Exporting Data to a Text File

[dhorns]

Is there any way to export data to a text file as both a function of frequency and time? I would like to do some analysis with a different program, and would like to do it for different frequencies.

If this is way too vague, I'm sorry. This is my first post to this forum and I'll happily elaborate if need be.

[steve]

Yes that's a bit vague
What's the details of the job?

[dhorns]

Thanks for the quick response.

I'm using Audacity to analyze the sound of a starter pistol shot in two different rooms for a class I'm teaching on acoustics. I'd like to use a separate program (something called ROOT developed at CERN) to analyze the reverb time for different frequencies.

Of course, if there is an easy way to do it in Audacity, then please let me know!

[steve]

The easiest way that I can think of would be to make multiple copies of the recording and apply a narrow band-pass filter to each copy.
I'm not sure if there's ready made plug-in for band pass filtering, but if not you can create the same effect by applying a high-pass filter at the lower cut-off frequency and a low-pass filter at the upper cut-off.

There's an experimental plug-in in this topic that will print out sample values to a file. http://forum.audacityteam.org/viewtopic ... 42&t=34365

[dhorns]

Thanks. That should work. I'm going to try it out.