1) acoustic echo cancellation
声回波对消
1.
Acoustic Echo Cancellation and Blind Speech Signal Separation along with the DSP Implementation;
声回波对消与语音盲信号分离及其DSP实现
2.
Research and DSP Implementation of Decorrelating NLMS with Variable Step Size Algorithm for Acoustic Echo Cancellation;
变步长解相关自适应声回波对消算法研究及其DSP实现
3.
Polynomial function and hard-clipping function are adopted to simulate the nonlinearity of the loudspeaker system, and the introduction of corresponding nonlinear pre-processing into the Normalized Least-Mean-Square (NLMS) algorithm of acoustic echo cancellation is proposed, thus to improve the effects of the acoustic echo cancellation.
考虑到扬声器的非线性特性,将实际房间声学系统模拟为一个无记忆非线性系统与一个动态线性系统相级联,并分别采用多项式函数和限幅函数模拟扬声器系统的非线性特性,通过在声回波对消的归一化最小均方算法中引入相应的非线性预处理,改善房间声回波对消的效果。
2) stereophonic acoustic echo cancellation
立体声回波对消
1.
In order to solve misalignment problem in stereophonic acoustic echo cancellation(SAEC),a nonlinear preprocessing solution based on frequency-shifting was proposed to reduce the correlation between the stereo signals and improve misalignment.
针对立体声回波对消器性能易受外部突发干扰影响的实际问题,提出一种干扰信号检测加最优滤波控制的抗噪方法,大大提高了回波对消器的抗干扰能力。
2.
There are some problems such as no unique solution,large misalignment in stereophonic acoustic echo cancellation(SAEC) caused by high correlation between stereo signals.
针对立体声回波对消中左右两声道的回波具有强相关性而导致自适应滤波器解不唯一、失配大等一系列问题,提出一种新的基于频移变换的去相关非线性预处理方法。
3.
Adaptive algorithms are applied to real-time stereophonic acoustic echo cancellation to improve the communication quality of teleconference.
将自适应算法应用于实时立体声回波对消,以提高电话会议的通信质量。
3) multi-channel acoustic echo cancellation
多路声回波对消
5) multichannel acoustic echo cancellation
多通道声回波对消
1.
Exploiting the method of direct-solution in multichannel acoustic echo cancellation;
对多通道声回波对消直接求解法的探索
6) adaptive echo canceller
自适应声回波对消器
1.
In an adaptive echo canceller,the detection algorithm able to distinguish echo pass change(EPC) from double-talk(DT) is vital to ensure that adaptive filter tap coefficients are updated in case of EPC and frozen during the DT period.
自适应声回波对消器中,可区分回波通道变化EPC(Echo Pass Change)和双端话音DT(Double-Talk)的检测算法非常重要,以确保自适应滤波器在EPC时更新权系数,在DT期间冻结权系数。
补充资料：对消法
分子式：
CAS号：
性质：又称对消法。一种测量电动势的方法。用一个外加可调的电势与待测电池电动势对抗，当调节至电路上无电流通过时，则两电势恰好对消(或称得到补偿)，此时的外加电势值即为所测电池的电动势。这是一种精确测量电势的常用方法。利用补偿法设计的仪器称电位差计。
CAS号：
性质：又称对消法。一种测量电动势的方法。用一个外加可调的电势与待测电池电动势对抗，当调节至电路上无电流通过时，则两电势恰好对消(或称得到补偿)，此时的外加电势值即为所测电池的电动势。这是一种精确测量电势的常用方法。利用补偿法设计的仪器称电位差计。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条