Adaptive differential pulse-code modulation (ADPCM) is a variant of differential pulse-code modulation (DPCM) that varies the size of the quantization step, to allow further reduction of the required data bandwidth for a given signal-to-noise ratio.

The term ADPCM stands for Adaptive Delta Pulse Code Modulation. In this modulation, a disparity value can be regulated mathematically based on the input waveform’s slope is stored.

Jan 7, 2021 · Adaptive Differential Pulse Code Modulation (ADPCM) is a lossy compression format that is implemented for XAudio2 to provide additional features for specifying the size of the compression sample block.

The ADPCM algorithm works with actual linear PCM inputs/outputs, while the standard format for digital telephony is either A or -law, which are logarithmic laws of quantization.

Sep 18, 2019 · What is ADPCM? ADPCM stands for Adaptive Differential Pulse-Code Modulation, is a technique for converting analog sound, such as speech, into binary digital information by frequently sampling the sound and expressing its modulation in binary form.

The short form of Adaptive Delta Pulse Code Modulation is ADPCM. In ADPCM, a difference value that has been mathematically adjusted according to the slope of the input waveform is stored.

The ADPCM algorithm takes advantage of the high correlation between consecutive speech samples, which enables future sample values to be predicted. Instead of encoding the speech sample, ADPCM encodes the difference between a predicted sample and the speech sample.

Jun 17, 2009 · An ADPCM algorithm is used to map a series of 8 bit u-law (or a-law) PCM samples into a series of 4 bit ADPCM samples. In this way, the capacity of the line is doubled.

Jun 3, 2024 · ADPCM, which stands for Adaptive Differential Pulse Code Modulation, is a form of digital audio compression that is used to reduce the amount of data required to represent audio signals.

Adaptive Differential Pulse Code Modulation (ADPCM), also called Delta Pulse Code Modulation, is a compression coding for a signal, which is based on differential values similar to Differential Pulse Code Modulation (DPCM), and in which the scaling of the quantization stages is additionally adjusted (adapted) depending on the signal curve.