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glossary:a:adpcm [2018/06/11 18:54] (current)
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 +Adaptive Differential Pulse-Code Modulation (ADPCM) is a [differential pulse-code modulation](/​glossary/​d/​dpcm) variant where the size of [quantization](/​glossary/​q/​quantization) ranges is modified with a scaling factor before encoding. This means that the bandwidth requirements are reduced.