【摘要】 为了在高噪声环境下得到较清晰的语音信息,对倒谱距离算法进行了改进,利用语音信号的倒谱向量判断语音端点信息。MATLAB仿真实验结果表明,在白噪声和汽车噪声环境下,信噪比分别为10 dB和15 dB时,得到的语音单字清晰度分别达到93%和95%,实现了90~100 dB高噪声环境下可靠的语音通信。更多还原

【Abstract】 In order to get speech communication as clear as possible under a high noise environment,a research on the improved algorithm about cepstrum distance was conducted to estimate the message of endpoint voice with speech cespstrum vectors.The experiments show that cepstrum distance method has high performance in background with high noise.Via MATLAB,under the environment of white noise and car noise,the accuracies of the single-word definition in the speech experiments are 93% and 95% for SNRs 10dB and 15dB,respectively.更多还原