- published: 21 May 2016
- views: 138
High-Efficiency Advanced Audio Coding (HE-AAC) is an audio coding format for lossy data compression of digital audio defined as an MPEG-4 Audio profile in ISO/IEC 14496-3. It is an extension of Low Complexity AAC (AAC LC) optimized for low-bitrate applications such as streaming audio. HE-AAC version 1 profile (HE-AAC v1) uses spectral band replication (SBR) to enhance the compression efficiency in the frequency domain. HE-AAC version 2 profile (HE-AAC v2) couples SBR with Parametric Stereo (PS) to enhance the compression efficiency of stereo signals. It is a standardized and improved version of the AACplus codec.
HE-AAC is used in digital radio standards like DAB+ and Digital Radio Mondiale.
The progenitor of HE-AAC was developed by Coding Technologies under the trade name CT-aacPlus. CT-aacPlus combined MPEG-2 AAC LC with the Coding Technologies invented spectral band replication (SBR). CT-aacPlus is the codec used by XM Radio for their satellite radio service. Subsequently, Coding Technologies submitted their SBR to MPEG as a basis of HE-AAC.
AAC may refer to:
HE AAC vs MP3 at 64kbps...... i encoded this video with h.264 video codec! listen and pay attension to the difference in the cymbals between the two, especially the High-Hat!! The MP3 version should sound muddled distorted and should also make a swooshing sound, wille the AAC version should sound crisp and clean almost like Linear-PCM, but its not its HE AAC!! I used HE AAC so its kinda of an unfair competition against mp3 because HE AAC is supper efficiant at compreesing.
http://www.iis.fraunhofer.de/en/ff/amm/lizenz/patent/patentlizenz/xheaac.html (Deutsche Version s.u.) xHE-AAC (Extended HE-AAC), the latest upgrade to the MPEG AAC codec family, is the audio codec of choice for digital radio and low bit rate streaming applications. Selected as the mandatory audio codec for DRM (Digital Radio Mondiale), xHE-AAC bridges the gap between speech and audio coding, and provides consistent high quality audio for all signal types, such as talk radio, a music program or a jingle. xHE-AAC (Extended HE-AAC) ist der perfekte Audiocodec für Digitalradio und Streaming bei niedrigen Bitraten. Die Weiterentwicklung der MPEG AAC Codec-Familie vereint die beiden Welten der Audio- und der Sprachcodierung: Ob Talksendungen inklusive Musik-Jingles oder Musikprogramme – xHE-AAC...
AAC+,eAAC+ (HE-AAC version 2) is the highest compression audio technology . It has 5 times smaller MP3 size . And almost all new audio devices support for this file . It means you can save data storage space up to 5 times . If you have 1 GB storage (MicroSD/SD) you can save music files approx. 1000 files with same quality standard MP3 (128 kbps/44.1 kHz/Stereo) This is the easy way to convert (transcode) MP3 to AAC+ (HE-AAC v2) . Just using Winamp 5 or later that you can download here http://goo.gl/CalH1e I have converted MP3 to 9 AAC+/eAAC+ files with different bitrates. Than I play them and you can compare it in the video that I made this. To play AAC+/eAAC+ : - PC/Laptop , you can play with winamp , VLC Media Player ( http://goo.gl/Ck1hBv ) - Use your Android phone and other audio dev...
(feat. Dion, The Game)
[plane soars overhead]
Ay ay ay ay... [echoes]
[Chorus: Dion - singing]
Cal-i-forn-ia, hope-you-got-your-gun
If-not-call-one-eight-hundred, HOMICIDE
One-eight-hundred, HOMICIDE
Cal-i-forn-ia, when-you-need-us
You-can-call-us-one-eight-hundred, HOMICIDE
One-eight-hundred, HOMICIDE
[The Game:]
I'm a motherfuckin Aftermath nightmare, wake up motherfucker
I traded in my black Nike Airs
For a white pair of Converse, Dre let me bomb first
Get out on bail and still make the concert
Ask Eminem, homey I'm Shady
Too much West coast dick lick it, remember Jay-Z?
"The Chronic" and "Doggystyle" raised me
My life like rock, it was based in the 80's
Red bandana tied around my face
I hope the shit don't jam is how gangsters pray
And if God forgives the nigga that shot Suge
Then all dawgs should go to heaven in my hood
I resurrected this gangster shit
And this the motherfuckin thanks I get?
Every city got Crips and Bloods
But since 'Pac died it ain't been no "California Love"