG-1 Video file format in Windows10 11 Computer, Best software to Convert AVCHD Video to MPEG-1 Video Format. http://www.EasiestSoft.com/converter.exe
How to Convert AVCHD to MPEG-1 Format on Microsoft Windows PC, AVCHD format is a format for the recording and playback of high definition video, Developed jointly by Sony and Panasonic. AVCHD Video uses the MPEG-4 AVC/H.264 standard, , it supports both Dolby AC-3 (Dolby Digital) and uncompressed linear PCM audio. Stereo and multichannel surround (5.1) are both supported.
Steps:
1. Download Win 8 AVCHD format to MPEG-1 video Converter from link below Now:
http://www.EasiestSoft.com/converter.exe
2. Add AVCHD video to the Converter for Win 8
Just Drag your AVCHD files or AVCHD folder to converter to add them.
You can also click the Add Files button in the top-left corner of the interface or in this left pane. Then, you have chance to browse your computer and select your wanted AVCHD videos to load.
3. Choose Output Format you want
Click the "Output Format" drop-down list. When you open its output format list, you can choose "Common Video", "MPEG-1 Video".
4. (Optional) Output Settings
5. Start Microsoft Win 8 AVCHD movie to MPEG-1 format conversion
Now, you can start to convert Windows 8 AVCHD codec to MPEG-1 codec. To do it, just click the "Start" button in the lower-right corner of this app.
6. Open Output
When its done, click the Open Output to find the converted AVCHD media files.
Don't forget to check out latest version of AVCHD to MPEG-1 Converter for Windows at:
http://www.easiestsoft.com/products/video-converter-for-windows/
wn.com/Video Tutorial Of How To Converting Avchd Video To Mpeg 1 Format
Convert AVCHD to MPEG-1 Video file format in Windows10 11 Computer, Best software to Convert AVCHD Video to MPEG-1 Video Format. http://www.EasiestSoft.com/converter.exe
How to Convert AVCHD to MPEG-1 Format on Microsoft Windows PC, AVCHD format is a format for the recording and playback of high definition video, Developed jointly by Sony and Panasonic. AVCHD Video uses the MPEG-4 AVC/H.264 standard, , it supports both Dolby AC-3 (Dolby Digital) and uncompressed linear PCM audio. Stereo and multichannel surround (5.1) are both supported.
Steps:
1. Download Win 8 AVCHD format to MPEG-1 video Converter from link below Now:
http://www.EasiestSoft.com/converter.exe
2. Add AVCHD video to the Converter for Win 8
Just Drag your AVCHD files or AVCHD folder to converter to add them.
You can also click the Add Files button in the top-left corner of the interface or in this left pane. Then, you have chance to browse your computer and select your wanted AVCHD videos to load.
3. Choose Output Format you want
Click the "Output Format" drop-down list. When you open its output format list, you can choose "Common Video", "MPEG-1 Video".
4. (Optional) Output Settings
5. Start Microsoft Win 8 AVCHD movie to MPEG-1 format conversion
Now, you can start to convert Windows 8 AVCHD codec to MPEG-1 codec. To do it, just click the "Start" button in the lower-right corner of this app.
6. Open Output
When its done, click the Open Output to find the converted AVCHD media files.
Don't forget to check out latest version of AVCHD to MPEG-1 Converter for Windows at:
http://www.easiestsoft.com/products/video-converter-for-windows/
- published: 04 Sep 2013
- views: 984
18-493 Electroacoustics
- Order: Reorder
- Duration: 5:46
- Updated: 02 Jun 2016
- views: 5
Don't hesitate to comment below if you have any questions or additional phrases
18-493 Electroacoustics Coding of Sound for Multimedia Applications (making lib...
Don't hesitate to comment below if you have any questions or additional phrases
18-493 Electroacoustics Coding of Sound for Multimedia Applications (making liberal use of material compiled by Prof. Tsuhan Chen) Richard Stern rms@cs.cmu.edu
,MPEG Audio
,Outline Basics
Elements of psychoacoustics
Digitization of signals Subband coding MPEG-1 audio Layers I, II, and III
Frame structure and packetization MPEG-2 audio Multichannel audio
Compatibility issues 18-796/Spring 1999/Chen
,Psychoacoustics Threshold in quiet
26 critical bands 0~24 kHz Frequency masking in the same critical band 18-796/Spring 1999/Chen
,Frequency Masking SMR (Signal-to-Mask Ratio) Masking by bands of 1000, 250, and 10 Hz: 18-796/Spring 1999/Chen
,Temporal Masking Pre-Masking: 1/10 of post-masking
Post-Masking: 50~200ms Backward and Forward Masking (gaps of 100, 20, 0 ms): 18-796/Spring 1999/Chen
,The Sampling Theorem Nyquist theorem: If the signal is sampled with a frequency that is at least twice the maximum frequency of the incoming speech, we can recover the original waveform by lowpass filtering. With lower sampling frequencies, aliasing will occur, which produces distortion from which the original signal cannot be recovered.
