range of the frequency control input in AudioFilterStateVariable

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Angel

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I Would like to know what is the range of the frequency control input in the AudioFilterStateVariable?

and where is the filter control variable in the filter_variable.h/cpp code, since I don't see any input.

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I do not see it clearly,
Well, when we put an envelope in that input the range varies from 0 to 1 (float), but I don't see in line 90 the transform from the range 0 to 1 to an integer int16_t.
void AudioFilterStateVariable::update_variable(const int16_t *in, const int16_t *ctl, int16_t *lp, int16_t *bp, int16_t *hp)
 
Actually of what I understand the float value is never used between audio objects, float is not a good way of storing audio values because of its structure.
The floats are only used to make it easier for a user perspective view, when controlling gains an other percentage stuff.

That function is called from the update function line 205
 
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