Experimental results have shown that this method provides speech of better clearness and intelligibility than conventional methods do 取得了较好的实验结果，增强后的语音信号信噪比比频谱减法有更高的清晰度和可懂度。
In the presence of additive white gaussian noise , an adaptive wavelet - based de - noising algorithm for speech enhancement applications is proposed 针对加性高斯白噪声的情况，提出一种自适应小波降噪算法，用于语音信号的增强。
A new speech detection method using the mlp neural network is studied , including the structure of mlp nn and bp learning algorithm 包括对mlp网络结构和bp学习算法的介绍，并将该方法应用于不同干扰条件下语音信号的起点检测。
The ip phone codec carry out the tasks of collecting and playing - back of speech signal , and asynchronous communication with pc ' s serial port , etc 该ip电话编解码器实现了语音信号的采集、回放、与计算机的串口异步通信等功能。
Experimental results show that the performance of speaker recognition system is improved with the processed speech signal in the noise environments 实验证明，经过降噪处理的语音信号送入说话人识别系统，提高了系统的识别险能。
With the directsound technology , an important part of directx 8 . 0 , the capturing and playback of speech is achieved 本方案实现时采用microsoft公司的新版本directx8 . 0中的directsound技术，实现了语音信号的捕获与回放；采用g
Chapter 1 presents the transmission and reception system of the speech signal and then introduces the generation model of the digital speech signal 论文第一章介绍语音信号的产生和接收过程，并给出语音信号离散时域的产生模型。
It is followed by digital sampling , windowing , noise filtering , endpoint detection , time - domain vector and transform - domain vector 内容涉及语音信号的数字化、加窗处理、预加重滤波、端点检测，及时域特征向量和变换域特征向量。
Procedures for simultaneous transmission of data and digitally encoded voice signals over the pstn or over 2 - wire leased point - to - point telephone type circuits 在pstn或二线点对点租用电话型电路上同时传送数据和数字化编码语音信号的规程
Hfc applies the sub - carrier fdm technology , with video , data and voice signals simultaneously transmitted on the coaxial cable via the modem Hfc采用副载波频分复用方式，各种图像、数据和语音信号通过调制解调器同时在同轴电缆上传输。
