Real-time implementation of QCELP on a fixed point DSP chip

被引：0
|
作者：
Kim, JW
Yoon, BS
Lee, WM
Choi, SI
Yoo, YK
机构：
来源：
INTERNATIONAL CONFERENCE ON CONSUMER ELECTRONICS, 1997 DIGEST OF TECHNICAL PAPERS | 1997年
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中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
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(below 4.8kbps) by speech coder bypass operation is presented.
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页码：374 / 375
页数：2
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