I’m building a plugin of a wavefolder with some complex logarithmic, exponential and lambert w functions (which I have obviously fast-approximated). It consists on some folding stages and a tanh at the output of the DSP processing chain. I have two parameters, one is the amount of folding and the other is a dc offset that is added at the input. The problem is that this dc offset at the input generates a (not audible) dc offset at the output when there is no signal at the input. When I have audio signal at the input, I don’t get troubles.
So I’d like to ask if there is a best practice to manage this problem.
I have two ideas in my mind, that probably could sound too brutal:
- Bypass the entire wavefolder processing if there is no signal at the input (I was thinking about the getRMSlevel method)
- Apply an high pass filter at the output with a zero at a very low frequency
What do you suggest me? Is there another better solution?
Thank you so much!