Recovered sound wave Sound wave LOWPASS FILTER Sampling pulse train 18-796/Spring 1999/Chen
,Sampling of Continuous Sounds Comment: Sampling introduces quantization
18-796/Spring 1999/Chen
,Effects of Undersampling Undersampling at 10 kHz:
18-796/Spring 1999/Chen
,Effects of Quantization 16-bit representation
12-bit representation 8-bit representation 4-bit representation 18-796/Spring 1999/Chen
,Digital Audio CD: 44.1 kHz × 16 bits × 2 channels = 1.411 Mbits/s
18-796/Spring 1999/Chen
,Subband Coding Maximal downsampling
Q should be based on signal-to-masking ratio (SMR) Ear’s critical bands are not uniform, but logarithmic The filter bank should match the critical bands
Q Q Q Analysis Filterbank Synthesis Filterbank 18-796/Spring 1999/Chen
,MPEG-1 Audio ISO/IEC 11172-3 (1988~1991)
First high quality audio compression standard
Sampling rates: 32, 44.1, 48 kHz CD quality two-channel audio at ~256 kbits/s CD: 44.1 kHz × 16 bits × 2 = 1.411 Mbits/s
Quality demonstration (MPEG-1 Layer II) Stereo 44.1 kHz at 64 kbits/s Stereo 44.1 kHz at 128 kbits/s Stereo 44.1 kHz at 192 kbits/s Stereo 44.1 kHz at 256 kbits/s 18-796/Spring 1999/Chen
,Codec Block Diagram 18-796/Spring 1999/Chen
,Layers Increasing complexity, delay, and quality
Layer I: ~384 kbits/s for perceptually lossless quality (4:1)
Layer II: ~192 kbits/s for perceptually lossless quality (8:1) Layer III: ~128 kbits/s for perceptually lossless quality (12:1) (for two channels) 100% perceptual lossless 18-796/Spring 1999/Chen
,Layer I and II Encoder 32 Scaler & Quantizer Analysis Filterbank Mux 512-tap Dynamic Bit Allocator Coder Masking Threshold Generator FFT 512-pt for Layer I 1024-pt for Layer II/III 18-796/Spring 1999/Chen
,Layer III Encoder 6 or 18 with overlap Scaler & Quantizer Huffman Coding Analysis Filterbank MDCT Mux Coding Masking Threshold Generator FFT Freq Resolution = 24kHz / (3218) = 41.67Hz 18-796/Spring 1999/Chen
,Features in Layer III Hybrid filterbank
MDCT with filterbank
Long/short window switching Short for better temporal resolution (to prevent pre-echoes)
Long for better frequency resolution Nonuniform quantization Entropy coding Run-length and Huffman coding
Bit reservoir (buffer) VBR CBR 18-796/Spring 1999/Chen
,Stereo Redundancy Coding Four modes: mono, stereo, dual with two separate channel, joint stereo
Joint stereo mode Human stereo perception > 2kHz is based on envelope
Intensity stereo coding > 2kHz Encode (L + R)
Assign independent left- and right- scalefactors Layer III supports (L+R) and (L–R) coding 18-796/Spring 1999/Chen
,MPEG-2 Audio ISO/IEC 13818-3
Allows lower sampling rates
16, 22.05, and 24 kHz: about half of MPEG-1
From wideband speech to mediumband audio Higher frequency resolution Layer I, II, and III Multichann
wn.com/18 493 Electroacoustics
Don't hesitate to comment below if you have any questions or additional phrases
18-493 Electroacoustics Coding of Sound for Multimedia Applications (making liberal use of material compiled by Prof. Tsuhan Chen) Richard Stern rms@cs.cmu.edu
,MPEG Audio
,Outline Basics
Elements of psychoacoustics
Digitization of signals Subband coding MPEG-1 audio Layers I, II, and III
Frame structure and packetization MPEG-2 audio Multichannel audio
Compatibility issues 18-796/Spring 1999/Chen
,Psychoacoustics Threshold in quiet
26 critical bands 0~24 kHz Frequency masking in the same critical band 18-796/Spring 1999/Chen
,Frequency Masking SMR (Signal-to-Mask Ratio) Masking by bands of 1000, 250, and 10 Hz: 18-796/Spring 1999/Chen
,Temporal Masking Pre-Masking: 1/10 of post-masking
Post-Masking: 50~200ms Backward and Forward Masking (gaps of 100, 20, 0 ms): 18-796/Spring 1999/Chen
,The Sampling Theorem Nyquist theorem: If the signal is sampled with a frequency that is at least twice the maximum frequency of the incoming speech, we can recover the original waveform by lowpass filtering. With lower sampling frequencies, aliasing will occur, which produces distortion from which the original signal cannot be recovered.
