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  • There are multiple speakers.
  • Each speaker generates multiple MFCC.
  • If I'm getting two different MFCC, can we know if those MFCC came from 2 different speakers or same speaker ?

How can we compare them and check this ?

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  • You can find the distance between the MFCC features for different speakers. The distance should be zero for the same speaker and larger with different speakers.
  • You can use different types of distance functions or even similarity functions used generally to compare between probability density functions.
  • Also, corresponding to each speaker you should generate a single matrix of MFCC coefficients which is composed of multiple coefficients for each frame. So, the output MFCC should be of dimension: (number of frames, number of coefficients).
  • Every speaker's MFCC dimension should be the same to compare them.
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  • $\begingroup$ I look on 2 different MFCC matrix of same speaker, and the values are different. so we need more sophisticated way to compare $\endgroup$
    – Boom
    Dec 13 '20 at 13:05
  • $\begingroup$ Was both of them obtained from the same audio recording? $\endgroup$
    – Aaquila
    Dec 14 '20 at 18:47
  • $\begingroup$ Usually, these features change with the words and the way u speak so essentially unless it is the same recording it may not be same. $\endgroup$
    – Aaquila
    Dec 14 '20 at 18:48

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