Seppo Ingalsuo

The work so far runs in testbench. It reads a wav file and outputs to raw binary file the MFCC data. A Matlab/Octave script is provided to parse the output...

The just pushed version ran successfully in my TGL-H test device. Used topology was sof-hda-generic-2ch-mfcc.tplg. Average load was quite decent 24 MCPS for 16 kHz mono MFCC computation, FFT size...

This version separated matrix, window and Mel frequency functions into separate generic library functions.

This version changes FFT to a new 16 bit version. It saves a lot of RAM with minimal impact to quality with 16 bit data. Since there's a lot to...

The just pushed version fixed a build issue with functions comp_update_buffer_consume/produce() those have changed names. No other changes. Also more recent versions of FFT library and window functions library are...

> Hi, Seppo > > For such a big feature, if people want to know the background, do we have a design document to explain the details? if not, I...

The just pushed version is without libraries and with minor updates. This should build OK when #6178 is merged. I will next address the review feedback for this component.

@btian1 I would like to make a demo ASR (limited to e.g. numbers recognize) with e.g. python libraries, run it in e.g. UP extreme or UP2 user space with MFCC...

The latest push contains code rebase after split of DCT library and some cleanup. Still work to do remains for supporting component test in testbench env. Main lib functions tests...

I pushed previously accidentally library patches duplicates, now fixed.