Recovered sound wave Sound wave LOWPASS FILTER Sampling pulse train 18-796/Spring 1999/Chen
,Sampling of Continuous Sounds Comment: Sampling introduces quantization
18-796/Spring 1999/Chen
,Effects of Undersampling Undersampling at 10 kHz:
18-796/Spring 1999/Chen
,Effects of Quantization 16-bit representation
12-bit representation 8-bit representation 4-bit representation 18-796/Spring 1999/Chen
,Digital Audio CD: 44.1 kHz × 16 bits × 2 channels = 1.411 Mbits/s
18-796/Spring 1999/Chen
,Subband Coding Maximal downsampling
Q should be based on signal-to-masking ratio (SMR) Ear’s critical bands are not uniform, but logarithmic The filter bank should match the critical bands
Q Q Q Analysis Filterbank Synthesis Filterbank 18-796/Spring 1999/Chen
,MPEG-1 Audio ISO/IEC 11172-3 (1988~1991)
First high quality audio compression standard
Sampling rates: 32, 44.1, 48 kHz CD quality two-channel audio at ~256 kbits/s CD: 44.1 kHz × 16 bits × 2 = 1.411 Mbits/s
Quality demonstration (MPEG-1 Layer II) Stereo 44.1 kHz at 64 kbits/s Stereo 44.1 kHz at 128 kbits/s Stereo 44.1 kHz at 192 kbits/s Stereo 44.1 kHz at 256 kbits/s 18-796/Spring 1999/Chen
,Codec Block Diagram 18-796/Spring 1999/Chen
,Layers Increasing complexity, delay, and quality
Layer I: ~384 kbits/s for perceptually lossless quality (4:1)
Layer II: ~192 kbits/s for perceptually lossless quality (8:1) Layer III: ~128 kbits/s for perceptually lossless quality (12:1) (for two channels) 100% perceptual lossless 18-796/Spring 1999/Chen
,Layer I and II Encoder 32 Scaler & Quantizer Analysis Filterbank Mux 512-tap Dynamic Bit Allocator Coder Masking Threshold Generator FFT 512-pt for Layer I 1024-pt for Layer II/III 18-796/Spring 1999/Chen
,Layer III Encoder 6 or 18 with overlap Scaler & Quantizer Huffman Coding Analysis Filterbank MDCT Mux Coding Masking Threshold Generator FFT Freq Resolution = 24kHz / (3218) = 41.67Hz 18-796/Spring 1999/Chen
,Features in Layer III Hybrid filterbank
MDCT with filterbank
Long/short window switching Short for better temporal resolution (to prevent pre-echoes)
Long for better frequency resolution Nonuniform quantization Entropy coding Run-length and Huffman coding
Bit reservoir (buffer) VBR CBR 18-796/Spring 1999/Chen
,Stereo Redundancy Coding Four modes: mono, stereo, dual with two separate channel, joint stereo
Joint stereo mode Human stereo perception > 2kHz is based on envelope
Intensity stereo coding > 2kHz Encode (L + R)
Assign independent left- and right- scalefactors Layer III supports (L+R) and (L–R) coding 18-796/Spring 1999/Chen
,MPEG-2 Audio ISO/IEC 13818-3
Allows lower sampling rates
16, 22.05, and 24 kHz: about half of MPEG-1
From wideband speech to mediumband audio Higher frequency resolution Layer I, II, and III Multichann
- published: 02 Jun 2016
- views: 5
mgMEDIA.mp4
- Order: Reorder
- Duration: 4:00
- Updated: 15 Jun 2010
- views: 211
Open4Content: Multichannel Digital Distribution Platform
Open4Content: Multichannel Digital Distribution Platform
wn.com/Mgmedia.Mp4
close fullscreen
- Playlist
- Chat
close fullscreen
- Playlist
- Chat
0:31
MASTER multichannel 30 MPEG 4HD
POP USA
published: 26 Nov 2014
MASTER multichannel 30 MPEG 4HD
0:51
MASTER multichannel 50 MPEG 4HD
POP USA
published: 25 Nov 2014
MASTER multichannel 50 MPEG 4HD
4:00
h.264 Encoder - Multi-channel Encoder
Optibase
Carrier grade h.264 MPEG encoder. Best price performance.
