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Qualcomm code-excited linear prediction

Qualcomm code-excited linear prediction (QCELP), also known as Qualcomm PureVoice, is a speech codec developed in 1994 by Qualcomm to increase the speech quality of the IS-96A codec earlier used in CDMA networks. It was later replaced with EVRC to achieve better speech quality with fewer bits. The two versions, QCELP8 and QCELP13, operate at 8 and 13…

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Developed by
Qualcomm
Free format?
No
Initial release
1994; 32 years ago (1994)
Internet media type
audio/qcelp
Latest release
TIA IS-733 December 1999; 26 years ago (1999-12)
Open format?
Yes

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Qualcomm code-excited linear prediction

Nodes11
Edges10
Triples8
Avg. degree1.82
Density0.181818
Components1

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Qualcomm code-excited linear prediction

Top relations

Developed by · 1
Qualcomm code-excited linear prediction → Qualcomm
Filename extension · 1
Qualcomm code-excited linear prediction → .mw-parser-output .monospaced{font-family:monospace,monospace} .qcp
Free format? · 1
Qualcomm code-excited linear prediction → No
Initial release · 1
Qualcomm code-excited linear prediction → 1994; 32 years ago (1994)
Internet media type · 1
Qualcomm code-excited linear prediction → audio/qcelp
Latest release · 1
Qualcomm code-excited linear prediction → TIA IS-733 December 1999; 26 years ago (1999-12)
Open format? · 1
Qualcomm code-excited linear prediction → Yes
Type of format · 1
Qualcomm code-excited linear prediction → Lossy audio

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Important terminology

qcelp rate cdma systems system vocoder coding qualcomm speech quality per second kbit voice wireless rates developed 1994 purevoice format

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Qualcomm code-excited linear predictionDeveloped byQualcomm1.00infobox
Qualcomm code-excited linear predictionFilename extension.mw-parser-output .monospaced{font-family:monospace,monospace} .qcp1.00infobox
Qualcomm code-excited linear predictionFree format?No1.00infobox
Qualcomm code-excited linear predictionInitial release1994; 32 years ago (1994)1.00infobox
Qualcomm code-excited linear predictionInternet media typeaudio/qcelp1.00infobox
Qualcomm code-excited linear predictionLatest releaseTIA IS-733 December 1999; 26 years ago (1999-12)1.00infobox
Qualcomm code-excited linear predictionOpen format?Yes1.00infobox
Qualcomm code-excited linear predictionType of formatLossy audio1.00infobox

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