首页>
外国专利>
Method and apparatus for the detection and suppression of echo in packet based communication networks using frame energy estimation
Method and apparatus for the detection and suppression of echo in packet based communication networks using frame energy estimation
展开▼
机译:使用帧能量估计在基于分组的通信网络中检测和抑制回声的方法和装置
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method and apparatus for use in suppressing acoustic echo in a target speech signal being transmitted through a packet-based communications network uses frame energy estimation applied to the target speech signal and to a reference speech signal. The method or apparatus estimates one or more reference speech energy levels in one or more reference packets based on one or more of the speech parameters generated by the speech encoding of the reference signal; estimates a target speech energy level in a target packet based on one or more of the speech parameters generated by the speech encoding of the target signal; compares the target speech energy level to one or more reference speech energy levels; and detects an echo in the target speech signal based on the comparison of the target speech energy level to the one or more reference speech energy levels.
展开▼