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unusual facts about Adaptive differential pulse-code modulation


Adaptive differential pulse-code modulation

ADPCM was developed in the early 1970s at Bell Labs for voice coding, by P. Cummiskey, N. S. Jayant, and James L. Flanagan.


7.1 surround sound

The Blu-ray Disc and the HD DVD home video formats provide up to eight channels of lossless DTS-HD Master Audio, Dolby TrueHD or uncompressed LPCM audio at 96 or 48 kHz/24 or 16-bit.

Miracast

Miracast allows a portable device or computer to send, securely, up to 1080p HD video and 5.1 surround sound (AAC and AC3 are optional codecs, mandated codec is linear pulse-code modulation — 16 bits 48 kHz 2 channels).

Wavetable synthesis

Starting around 1993, with the introduction of Creative Labs' Sound Blaster AWE32 and Gravis' Ultrasound sound cards, the term "wavetable" started to be applied as a marketing term to any sound card that used PCM samples as the basis of sound creation.


see also