標題: VARIABLE FRAME RATE SPEECH CODING USING OPTIMAL INTERPOLATION
作者: CHUNG, CJ
CHEN, SH
電信工程研究所
電信研究中心
Institute of Communications Engineering
Center for Telecommunications Research
公開日期: 1-六月-1994
摘要: A VFR LPC vocoder using optimal interpolation is presented in this paper. In the encoder, some representative frames of an utterance are selected for transmission. In the decoder, LPC parameters of all untransmitted frames are restored by optimal interpolation. Simulation results show that this coding scheme outperforms the conventional VFR vocoder using linear interpolation. By incorporating contour quantization of gain and pitch information, a low variable-rate LPC vocoder is realized. An informal listening test shows that very high intelligible reconstructed speech was obtained at an average data rate of 300 bps.
URI: http://dx.doi.org/10.1109/26.293669
http://hdl.handle.net/11536/2477
ISSN: 0090-6778
DOI: 10.1109/26.293669
期刊: IEEE TRANSACTIONS ON COMMUNICATIONS
Volume: 42
Issue: 6
起始頁: 2215
結束頁: 2218
顯示於類別:期刊論文


文件中的檔案:

  1. A1994NU02800005.pdf