Hi,
I’m trying to use the "audioFeatureExtractor" and the MFCC function to get the MFCC data from an audio sample but noticed the coefficients are different. I´m assuming some default settings are different between these codes but cannot figure exactly what the difference is. Could you please help? Please find below a simple script to provide more detail. I’m comparing "MFCC1" MFCC2". I´ve tried several .wav and .m4a files but the MFCCs were never the same so I´m just using a generic "xxxxxxx" for file name.
[audioIn,fs] = audioread("xxxxxxx");
win1 = hamming(round(0.03*fs),"periodic");
win2 = round(0.015*fs);
aFE = audioFeatureExtractor(SampleRate=fs,Window=win1,OverlapLength=win2,mfcc=1);
features = extract(aFE,audioIn);
idx = info(aFE);
MFCC1 = features(:,idx.mfcc);
MFCC2 = mfcc(audioIn,fs,"LogEnergy","ignore","Window",win1,"Overlaplength",win2,"NumCoeffs",13);Hi,
I’m trying to use the "audioFeatureExtractor" and the MFCC function to get the MFCC data from an audio sample but noticed the coefficients are different. I´m assuming some default settings are different between these codes but cannot figure exactly what the difference is. Could you please help? Please find below a simple script to provide more detail. I’m comparing "MFCC1" MFCC2". I´ve tried several .wav and .m4a files but the MFCCs were never the same so I´m just using a generic "xxxxxxx" for file name.
[audioIn,fs] = audioread("xxxxxxx");
win1 = hamming(round(0.03*fs),"periodic");
win2 = round(0.015*fs);
aFE = audioFeatureExtractor(SampleRate=fs,Window=win1,OverlapLength=win2,mfcc=1);
features = extract(aFE,audioIn);
idx = info(aFE);
MFCC1 = features(:,idx.mfcc);
MFCC2 = mfcc(audioIn,fs,"LogEnergy","ignore","Window",win1,"Overlaplength",win2,"NumCoeffs",13); Hi,
I’m trying to use the "audioFeatureExtractor" and the MFCC function to get the MFCC data from an audio sample but noticed the coefficients are different. I´m assuming some default settings are different between these codes but cannot figure exactly what the difference is. Could you please help? Please find below a simple script to provide more detail. I’m comparing "MFCC1" MFCC2". I´ve tried several .wav and .m4a files but the MFCCs were never the same so I´m just using a generic "xxxxxxx" for file name.
[audioIn,fs] = audioread("xxxxxxx");
win1 = hamming(round(0.03*fs),"periodic");
win2 = round(0.015*fs);
aFE = audioFeatureExtractor(SampleRate=fs,Window=win1,OverlapLength=win2,mfcc=1);
features = extract(aFE,audioIn);
idx = info(aFE);
MFCC1 = features(:,idx.mfcc);
MFCC2 = mfcc(audioIn,fs,"LogEnergy","ignore","Window",win1,"Overlaplength",win2,"NumCoeffs",13); mfcc, audiofeatureextractor MATLAB Answers — New Questions

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