[Audacity-devel] Analysing ultrasound recordings with Audacity
A free multi-track audio editor and recorder
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From: Thor A. <ta...@to...> - 2011-04-27 16:35:56
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Hi all. First of all, thank you very much for this great software. I've recently been analysing ultrasound recordings with Audacity, and I have some, hopefully useful, suggestions/comments. Comments with preliminary patches ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ o In my experience, the name of the time/frequency plot is named 'Spectrogram' or 'Oscillogram' and not, as it is now, 'Spectrum'. I'm referring here to the 'Trackpanel' and 'Preferences->Tracks'. Maybe this needs to be done differently? o The 'Maximum frequency' in 'Preferences->Spectrograms' shouldn't be capped at 100 KHz, attached patch sets it at 10 MHz. Maybe the cap should be removed? o Add more FFT window sizes. My patch causes a segfault when zooming out on the frequency axis of the spectrogram, this is also the case when enabling EXPERIMENTAL_FIND_NOTES. Not sure how to fix. Steps to reproduce: 1. Open porpoise_clicks. 2. Switch to spectrogram view. 3. Change window size to > 8192. 4. Zoom out on the frequency axis. Feature requests ~~~~~~~~~~~~~~~~ I've added a couple of feature requests to the wiki [1], which I didn't have time and skills to implement, will have a look at it again when I have time. [1] http://wiki.audacityteam.org/wiki/Use_Cases#Wildlife -- best regards Thor Andreassen |