Simple compression methods
Traditional lossless compression methods (Huffman, LZW, etc.) are usually poorly applied to compressing audio information (for the same reasons as when compressing visual information).
Some lossy compression methods are listed below:
Compression of silence (pauses) – defines periods of “silence”, works similarly to run-length coding.
ADPCM – Adaptive Differential Pulse Code Modulation (the term adaptive delta-pulse-code modulation (ADPCM) is used in Russian literature. For example, the CCITT G.721 standard is from 16 to 32 Kbits / sec: Continue reading
Nature has given us legs and arms,
to save and defend ourselves – and we invented sport.
Nature gave us a sense of height
to sort the sounds of the world around us – and we invented music. ”
The task of the sound engineer — together with the composer and performer — is to create a sound image and transmit it to the listener using sound recording, sound reinforcement, broadcasting, soundtracks for film and television, etc. Continue reading