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Speech signals pitch detection
no vote
For pitch detection of speech for Chinese speech, from a transcript from a male and a female, are "everyone is speaking Mandarin." Analog voice with 100~3400 band pass filter to 8kHz digital sampling rate. Take the frame length of 20ms, namely, frames up to 160 samples, fundamental frequency detection range for 70~400Hz, namely pitch for 20~114 sampling points. Because of time-varying pitch and pitch is difficult to determine the truth value, which limits an objective error criterion to assess the pros and cons of a pitch detection system. Commonly used frame-by-frame analysis of methods to determine the fundamental frequency estimation with clear/cloud judgment, waveform analysis shows that the normalized cross-correlation function method in noisy environments, do to the pronunciation test sentences above fundamental frequency estimation with qingzhuo sentence basically no errors
yueyue_5207
2016-08-23
0
1
LBG vector quantization training methods
no vote
Training methods of speech signal using the LBG and realize on feature clustering of the AR field, make the code book. Codebook size, dimensions, distortion limits can be adjusted. Smaller error of reconstruction of the original signal can be used.
yueyue_5207
2016-08-23
0
1
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