Audacity Forum

Thanks! I see you simply apply eq-band repeatedly for each of the data points of the "curve." I was thinking of writing exactly that for myself but I didn't know if what the graphic equalization tool does is something different and better mathematically. For now I am stepping frequencies linearly wh...

steve, I think I recognize the deesser code you shared in your desciption. This is different. Think of the clicks I am trying to fix as certain tall and thin rectangles in the spectrogram. I fix each with a band stop by summing results of high and low pass filters with cutoffs dependent on the top a...

Thanks, but I have no idea what any of that means! I'm talking about a Nyquist programming problem.

I hope you say that as a general rule and not a complaint about this code in particular I tried to comment a lot as I wrote it.

Perhaps I should post two files, a library function, and a complete Analyzer plug in using it but doing the detection and labelling only? That would encourage people to play with it before adapting it.

Suppose I have a sound s, an effect f, and a crossfading envelope e. Defining g(s) as f(s) - s, then I add this to f: e * g(s) Suppose I want to apply two successive effects on overlapping intervals with crossfading. I imagine band stops with passbands well separated.The obvious is to add e2 * g2( s...

steve, should I extract the detection part as a "library function" and put it on the plug ins board, even though it is not a complete effect? I do think this part of the work is more stable. I have no more ideas I want to try, except perhaps stepping the test frequencies logarithmically as an option...

I suppose I posted a scary face picture up there without intending to. Happy Halloween!

I think we have described the essentials of the problem. I have nothing to add.

In case you are wondering about the meaning of labels. Identify blocks in which the ratios of the peak amplitude of the test frequency component to that in each of the neighboring blocks, expressed in dB, exceeds the "relative" threshold, and in which the amplitude also exceeds the (default -50 dB) ...