Redundancy for encod...
published: 29 Dec 2009
h.264 Encoder - Multi-channel Encoder
h.264 Encoder - Multi-channel Encoder
- Report rights infringement
- published: 29 Dec 2009
- views: 2233
15:19
Daniel Kramer at Munich Piano Festival 1997 / Daniel Kramer beim Münchner Klaviersommer 1997
Live performance of the brilliant jazz pianist Daniel Kramer at the Munich Piano Festival ...
published: 02 Apr 2013
Daniel Kramer at Munich Piano Festival 1997 / Daniel Kramer beim Münchner Klaviersommer 1997
Daniel Kramer at Munich Piano Festival 1997 / Daniel Kramer beim Münchner Klaviersommer 1997
- Report rights infringement
- published: 02 Apr 2013
- views: 7915
3:16
MPEG-21 bitstream syntax description for scalable video codecs
TO USE OR PRINT this presentation click : http://videosliders.com/r/422
================...
published: 16 May 2016
MPEG-21 bitstream syntax description for scalable video codecs
MPEG-21 bitstream syntax description for scalable video codecs
- Report rights infringement
- published: 16 May 2016
- views: 10
3:41
Whale An Interactive, Multichannel Sound Installation, Where One Experiences Oneself.mp4
inspiration, motivation, success, self-help, happiness, energy, positive, mindset, psychol...
published: 29 Dec 2014
Whale An Interactive, Multichannel Sound Installation, Where One Experiences Oneself.mp4
Whale An Interactive, Multichannel Sound Installation, Where One Experiences Oneself.mp4
- Report rights infringement
- published: 29 Dec 2014
- views: 2
3:01
SDWM-4ECOSECORG-MMDS-16-9.mp4
Promoting institutional release on Sustainable Development 4th Economic Sector World Model...
published: 04 Jan 2010
SDWM-4ECOSECORG-MMDS-16-9.mp4
SDWM-4ECOSECORG-MMDS-16-9.mp4
- Report rights infringement
- published: 04 Jan 2010
- views: 1418
3:20
Video tutorial of How to Converting AVCHD Video to MPEG-1 Format
Convert AVCHD to MPEG-1 Video file format in Windows10 11 Computer, Best software to Conve...
published: 04 Sep 2013
Video tutorial of How to Converting AVCHD Video to MPEG-1 Format
Video tutorial of How to Converting AVCHD Video to MPEG-1 Format
- Report rights infringement
- published: 04 Sep 2013
- views: 984
5:46
18-493 Electroacoustics
Don't hesitate to comment below if you have any questions or additional phrases
18-493 El...
published: 02 Jun 2016
18-493 Electroacoustics
18-493 Electroacoustics
- Report rights infringement
- published: 02 Jun 2016
- views: 5
4:00
mgMEDIA.mp4
Open4Content: Multichannel Digital Distribution Platform
published: 15 Jun 2010
mgMEDIA.mp4
mgMEDIA.mp4
- Report rights infringement
- published: 15 Jun 2010
- views: 211
MASTER multichannel 30 MPEG 4HD...
MASTER multichannel 50 MPEG 4HD...
h.264 Encoder - Multi-channel Encoder...
Daniel Kramer at Munich Piano Festival 1997 / Dani...
MPEG-21 bitstream syntax description for scalable ...
Whale An Interactive, Multichannel Sound Installat...
SDWM-4ECOSECORG-MMDS-16-9.mp4...
Video tutorial of How to Converting AVCHD Video to...
