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  1. MFCC - Significance of number of features - Signal Processing Stack ...

    Feb 17, 2016 · 4 I have been doing some readings on the computation of Mel-Frequency Cepstral Coefficients (MFCC) and further use of Vector Quantizers (VQ) for recognition purposes. I am …

  2. MFCC calculation - Signal Processing Stack Exchange

    Where is the my mistake in calculation? Cheers! Celdor EDIT: I understand now why the first MFCC coeficient is very low. If I look at DCT II, its first component is just a straight line: This is equivalent of …

  3. What's the correct graphical interpretation of a series of MFCC vectors?

    I'm studying speech-recognition, in particular the use of MFCC for feature extraction. All examples I've found online tend to graph a series of MFCC extracted from a particular utterance as follows (

  4. What is the purpose of the log when computing the MFCC?

    The steps of computing the Mel-Frequency Cepstrum Coefficients (MFCC) are: Frame blocking -> Windowing-> abs(DFT) -> Mel filter bank-> Sum coefficients for each filter-> Logarithm -> DCT But …

  5. Using MFCC in spoken words recognition - Signal Processing Stack …

    May 10, 2013 · We're trying to implement a "simple" speech recognition application in MATLAB (isolated words from a very limited dictionary). We've been trying the following methods: Extract MFCC …

  6. Understanding MFCC - Signal Processing Stack Exchange

    Jul 23, 2020 · MFCC is represented by 39 values for each window frame. 12 values are the mel filter-bank and we get 13th value by taking DCT [ Is this right ]? So rest are the delta and double delta and …

  7. discrete signals - Confusion with regards to STFT and MFCCs - Signal ...

    K$ sub-bands, (rows). MFCC: Once you have the STFT computed, you can go ahead and use that as a stepping stone for computing the MFCC's. Regarding your question, you seem to be confusing the …

  8. How to calculate MFCCs over a narrow frequency range?

    However, my MFCC matrix outputs as a bunch of NaNs, presumably because the range is so narrow. This either means that MFCCs are an inappropriate measure in general for such a narrow frequency …

  9. filters - Signal Processing Stack Exchange

    Jan 29, 2020 · In the book here, they apply liftering, as a final step of MFCCs features extraction, to isolate the system component by multiplying the whole cepstrum by a rectangular window centred on …

  10. Sinusoidal liftering in implementations of MFCC

    Jan 3, 2017 · Some implementations of MFCC apply sinusoidal liftering as the final step in calculations of MFCC. It is claimed that speech recognition can be significantly improved. For instance, if …