Silence compression
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Silence Compression provides an excellentTemplate:Really? way to squeeze redundancy out of the sound files. Silence compression scheme is essential for efficient voice communication system. It allows significant reduction of transmission bandwidth during silence period.
A Silence compression scheme include a voice activity detection (VAD), a silence insertion descriptor (SID) and a comfort noise generator (CNG) module.
Parameters used for silence compression
- threshold value
- the way to encode silence
- threshold for recognizing start of silence
- an indication of when silence is over
- parameter to get threshold, means there is no silence until unless there is three silence in the rows.
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