FM broadcasting

FM broadcasting is a VHF broadcasting technology, pioneered by Edwin Howard Armstrong, which uses frequency modulation (FM) to provide high-fidelity sound over broadcast radio. The term "FM band" describes the frequency band in a given country which is dedicated to FM broadcasting. This term is slightly misleading, as it equates a modulation method within a range of frequencies.

Broadcast bands

Throughout the world, the FM broadcast band falls within the VHF part of the radio spectrum. Usually 87.5 to 108.0 MHz is used, or some portion thereof, with few exceptions:

The frequency of an FM broadcast station (more strictly its assigned nominal center frequency) is usually an exact multiple of 100 kHz. In most of South Korea, the Americas, the Philippines and the Caribbean, only odd multiples are used. In some parts of Europe, Greenland and Africa, only even multiples are used. In the UK odd or even are used. In Italy, multiples of 50 kHz are used. There are other unusual and obsolete standards in some countries, including 0.001, 0.01, 0.03, 0.074, 0.5, and 0.3 MHz. However, to minimise cross-channel interference, stations operating from the same or geographically close transmitters tend to keep to at least a 0.5 MHz frequency separation even when closer spacing is technically permitted, with closer tunings reserved for more distantly spaced transmitters as potentially interfering signals are already more attenuated and so have less effect on neighbouring frequencies. RCA stereo models use multiples of 0.2 MHz, starting at 87.50 and ending at 107.90.

Music director

A music director may be the director of an orchestra or concert band, the director of music for a film, the director of music at a radio station, the head of the music department in a school, the coordinator of the musical ensembles in a university, college, or institution (but not usually the head of the academic music department), the head bandmaster of a military band, the head organist and choirmaster of a church, or an Organist and Master of the Choristers (a title given to a Director of Music at a cathedral, particularly in England).

Orchestra

The title of "music director" or "musical director" is used by many symphony orchestras to designate the primary conductor and artistic leader of the orchestra. The term "music director" is most common for orchestras in the United States. With European orchestras, the titles of "principal conductor" or "chief conductor" are more common, which designate the conductor who directs the majority of a given orchestra's concerts in a season. In musical theatre and opera, the music director is in charge of the overall musical performance, including ensuring that the cast knows the music thoroughly, supervising the musical interpretation of the performers and pit orchestra, and conducting the orchestra.

Anand Bakshi

Anand Bakshi (21 July 1930 – 30 March 2002) was a popular Indian poet and lyricist.

Biography

Early life

Anand Bakshi (Bakhshi Anand Prakash Vaid) was born in Rawalpindi, now in Pakistan, in 1930. His ancestors were Mohyal Brahmin from Kurree, near Rawalpindi, and had origins in Kashmir. His mother, Sumitra, died 1940, when he was 10. Bakshi's family migrated to India (Delhi) on 2 October 1947, in the aftermath of the partition, when he was 17 years old. The family arrived in Lucknow and later they traveled to Delhi and settled there.

Success

Anand Bakshi came to Hindi films to make a name for himself in writing and singing but ended up becoming more successful in writing lyrics. He got his break writing songs in a Brij Mohan's film titled, "Bhala Aadmi", 1958, acted by Bhagwan Dada. He wrote 4 songs in this film. His first song in this film was "Dharti Ke Laal Na Kar Itna Malaal" which was recorded on 9 Nov 1956.

He first found success with the film Mehendi Lagi Mere Haath, which was produced by (LimeLight), Music Kalyanji & Anandji Music Pub-HMV/Saregama 1962. Then he found big success in 1965 (Jab Jab Phool Khile) produced by Limelight and Music by Kalyanji Anandji and went on to work as a lyricist of over 3500 songs and 638 films in his career. He got his first time singing in a film was in Mom Ki Gudiya(1972). The first song he sang was a duet “Baaghon mein bahaar aayi hothon pe pukaar aayi”, along with Lata Mangeshkar for music composed by Laxmikant Pyarelal. He also sang the solo " Main dhoondh raha tha sapnon mein" from the same film. He also sang songs in 4 other films: Sholay (1975) where he sang the quawwali "Chand Sa Koi Chehera" along with Manna Dey, Kishore Kumar, Bhupinder; Maha Chor (1976); Charas (1976); and, Balika Badhu (1976).

Video

Video is an electronic medium for the recording, copying, playback, broadcasting, and display of moving visual media.

Video systems vary greatly in the resolution of the display, how they are refreshed, and the rate of refreshed, and 3D video systems exist. They can also be carried on a variety of media, including radio broadcast, tapes, DVDs, computer files etc.

History

Video technology was first developed for Mechanical television systems, which were quickly replaced by cathode ray tube (CRT) television systems, but several new technologies for video display devices have since been invented. Charles Ginsburg led an Ampex research team developing one of the first practical video tape recorder (VTR). In 1951 the first video tape recorder captured live images from television cameras by converting the camera's electrical impulses and saving the information onto magnetic video tape.

Video recorders were sold for $50,000 in 1956, and videotapes cost $300 per one-hour reel. However, prices gradually dropped over the years; in 1971, Sony began selling videocassette recorder (VCR) decks and tapes to the public.

Radio

Radio is the use of radio waves is to carry information, such as sound, by systematically modulating some property of electromagnetic energy waves transmitted through space, such as their amplitude, frequency, phase, or pulse width. When radio waves strike an electrical conductor, the oscillating fields induce an alternating current in the conductor. The information in the waves can be extracted and transformed back into its original form.

Radio systems need a transmitter to modulate (change) some property of the energy produced to impress a signal on it, for example using amplitude modulation or angle modulation (which can be frequency modulation or phase modulation). Radio systems also need an antenna to convert electric currents into radio waves, and vice versa. An antenna can be used for both transmitting and receiving. The electrical resonance of tuned circuits in radios allow individual stations to be selected. The electromagnetic wave is intercepted by a tuned receiving antenna. A radio receiver receives its input from an antenna and converts it into a form usable for the consumer, such as sound, pictures, digital data, measurement values, navigational positions, etc. Radio frequencies occupy the range from a 3 kHz to 300 GHz, although commercially important uses of radio use only a small part of this spectrum.