A PACKET LOSS CONCEALMENT METHOD BASE ON GWSOLA ALGORITHM AND SIGNIFICATION TRANSIENT DETECTD

摘要：

We present a new packet loss concealment method based on time-scale modification (TSM) of voice signal. We introduce the gain control into the WSOLA technique and we called it GWSOLA. GWSOLA method can reconstruct the voice signal of the lost frames. We also present two detection methods that can classify the whether lost frame is location at the voice signification transmit(VST) section or not, and then use different gain to reconstruct the lost frame. By applying these techniques, we can reduce quality degradation of the decoded speech. Mean Opinion Score (MOS) show that these proposed methods superior to the traditional WSOLA algorithm.

关键词： WSOLA PLC gain VoIP TSM GWSOLA Voice Signification Transmit(VST)

作者: Lizhong Wang Muqing Wu Mojia Li Lulu Wei

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 IEEE International Conference on Network Infrastructure and Digital Content(2009年IEEE网络基础设施与数字内容国际会议 IEEE IC-NIDC2009)

会议地点: 北京

会议语种:英文

页码: 745-749

在线出版日期: 2009-11-06（万方平台首次上网日期，不代表论文的发表时间）