Introduction - If you have any usage issues, please Google them yourself
The curriculum design is a section of a microphone speech signal acquisition and filtering of the speech signal de-noising processing. Curriculum design platform MATLAB7.1. Design steps: First, a section of speech signal acquisition and to observe its spectrum, and then the design of a Hamming window FIR filter, the final filtering of the signal. Signal during the filtering processing, to hear the voice signal after filtering and filtering obvious ago became clear, the basic design to achieve the purpose.