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- MFCC
- ====
- .. highlight:: python
- .. autofunction:: cmsisdsp.mfcc.frequencyToMelSpace
- .. autofunction:: cmsisdsp.mfcc.melSpaceToFrequency
- MEL filters are represented as 3 arrays to encode a sparse matrix.
- .. autofunction:: cmsisdsp.mfcc.melFilterMatrix
- The API is returning a tuple::
-
- (filterLength,filterPos,PackedCoefficients)
- The first argument is the list of MEL filter lengths.
- The second argument is the position of the first coefficient of the filter in the list of coefficients,
- The last argument is the concatenated list of all filter coefficients.
- .. autofunction:: cmsisdsp.mfcc.dctMatrix
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