《基于MATLAB的语音信号滤波设计与实现》由会员分享，可在线阅读，更多相关《基于MATLAB的语音信号滤波设计与实现（52页珍藏版）》请在金锄头文库上搜索。
1、 / I MATLAB Matlab , , , , Matlab Matlab MATLAB Word / : / II Design and Implementation of Speech Sounds Filter Based on MATLAB Abstract Language is the unique function of our mankind , it inherits and records humanity history for thousands of years. Our human civilization wouldn t exist today if no
2、 language. Speech is the most basic form of the language and the most important message for each other to communicate, which is the most important, effective, commonly used and the most convenient form for exchanging information. Speech signal processing is an important branch of information science
3、. The rapid development of large scale integrated technologyly and computer technology promote the development of this technology. It is an emerging discipline which is based on the study of speech signal processing. At the same time, it s a comprehensive multi-disciplinary field and involve a wide
4、range of disciplines, so the speech signal processing we are studying is significant. Matlab is a kind of computer application software which is powerful for data analysis and data processing, it can sound files transformation for discrete data files, then use its strong matrix capable of handling d
5、ata, such as digital filter, Fourier transform, time domain and frequency domain analysis, sound playback and various figure present etc, signal processing is an important application field of Matlab. This design was based on Matlab and finish the speech signal acquisition of digital filter, and the
6、n design for the collected voice signal to filter processing, analysis the characteristics of speech signal shows. And the acquisition of the speech signal to join different disturbed noises to join, the signal noise spectrum analysis of speech signal, aiming at the characteristics of the interferen
7、ce of the filter, designed different added a noise signal filtered, restore the original signal. The original speech signal, plus chirp voice signal and filter the signal after time transformation and frequency domain transform, draw their time domain waveform and frequency domain waveform graph, from visual Angle of comparative analysis filtering effect. Keywords Speech signal MATLAB digital filters noise / III 1 - 1 1.1 - -1 1.2 - -1 1.2.1 - -2 1.3 - 3 1.3.1 - -4 1.3.2 - 4 1.4 MATLAB - -5 2 - -6 2.1 - -6 2.2 - 6 2.3 - 8 2.4 - 9 2.5 - 10
