posted 09 September 2011 15:56            

What i would like to do is control Multiple !amp values of David McLean's modal filter with an lfo where each hot value would be added to the !amp parameter at different points of the modulating wavetable.

The default expression in the Amp parameter is:
{(1 to: 32) collect: [:i | !A suffix5: ((12 nn + (i -1 * 4) nn) hz removeUnits rounded)]}

so if the wavetable were a sine wave when the sound started !amp1 and !amp17 would have 0 added to it, !Amp 8 would have 1 added, !amp25 would have -1 added, !amps2-16 would be in the positive portion of the wave and !amp 18-31 else would be in the negative portion of the wave. (assuming the corresponding frequency of the Lfo) Then like a shift register each amp hot value would move take on the value of its neighbour behind. ad infinum.

2) I would also like to control the depth of the modulation, the frequency and the shape of the wave. The only way I could think of doing this is with an Lfo->Waveshaping function as the control source and then using:

a) 32 delay lines that are offset by 1/32 of the frequency of the modulator ( this is very cumbersome sollution)

b) creating a collect expression that uses one Lfo and scales its ouput by 1/32 of the range of -1 to 1. but the collect statement is a smalltalk statement and therefor needs a finite scaler and the lfo/waveshaping function is a range so i don't think the syntax / logic can work. i tested it when place inside the curly braces and kyma wont allow the statement.

c) the other sollutions i dreamt up need to access a wavetable at multiple points and i dont think this is possible.

any suggestions would be appreciated

thanks

posted 10 September 2011 16:10            

I think the "brute force" solution using the delay lines is the only way i'll get the desired result.

But I'm still curious if it is possible to have multiple sounds/Hot variables accessing different time points or values of a wavetable at the same time? This way I could code a looped expression that is a function of the counter.

thanks

rafe

posted 11 September 2011 10:05            

Not sure if this is what you are looking for?

posted 16 September 2011 13:06            

have fun at KISS!