An Adaptive Variable Low Bit Rate Multi-Band Excitation Speech Coder

摘要：

An adaptive variable rate speech coder based on the multi-band excitation (MBE) speech model is presented. The traditional MBE analysis and synthesis methods are employed and the two stage discrete cosine transformation schemes have been designed to encode the spectral envelope parameters in the speech coder. The scheme can adaptively and dynamically quantize the spectral envelope parameters which changed from frame to frame according to requested coding rate. This paper focuses on the design and implementation of two stage discrete cosine transformation coding scheme for 800/1200/2400bps coding rates.

作者: Dusheng WANG Lizhong LI Jiankang ZHANG

作者单位: Dalian Nationalities University, China Xidian University, China

会议类型: 国际会议

会议名称: 2nd IEEE Conference on Industrial Electronics and Applications(ICIEA 2007)(第二届IEEE工业电子与应用国际会议)

会议地点: 哈尔滨

会议语种:英文

在线出版日期: 2007-05-23（万方平台首次上网日期，不代表论文的发表时间）