%0 Journal Article
%T Implementation of the 800/920/1200bps Modified Multi-band Excitation Speech Coder Based on DSP Processor<br>800/920/1200bps改进型多带激励语音编码器的DSP实现
%A Wang Du-sheng
%A <br>王都生
%J 电子与信息学报
%D 2007
%I 
%X An 800/920/1200bps modified speech coder based on the Multi-Band Excitation (MBE) speech model is presented. The two stage discrete cosine transformation coding scheme has been used to quantize the spectral magnitude parameters changing frame-by-frame adaptively in the speech coder. The coded bit rate of speech is largely reduced and that make it possible the implementation of 800~1200bps MBE speech coder. This paper focuses on the design of two stage discrete cosine transformation coding scheme and hardware implementation based on DSP processor.
%K Speech coding
%K Multi-band excitation
%K Discrete cosine transformation<br>语音编码
%K 多带激励
%K 离散余弦变换
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=F15323711A3A81B0&yid=A732AF04DDA03BB3&vid=771469D9D58C34FF&iid=94C357A881DFC066&sid=2D52C01434B71375&eid=8DABBEB130EFF191&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=8