Convolution
Hello!
I'd like to know how to implement a convolution in PD. More explicitly, I have a table with the coeficients of a FIR filter and I'd like to convolve this with audio samples coming from [adc~]. It's much like the [FIR~] external, but I'm not interested in using it.
que todos sejamos um
This patch isn't signed, I'm not sure who did it now, but anyway this is a realtime convolve
done by direct multiplication in the frequency domain and it uses [rfft~]. Not exactly fast and efficient. Run your impulse table as an input.
Use the Source.
Thank you! It's an interesting patch.
But, actually, I'd like something simpler. I'd like to know how to buffer the incoming sinal in a way that I can directly implement the formula for convolution:
(h*x)(m) = sum_{k=1}^200 h(k)x(m-k)
where 
n) is the buffered sinal and h(n) is the table containing the 200 filter coeficients.
How can I do it in PD?
que todos sejamos um
thia patch is a graphic eq that reads the spectral data from an array, you could maybe modify it to do what you want:
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