CODEWITHSUNDEEP
speech-recognitionaudio-processingmfcc
yasser
yasser

Reputation: 31

How to obtain Mel Filterbank?

What is the logic behind the calculation of Mel filterbank? Is there any good example for it ? I could not find any good example on internet.

Upvotes: 0

Views: 8855

Answers (1)

Thilina Dissanayake
Thilina Dissanayake

Reputation: 333

You can find a really nice tutorial on how to obtain Mel filter banks here.

In general, we use Mel filter banks for two main reasons.

  • The Mel scale aim to mimic non-linear human ear perception of sound. Human ears are more discriminative at lower frequencies and less discriminative at higher frequencies. Mel filter banks do exactly that by giving a better resolution at low frequencies and less at high.
  • Triangular filter banks help to capture the energy at each critical frequency band and roughly approximates the spectrum shape. This also helps to smooth the harmonic structure.

Filter bank on a Mel scale

Upvotes: 6

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