Audacity Forum

What are the advantages and disadvantages of variations in the above? Why Hann and not just a simple triangular window? You want the sum of the weights of samples from different windows to be always 1. The triangular window would do that. Is there any advantage in finer stepping than by half a width...

This is the first effect I have studied that follows this general procedure: Apply FFT to windows of sound. (In this case 2048 samples stepped by 1024, and using a rectangular window function.) Change frequency domain values. Do inverse FFT. Combine overlapping windows into a new signal. (Multiply e...

Steve, I recall you wrote some help in the wiki about finding good settings for noise removal, but I forget where that was.

The DC and the Nyquist frequencies are not correctly handled. I knew it from the code but I verified it too on a sample in the debugger. You must look at more code than what I quoted to see why that is. mRealFFTs (and array of arrays) is initialized to 0's in StartNewTrack. It is filled in at FillFi...

8) Is FinishTrack wasting time in case the user canccels?

1) ApplyFreqSmoothing is called in two places. The call from Cleanup is unreachable because mDoProfile is always false at that point. A mistake? 2) I understand why there is division by 20 calculating mNoiseAttenFactor. I understand why division is by 10 not 20 when computing mSensitivityFactor beca...

Who can help me understand this file? I see no names in it besides Dominic Mazzoni. A couple things puzzle me.

Did you make the dummy interface say Decay when you meant Release?

The existing graph thingy assumes upward compression and doesn't make the 1:1 slope really look like 1:1.

You know I use Audacity for speech, not music. I think I want shorter release times than 1 s. Speech doesn't have the tails to distort that percussive sounds have.

Another big ambition might be a compander that would plot a curve with two knees and three slopes.