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取样定理

已知升余弦脉冲信号,用MATLAB编程实现该信号经冲激脉冲抽样后得到的抽样信号及其频谱(采用抽样间隔Ts=1时)。分析取样定理...

Mel into spectral coefficients

MFCC, Mel Cepstral coefficients extraction of speech signal. MFCC,Mel frequency Cepstral coefficients abbreviation. Mel came from the frequency is based on the human auditory system, and Hz frequency have a nonlinear relationship. Mel-frequency Cepstral coefficients (MFCC) is that the relationship b...

digital voice transmission

analog voice is converted into the digital format.it is used for voice transmission over wireless medium using infrared led with short distance...

Amplitude scaling of PWM speech data

Application backgroundWhen the codec for voice data entry and send, you can use this file provides functions for input and output of the PWM voice volume scaling of the data.Key TechnologyThe scaling of the amplitude of the PWM speech data is performed to achieve the purpose of scaling the codec inp...


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