18-493 Electroacoustics...
mgMEDIA.mp4...
photo: GFDL / Ltshears
'Walking Murphy's Law' Survives Snake And Spider Bites, Lightning Strike, In 4 Years
Edit WorldNews.com 26 Aug 2016
In the past four years, 31-year-old Kyle Cook has survived a lightning strike, a bite by a venomous spider and – most recently – an attack by a rattlesnake in his backyard in Lakeland, Florida, southwest of Orlando, CBS News reports.“I need to get a (protective) bubble,” Cook says. His father, Mike Cook, sees it another way.“He’s a walking Murphy’s law. I walk on the other side of the mall.” – Mike CookOn Aug....
photo: WN / Aldrin Leyba
Second Chinese Student Dies After Falling Victim To Telephone Scam
Edit WorldNews.com 26 Aug 2016
Just five days after a college-bound student died of cardiac arrest after she was swindled by scammers, another student has died after falling victim to same telecom fraud, China Daily reports.Song Zhenning, a sophomore from Linshu county, Shandong province, received a call on Aug 18 purportedly from the local public security bureau ... He kept a receipt ... WN.com, Jim Berrie ....
photo: AP / Aleppo Media Center via AP
Is Syria And Libya The New Face Of Political Genocide?
Edit WorldNews.com 26 Aug 2016
Article by WN.com Correspondent Dallas DarlingWith news President Barack Obama used a 15-year-old piece of legislation approved by Congress to militarily intervene in, and aggressively bomb, 14 countries, the most recent being Syria and Libya, it appears the new face of genocide is politically motivated ... In other words, everyone cannot exploit everyone else at the same time ... 11 attacks ... by the corporate dominated news media ... 4 ... 5 ... 4.....
photo: AP / James Allan
Tourist describes death, harrowing month in New Zealand bush
Edit US News 26 Aug 2016
Czech tourist Pavlina Pizova has described the death of her partner and the month she spent in the New Zealand wilderness after the couple set out on an ill-fated hike ... ....
photo: AP / Tolga Adanali, Depo
Turkey unveils 3rd Istanbul bridge linking Europe with Asia
Edit The Roanoke Times 26 Aug 2016
ISTANBUL (AP) — Turkey opened one of the world's largest bridges Friday designed to allow traffic to cross the Bosphorus Strait between Europe and Asia and ease congestion in Istanbul. President Recep Tayyip Erdogan oversaw a ceremony inaugurating the $3 billion Yavuz Sultan Selim Bridge, which is touted by its Turko-Italian developers as the world's broadest suspension bridge at 58.4 meters (192 feet) wide ... ... ....
« back to news headlines
NEWEST LG OLED TVS COMPATIBLE WITH FULL RANGE OF HDR TECHNOLOGIES (LG Electronics Inc)
Edit Public Technologies 26 Aug 2016
(Source. LG Electronics Inc). Aug. 26, 2016. LG Shows How HDR Brings Vivid Images to Life by. Demonstrating Compatibility with Three Different HDR Formats. SEOUL, Aug ... LG will team up with the BBC and the European Broadcasting Union to demonstrate HFR HLG content that is compatible with both MPEG DASH (IP streaming) and DVB-T2 transmission systems ... This enhanced frame rate translates to smoother, more realistic onscreen movements ... # # #....
Verizon Fios joins Disney Movies Anywhere platform
Edit Indonesia News 25 Aug 2016
Verizon Fios has signed on as the first multichannel video programming distributor to join Walt Disney Co.'s cloud-based digital movie service platform, Disney Movies Anywhere. U.S. Verizon Fios subs ... ....
RTL to Expand Local Content Focus to Fend Off Netflix, Amazon
Edit Bloomberg 25 Aug 2016
RTL Group SA, seeking to rejuvenate its revenue growth and stock price, will expand local content production and is considering more acquisitions as it fights other broadcasters and internet-based rivals Netflix Inc. and Amazon.com Inc ... Digital revenue increased 20.5 percent to 264 million euros in the first half as viewing on multichannel networks and advertising sales increased ... Before it's here, it's on the Bloomberg Terminal ... ....
Notice on Group Reporting Trip to Gansu and Press Coverage for the First Silk Road (Dunhuang) International Cultural Expo and Gannan Tibetan Autonomous Prefecture (Ministry of Foreign Affairs of the People's Republic of China)
Edit Public Technologies 25 Aug 2016
(Source. Ministry of Foreign Affairs of the People's Republic of China). Dear journalists,. The first Silk Road (Dunhuang) International Cultural Expo will be held in Dunhuang on September 19-21, which aims to promote cultural exchanges for all-round cooperation and development in multichannel and high level, and carry forward the Silk Road Spirit - 'peace and cooperation, openness and inclusiveness, mutual learning and mutual benefit'....
