Adaptive Differential Pulsation Code Modulation

Adaptive Differential (Delta) Pulse Code Manipulation based on PCM. Loss-impaired compression for audio-data (e.g. CD-ROM/XA, CD-i) possible on 3 different levels. Only differences between the signals are saved. By using this format, up to 16 hours of audio files can be recorded onto one disc (14400 Hertz radio quality).

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