This is the last opcode to be categorized but am not sure where. 
It takes in an audio signal, does fft work on it and calculates the center frequency (pitch) from that. 
Is it convolution? Or a Array-based spectral opcode? or both?

It’s a signal analysis opcode, so you could put it together with rms etc, and/or with the pitch trackers.
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Prof. Victor Lazzarini
Maynooth University
Ireland

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> This is the last opcode to be categorized but am not sure where.
> It takes in an audio signal, does fft work on it and calculates the center frequency (pitch) from that.
> Is it convolution? Or a Array-based spectral opcode? or both?