Oh, thank you so much, it works perfectly at 40khz and 4 Voices!!!! 8)
I have to check the final waveform if its good and the resolution of the fine-tune, but I understood what you did, and I agree with the math, should work.
I was googling like nuts on float to int differences, I know what each is, but to be honest, I never converted a float to int code before, this is the first time. I'm impressed on how simple that is, thanks again!
My project is open-source, so as soon as I have it ready, I will post videos and info here at the forum. 8)
Wk