MPEG
MP3
Advanced Audio Coding is a compression & encoding scheme for Audio formats.
Data de duplication is a process that eliminates duplicate copies of repeating data. The compression technique that it uses to function is called intelligent data compression.
compression
MP3
The technique is known as "Volume compression" or "Dynamic range compression". This Wikipedia link provides the details http://en.wikipedia.org/wiki/Audio_level_compression#Marketing
what is the modulation used in telivision for audio signals
MP3
No, there different types of audio compression. I belive the compression ratio for mp3 is 11:1.
The 2 thumb-encircling hands technique.
Digital audio coding is the process in which audio is stored and recreated through digital means. It may encorporate digital audio compression, modulation methods and sample resolutions and frequencies.