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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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qcelp rate cdma systems system vocoder coding qualcomm speech quality per second kbit voice wireless rates developed 1994 purevoice format
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Qualcomm code-excited linear prediction | Developed by | Qualcomm | 1.00 | infobox |
| Qualcomm code-excited linear prediction | Filename extension | .mw-parser-output .monospaced{font-family:monospace,monospace} .qcp | 1.00 | infobox |
| Qualcomm code-excited linear prediction | Free format? | No | 1.00 | infobox |
| Qualcomm code-excited linear prediction | Initial release | 1994; 32 years ago (1994) | 1.00 | infobox |
| Qualcomm code-excited linear prediction | Internet media type | audio/qcelp | 1.00 | infobox |
| Qualcomm code-excited linear prediction | Latest release | TIA IS-733 December 1999; 26 years ago (1999-12) | 1.00 | infobox |
| Qualcomm code-excited linear prediction | Open format? | Yes | 1.00 | infobox |
| Qualcomm code-excited linear prediction | Type of format | Lossy audio | 1.00 | infobox |
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