after pausing my project for over a year I am back on it.
I already built an eurorack module using a teensy to control an adau 1701 using i2c.
The dsp gets a signal which at the moment is split into three channels.
Each channel consits of a filter and a circuit that generates pulses as soon as the inout signal reaches a certain level (thank you so much bob for helping me with this, if you are interested I can send you a video showing the prototype playing my eurorack according to the input signal), I measured the delay between Signal peak and DSP output and I am around 1 ms if the level is set correctly which is supertight.
Now the signal gets split into three channels to allow different signals to be generated out of the source material which per channel passes a filter to make the channel react just on certain frequencies. My problem is that I cant get the control for the input level block right. Using a potentiometer and not an encoder (we go without display at the moment) it simply isn't possible to set the input level right. We tried linear as well as exponential, limited the pot to a certain range etc.
Now that it doesn't work that great (either you set the input signal to a level so the dsp will act on the bass or you set it to act on the highs, both isn't possible as the software block isn't controllable properly using i2c, I thought maybe I could just set the whole thing to react on bass of a proper leveled signal and use a limiter for the other channels to bring the signal up. Is there any way to make a limiterblock within the algorithm pull the signal up to a certain level regardless of the input signal? So if I go for thin hihats as the input filtered of the original signal there must be a strong boost, if I go for snare bodies the boost is less, if I go for bass there doesn't have to be a boost.
I am imagining it to work that way that I could maybe set the release time of the limiter (and maybe the threshold?) to be able to dial in the filtered signal causing a trigger. Is there such a thing as an auto normalize?
Thanks for helping