Audacity Forum

Okay, so you're waaay ahead of me. Awesome.

Yeah, that code works great. Memory usage is a bit of a nailbiter near the end, but nothing crashes. I threw in a MAX to keep the voiceover from cutting out entirely when the main mix is silent, and the result is perfect. Thanks!

Thanks, I'll give that a try. It occurs to me that I could duplicate the mix and drop its sample rate to something totally unreasonable, just to conserve memory in the scratch space.

(something like:) FALLOFF_SPEED = 0.2 SAMPLE_RATE = 44100 alpha = exp(-FALLOFF_SPEED*SAMPLE_RATE) cur_mean_squared = control_samples[0] for control, in, out in control_samples, in_samples, output_samples: cur_mean_squared = (1-alpha) * cur_mean_squared + alpha * control*control rms = sqrt(cur_mean_s...

I suppose I'd get a mono mix of the original mix, find its amplitude as a signal, apply a low-pass filter to that, and use the result to modulate the voiceover. Seems straightforward enough as a set of equations, but I don't know how to do it within Audacity. I see that there's support for arbitrary...

I have an existing multichannel mix with pretty big dynamic range, and a voiceover track. I'd like to mix the voiceover with the original mix and have it be understandable. Ordinarily I'd use ducking, but I'm trying to change the original mix as little as possible, so instead I'd like a sort of reve...