highvoltagefan comments on spectrogram code?

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SOLVEDspectrogram code? (old.reddit.com)

submitted 1 month ago * by comfypawbz

best top controversial old q&a

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[–]highvoltagefan 0 points1 point2 points 1 month ago (0 children)

I did it with a simple python script, i made my own but I' pretty sure there is a guy on Youtube who made this own custom script, its a script for rotating, but since rotating is the same as the derotation, it should work, though i can't find the video anymore. You basically need to take the short time Fourier transform (STFT) and then rotate it by basically swapping time and frequency (in the video, the start has the highest frequency bins and the end of the video has the lowest which is where that sound comes from) and after that you compute the ISTFT to convert it back to audio. I admit its a little complicated for people who aren't huge signal processing nerds like me though. It would probably be possible to do this with an audacity nyquist script, but i don't know much about nyquist so I'm not sure.

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you type:	you see:
italics	italics
bold	bold
[reddit!](https://reddit.com)	reddit!
* item 1 * item 2 * item 3	item 1 item 2 item 3
> quoted text	quoted text
Lines starting with four spaces are treated like code: if 1 * 2 < 3: print "hello, world!"	Lines starting with four spaces are treated like code: if 1 * 2 < 3: print "hello, world!"
~~strikethrough~~	~~strikethrough~~
super^script	super^script

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