WAVEFORM SIMILARITY OVER-AND-ADD TECHNIQUE WITH GAIN CONTGROL

摘要：

In this paper, we propose a new method of Timescale modification (TSM) of audio signal. In the proposed GWSOLA algorithm, we introduce the gain control into the standard WSOLA technique which could adjust the level of the audio segments for overlap and add in order to maintain the audio signal level consistent. We perform a time-scale modification (TSM) using a waveform similarity overlap-add (WSOLA) technique with gain control (GWSOLA) to reconstruct the audio signal of the lost frames. Our research shows that after introducing the gain control into the standard WSOLA technique, the quality of the reconstructed audio signal is higher than that of the standard WSOLA technique.

关键词： PLC WSOLA VoIP gain TSM GWSOLA

作者: Wang Lizhong Wu Muqing Li Mojia

作者单位: Broadband Communication Networks Lab Beijing University of Posts and Telecommunications, Beijing, China

会议类型: 国际会议

会议名称: 2009 2nd IEEE International Conference on Broadband Network & Multimedia Technology(2009年宽带网络与多媒体国际会议 IEEE IC-BNMT2009)

会议地点: 北京

会议语种:英文

页码: 735-739

在线出版日期: 2009-10-18（万方平台首次上网日期，不代表论文的发表时间）