{"title":"定点Dsp芯片上Qcelp的实时实现","authors":"Kim, Yoon, Lee, Choi, Yoo","doi":"10.1109/ICCE.1997.626005","DOIUrl":null,"url":null,"abstract":"This paper presents a real-time implementation of the QCELP speech coder which has been chosen as digital cellular standard in North America and Korea. A real-time implementation of QCELP algorithm can be realized using 16-bit fixed point digital signal processor. The principle of QCELP algorithm and real-time implementation on fixed point DSP chip are addressed. The paper also discusses the finite word-length effects and considers the methods to reduce the effects through fixed point C simulation. In addition to speech service in CDMA Mobile System, the implementation of data service(be1ow 4.8kbps) by speech coder bypass operation is presented.","PeriodicalId":127085,"journal":{"name":"1997 International Conference on Consumer Electronics","volume":"65 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1997-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Real-time Implementation Of Qcelp On A Fixed Point Dsp Chip\",\"authors\":\"Kim, Yoon, Lee, Choi, Yoo\",\"doi\":\"10.1109/ICCE.1997.626005\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper presents a real-time implementation of the QCELP speech coder which has been chosen as digital cellular standard in North America and Korea. A real-time implementation of QCELP algorithm can be realized using 16-bit fixed point digital signal processor. The principle of QCELP algorithm and real-time implementation on fixed point DSP chip are addressed. The paper also discusses the finite word-length effects and considers the methods to reduce the effects through fixed point C simulation. In addition to speech service in CDMA Mobile System, the implementation of data service(be1ow 4.8kbps) by speech coder bypass operation is presented.\",\"PeriodicalId\":127085,\"journal\":{\"name\":\"1997 International Conference on Consumer Electronics\",\"volume\":\"65 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1997-06-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"1997 International Conference on Consumer Electronics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICCE.1997.626005\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"1997 International Conference on Consumer Electronics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICCE.1997.626005","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Real-time Implementation Of Qcelp On A Fixed Point Dsp Chip
This paper presents a real-time implementation of the QCELP speech coder which has been chosen as digital cellular standard in North America and Korea. A real-time implementation of QCELP algorithm can be realized using 16-bit fixed point digital signal processor. The principle of QCELP algorithm and real-time implementation on fixed point DSP chip are addressed. The paper also discusses the finite word-length effects and considers the methods to reduce the effects through fixed point C simulation. In addition to speech service in CDMA Mobile System, the implementation of data service(be1ow 4.8kbps) by speech coder bypass operation is presented.
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