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Vocalization analysis
Posted: Wed Mar 31, 2010 8:03 pm
by lily
To anyone who could maybe help. Reading most of these posts it seems clear to me that I am kind of out of my league. I work with animals and am interested in measuring animal vocalizations - I am interested in finding differences in frequencies between animals and treatment groups in my research. Is Audacity useful for analyzing vocalizations? It seems to have a lot of features but I was curious to hear some comments about its capacities to scientifically analyze sound. If I am looking at the wrong kind of software is there anything you can think of that would work better?
Thank you for all of your help!
Re: Vocalization analysis
Posted: Wed Mar 31, 2010 8:20 pm
by steve
You can do some basic frequency analysis in Audacity using "Analyze menu > Plot Spectrum". This feature is much improved in the current 1.3 version of Audacity.
Audacity also has partial support for VAMP, plug-ins, though I have not used these.
http://vamp-plugins.org/
For more advanced scientific analysis, have a look at:
WaveSurfer
http://www.speech.kth.se/wavesurfer/
Praat
http://www.fon.hum.uva.nl/praat/
Vamp plugins
http://vamp-plugins.org/
Re: Vocalization analysis
Posted: Wed Mar 31, 2010 10:30 pm
by Trebor
stevethefiddle wrote:You can do some basic frequency analysis in Audacity using "Analyze menu > Plot Spectrum".
This feature is much improved in the current 1.3 version of Audacity.
Bear in mind that the frequency analysis in Audacity 1.3.11 can only process about 4 minutes maximum.
So probably not a long enough to analyse monkey howling, rat squeaking, (as you'd want to look at hours/days worth of data).
Re: Vocalization analysis
Posted: Thu Apr 01, 2010 12:25 am
by steve
Trebor wrote:Bear in mind that the frequency analysis in Audacity 1.3.11 can only process about 4 minutes maximum.
Yes, but the "Spectrum View" in the track drop down menu can show a continuous spectrum for the entire track.
Also, the sound activated recording could be useful.
Re: Vocalization analysis
Posted: Sun Apr 04, 2010 1:47 am
by lily
Thanks everyone!!! I'm going to check those other sites and see what I can do. I will let you know what I decide to do....................More questions may follow.