Dialogic ADPCM: Difference between revisions
Cesium 133 (talk | contribs) m double-stubbed it... |
wtf? you're SO going to have to cite that. |
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'''Dialogic ADPCM''' or '''VOX''' is an [[audio file format]], optimized for storing [[digitized]] voice data at a low [[sampling rate]]. VOX files are most commonly found in [[telephony]] applications, as well as an occasional arcade [[redemption game]]. |
'''Dialogic ADPCM''' or '''VOX''' is an [[audio file format]], optimized for storing [[digitized]] voice data at a low [[sampling rate]]. VOX files are most commonly found in [[telephony]] applications, as well as an occasional arcade [[redemption game]]{{fact}}. |
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Similar to other [[Pulse-code modulation|ADPCM (Adaptive Differential Pulse Code Modulation)]] formats, Dialogic ADPCM [[Audio data compression|compresses]] audio data into a series of 4-bit samples. Dialogic ADPCM files can have a sampling rate of 6000 or 8000 samples per second, but 8000 samples per second (8000Hz) is more common. Unlike a [[WAV]] file, a VOX file does not contain a header to specify the encoding format or the sampling rate, so this information must be known in order to play the file. If not known, it is normally assumed that a VOX file is encoded with Dialogic ADPCM at a sampling rate of 8000Hz. It is possible that a VOX file may be encoded in a format other than Dialogic ADPCM, but this is not common. |
Similar to other [[Pulse-code modulation|ADPCM (Adaptive Differential Pulse Code Modulation)]] formats, Dialogic ADPCM [[Audio data compression|compresses]] audio data into a series of 4-bit samples. Dialogic ADPCM files can have a sampling rate of 6000 or 8000 samples per second, but 8000 samples per second (8000Hz) is more common. Unlike a [[WAV]] file, a VOX file does not contain a header to specify the encoding format or the sampling rate, so this information must be known in order to play the file. If not known, it is normally assumed that a VOX file is encoded with Dialogic ADPCM at a sampling rate of 8000Hz. It is possible that a VOX file may be encoded in a format other than Dialogic ADPCM, but this is not common. |
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Revision as of 09:30, 29 October 2010
Dialogic ADPCM or VOX is an audio file format, optimized for storing digitized voice data at a low sampling rate. VOX files are most commonly found in telephony applications, as well as an occasional arcade redemption game[citation needed].
Similar to other ADPCM (Adaptive Differential Pulse Code Modulation) formats, Dialogic ADPCM compresses audio data into a series of 4-bit samples. Dialogic ADPCM files can have a sampling rate of 6000 or 8000 samples per second, but 8000 samples per second (8000Hz) is more common. Unlike a WAV file, a VOX file does not contain a header to specify the encoding format or the sampling rate, so this information must be known in order to play the file. If not known, it is normally assumed that a VOX file is encoded with Dialogic ADPCM at a sampling rate of 8000Hz. It is possible that a VOX file may be encoded in a format other than Dialogic ADPCM, but this is not common.
Dialogic ADPCM is an open file format.
References
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