含噪语音多路信号同步的研究

Synchronization of the noisy speech in multiple channels

提出了一种解决两路信号同步的方法．与单纯平衡信号的延迟相比，在具有一定长度混响时间的房间里，能够较为有效地抵消房间冲激响应的影响。实验结果证明，该方法在信噪比较低的情况下仍可以取得较好的效果；同步后的信号相加，几乎可以达到信噪比提高的极限。

The algorithms of the time-delay estimation of the sped signal in two channels are discussed and an adaptive method was presented in consideration of the room acoustical impulse response. It was proved to be a good method of synchronization by the experiments and a better result can be achieved by applying in speech enhancement.