Convert audio signal to MFCC

vvvv beta question
1

Hiya,

Is it possible to convert an audio signal (either live microphone input or pre-recorded files) to mel frequency coefficients (MFCC) in vvvv? I would like to extract 13 MFCCs and send them via OSC to Wekinator for some simple AI speech recognition.

There’s an openFrameworks example for this on the Wekinator website (http://www.wekinator.org/examples/#Audio) but I’d much prefer to have a vvvv patch that handles the conversion. Anyone here tried this before?

2

If you have basic coding skills it should be relatively easy to get it using this library:
http://accord-framework.net/docs/html/T_Accord_Audio_MelFrequencyCepstrumCoefficient.htm

You can implement that for vaudio or try the VL.NewAudio contribution.

3

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