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- Qualcomm_code-excited_linear_prediction abstract "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 since it provides better speech quality with fewer bits. The two versions, QCELP8 and QCELP13, operate at 8 and 13 kilobits per second (Kbit/s) respectively.In CDMA systems, a QCELP vocoder converts a sound signal into a signal transmissible within a circuit. In wired systems, voice signals are generally sampled at 8 kHz (that is, 8,000 sample values per second) and then encoded by 8-bit quantization for each sample value. Such a system transmits at 64 kbit/s, an expensive rate in a wireless system. A QCELP vocoder with variable rates can reduce the rate enough to fit a wireless system by coding the information more efficiently. In particular, it can change its own coding rates based on the speaker's volume or pitch; a louder or higher-pitched voice requires a higher rate.".
- Qualcomm_code-excited_linear_prediction wikiPageExternalLink 2489.
- Qualcomm_code-excited_linear_prediction wikiPageID "1188592".
- Qualcomm_code-excited_linear_prediction wikiPageLength "1811".
- Qualcomm_code-excited_linear_prediction wikiPageOutDegree "12".
- Qualcomm_code-excited_linear_prediction wikiPageRevisionID "543889511".
- Qualcomm_code-excited_linear_prediction wikiPageWikiLink Category:Qualcomm.
- Qualcomm_code-excited_linear_prediction wikiPageWikiLink Category:Speech_codecs.
- Qualcomm_code-excited_linear_prediction wikiPageWikiLink Code_division_multiple_access.
- Qualcomm_code-excited_linear_prediction wikiPageWikiLink Data_rate_units.
- Qualcomm_code-excited_linear_prediction wikiPageWikiLink Enhanced_Variable_Rate_Codec.
- Qualcomm_code-excited_linear_prediction wikiPageWikiLink IS-96A.
- Qualcomm_code-excited_linear_prediction wikiPageWikiLink Line_code.
- Qualcomm_code-excited_linear_prediction wikiPageWikiLink Qualcomm.
- Qualcomm_code-excited_linear_prediction wikiPageWikiLink Quantization_(signal_processing).
- Qualcomm_code-excited_linear_prediction wikiPageWikiLink Speech_coding.
- Qualcomm_code-excited_linear_prediction wikiPageWikiLink Vocoder.
- Qualcomm_code-excited_linear_prediction wikiPageWikiLinkText "QCELP".
- Qualcomm_code-excited_linear_prediction wikiPageWikiLinkText "Qualcomm code-excited linear prediction".
- Qualcomm_code-excited_linear_prediction extension ".qcp".
- Qualcomm_code-excited_linear_prediction mime "audio/qcelp".
- Qualcomm_code-excited_linear_prediction name "Qualcomm PureVoice".
- Qualcomm_code-excited_linear_prediction owner Qualcomm.
- Qualcomm_code-excited_linear_prediction wikiPageUsesTemplate Template:Compression_Software_Implementations.
- Qualcomm_code-excited_linear_prediction wikiPageUsesTemplate Template:Compression_formats.
- Qualcomm_code-excited_linear_prediction wikiPageUsesTemplate Template:Expert-subject.
- Qualcomm_code-excited_linear_prediction wikiPageUsesTemplate Template:Infobox_file_format.
- Qualcomm_code-excited_linear_prediction wikiPageUsesTemplate Template:Unreferenced.
- Qualcomm_code-excited_linear_prediction subject Category:Qualcomm.
- Qualcomm_code-excited_linear_prediction subject Category:Speech_codecs.
- Qualcomm_code-excited_linear_prediction hypernym Codec.
- Qualcomm_code-excited_linear_prediction type Company.
- Qualcomm_code-excited_linear_prediction type Software.
- Qualcomm_code-excited_linear_prediction type Company.
- Qualcomm_code-excited_linear_prediction type Redirect.
- Qualcomm_code-excited_linear_prediction comment "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 since it provides better speech quality with fewer bits.".
- Qualcomm_code-excited_linear_prediction label "Qualcomm code-excited linear prediction".
- Qualcomm_code-excited_linear_prediction sameAs Q5354833.
- Qualcomm_code-excited_linear_prediction sameAs QCELP.
- Qualcomm_code-excited_linear_prediction sameAs m.04fr8f.
- Qualcomm_code-excited_linear_prediction sameAs Q5354833.
- Qualcomm_code-excited_linear_prediction sameAs QCELP.
- Qualcomm_code-excited_linear_prediction wasDerivedFrom Qualcomm_code-excited_linear_prediction?oldid=543889511.
- Qualcomm_code-excited_linear_prediction isPrimaryTopicOf Qualcomm_code-excited_linear_prediction.