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3 Commits (f74b040be053ab7f357149aa807d9d3d8715507f)

Author SHA1 Message Date
Christophe Favergeon 8092cc61f9 CMSIS-DSP: New MFCC Q15 and Q31 
arm_cmplx_mag_q15 reworked to be more accurate but less efficient.

New function arm_cmplx_mag_fast_q15 introduced to retain previous
(less accurate) but faster behavior.

Improvement to Python wrapper to support the new functions.
 4 years ago
Christophe Favergeon 8fb55a90b7 CMSIS-DSP: Added MFCC F16 
This first version is not very accurate due to problems with the log.
A coming commit will improve the log accuracy.

Issues #1305 and #1304 also corrected as part of this commit.
 4 years ago
Christophe Favergeon 3d264cfabb CMSIS-DSP: MFCC F32 
MFCC F32 implementation
MFCC F32 tests
MFCC F32 in Python wrapper
Python wrapper structure updated to support submodule like
cmsisdsp.mfcc and cmsisdsp.fixedpoint
PythonWrapper tests updated to use the new fixedpoint
cmsisdsp.mfcc is used to generate the mel filter, dct and window coefficients.
 4 years ago