C Implementation & comparison of companding & silence audio compression techniques
Just about all the newest living room audio-video electronics
and PC multimedia products being designed today will
incorporate some form of compressed digitized-audio
processing capability. Audio compression reduces the bit rate
required to represent an analog audio signal while maintaining
the perceived audio quality. Discarding inaudible data reduces
the storage, transmission and compute requirements of
handling high-quality audio files. This paper covers wave
audio file format & algorithm of silence compression method
and companding method to compress and decompress wave
audio file. Then it compares the result of these two methods.
Keywords: thresold, chunk, bitstream, companding,
silence
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