Access Intelligence Launches Groundbreaking Editorial Service VerticalFeed, Leveraging the Power of Video (Access Intelligence LLC)
Edit Public Technologies 25 Aug 2016
(Source. Access Intelligence LLC) ... VerticalFeed is a subscription news service providing short custom news feeds for associations with the goal of informing and engaging their audiences ... The group's other brands include PR News, AdMonsters, Cynopsis, Folio, min, Cablefax, Studio Daily, The Social Shake-Up, and sister brands Chief Marketer, Multichannel Merchant, Event Marketer and others ... About Access Intelligence ... About Folio ... 1-2 in NYC....
Verizon Fios joins Disney Movies Anywhere platform
Edit Business Journal 24 Aug 2016
Verizon Fios has signed on as the first multichannel video programming distributor to join Walt Disney Co.’s cloud-based digital movie service platform, Disney Movies Anywhere. U.S ... Disney Movies Anywhere… ... ....
Antavo and Emarsys Partner to Provide Powerful E-commerce Loyalty Programs to Further Strengthen Customer Retention ...
Edit Nasdaq Globe Newswire 24 Aug 2016
INDIANAPOLIS, Aug ... Emarsys also chose Antavo based on three key differentiators of the company’s loyalty programs. Easy set up.Loyalty programs run automatically ... About Antavo ... The company provides actionable intelligence to enterprises targeting their customers, combining machine learning and data science with true personalization and multichannel delivery to reach customers most effectively, maximizing engagement and results ... CONTACT....
Starz Continues to Score with Fourth Season Renewal of Hit Comedy Series “Survivor’s Remorse”
Edit Stockhouse 24 Aug 2016
Starz Continues to Score with Fourth Season Renewal of Hit Comedy Series “Survivor’s Remorse” ... “I’m incredibly proud of the team at ‘Survivor’s Remorse’ and what we’ve built,” said LeBron James ... About “Survivor’s Remorse” ... Join the conversation with #SurvivorsRemorse and #STARZ ... multichannel video distributors, including cable operators, satellite television providers, telecommunications companies, and other online and digital platforms....
Review: Updated: Chromecast
Edit TechRadar 24 Aug 2016
Introduction and overview ... more expensive) streaming video boxes. So what's helped it stand the test of time since its inception three years ago?. First, It's one of the simplistic and easy to use streaming devices ... Read ... For those inclined to wonder about video and audio codecs, the new Chromecast supports H.264 1080p, H.264 720 x 480, MPEG-4, VP8 video and AAC-LC, AC3, eAC3 (Dolby Digital Plus), FLAC, MP3, PCM/WAV, Vorbis audio files ... ....
Disney Movies Anywhere Adds Its First Multichannel Video Programming Distributor, Fios by Verizon, to Its ...
Edit Business Wire 23 Aug 2016
BURBANK, Calif.--(BUSINESS WIRE)--Continuing efforts to provide more ways to buy and watch your favorite Disney, Pixar, Marvel and Star Wars movies at home or on the go, Disney Movies Anywhere today announces the addition of Fios by Verizon, the first multichannel video programming distributor to join its cloud-based digital movie service platform. The launch coincides with today’s digital release of Disney’s hit film The Jungle Book....
We’re Going on a Lead Hunt: 3 Ways to Amp Up Your Lead Generation Strategy (Pardot LLC)
Edit Public Technologies 23 Aug 2016
(Source. Pardot LLC). It's no secret that taking a more customer-centric view in your marketing campaigns will help you drive lead generation. Buyers are looking for personalized, efficient customer relationships that allow them to find solutions to their pain points and get what they need ... Multichannel Goes A Long Way ... Be careful here. Multichannel also means multi-method, multi-content, and multi-customization ... Crossing the Blog Bridge.....
New board members set to join INGKA Holding B.V. Supervisory Board of IKEA Group (IKEA North America Services LLC)
Edit Public Technologies 23 Aug 2016
'With their customer focused and solid background in retail, both from logistics and digital development, Jon and Mark will bring additional contribution of experiences to the Board, which will further enable us to develop our offering as a multichannel retailer for the many people' says Lars-Johan Jarnheimer, Chairman of the INGKA Holding B.V....
Starz Hires Government Relations and Communications Firm the Glover Park Group
Edit Stockhouse 23 Aug 2016
Starz (NASDAQ ... As the multichannel video industry continues to consolidate, lawmakers and regulators are increasingly focused on ensuring that the public interest in access to quality, diverse programming is preserved and promoted ... About Starz. Starz (NASDAQ ... multichannel video distributors, including cable operators, satellite television providers, telecommunications companies, and other online and digital platforms ... Starz ... or ... or....
- 1
- 2
- 3
- 4
- 5
- Next page »
