[Audacity-devel] New transcription toolbar functions
A free multi-track audio editor and recorder
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From: Shane M. <smu...@ob...> - 2004-12-17 14:56:42
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For the curious, I have added two new functions to the transcription toolbar: "select sound" and "select silence". These extend the selection to the region of silence/sound surrounding the current selection. Its intended use is: click on a sound; hit the button; the entire 'word' is now selected. I think this would be really cool if it were bound directly to double-clicking, very analogous to how an entire word gets selected if you double-click on it in a word processor; but that would probably require a smarter sound/silence detector than I currently have, like one that doesn't need to be calibrated to noise. I would actually like to make the sound/silence detector selectable, and have numerous different versions. I know people have used cepstrum for this, and I imagine that a really cool one would use the pitch detection: the change is something like the cosine of the angle between the autocorrelation vectors at any two points. This could be a good way of picking out sounds in continuous audio situations. Some type of fourier-domain analysis akin to the noise remover would also be nice to have. If anyone has interests/skills in this area (and there are a bunch of free software libraries that do things like this already), it would be great to try out some different things. Stm... |