%0 Journal Article
%T Implementation of ITU-T G.723.1 speech codec on TMS320C50<br>G.723.1编解码器在TMS320C50上的优化实现
%A ZHU Rong
%A HU Rui-min
%A CHANG Jun
%A WANG Zhong-yuan
%A <br>朱荣
%A 胡瑞敏
%A 常军
%A 王中元
%J 计算机应用研究
%D 2010
%I 
%X Digital signal processor is widely used in speech coding and decoding process. This paper after introduced TMS320C50 fixed point DSP chip and the algorithm of ITU-T G.723.1 briefly, addressed the implementation of G.723.1 codec on TMS320C50. Some key design techniques, such as memory allocation, algorithm optimization and calculation precision processing were presented in detail. The realized codec not only can pass all the ITU-TG.723.1 standard test sequences, but also performs high running efficiency with reasonable memory management.
%K fixed point DSP
%K speech codec
%K G
%K 723
%K 1
%K optimization<br>定点DSP
%K 语音编解码
%K G.723.1
%K 优化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=A9D9BE08CDC44144BE8B5685705D3AED&aid=71063B436DD0D68982A9DEF4C744A44A&yid=140ECF96957D60B2&vid=DB817633AA4F79B9&iid=E158A972A605785F&sid=14475B1A66930D94&eid=A41D5AE06B0DB66D&journal_id=1001-3695&journal_name=计算机应用研究&referenced_num=0&reference_num=6