Audacity Forum

geekgirl, if you wish to add or update information in your posts, please post the update as a new reply. If you jut edit a previous post we don't know what you have updated or if you require more help or if the problem is resolved.

geekgirl wrote:Can I record from the web/internet/firefox to Audacity without using external speakers?

If your sound card drivers have an option for recording "Stereo Mix" then you can do it that way. See here: http://wiki.audacityteam.org/wiki/Mixer ... _Issues#cp

What operating system are you using?
Could you copy and paste the output from the Audacity "Help menu > Audio Device Info..."

Look in the Device Toolbar. Does the "Input Channels" selector allow you to select 4 channels?

@steve: Do we have somewhere a prefabricated framework for writing a text file in the user's HOME directory? Not yet. I've got close to completing one but the task is complicated by platform dependent file naming rules, particularly Windows weirdness. (Did you know that Windows handles the file sep...

OK, here's an example for writing to a file. Note that this example was written to run on Linux. (setq outfile "/home/<username>/Desktop/output.csv") (setf s (rms s 20)) (setq maxvalues ny:all) (setq f (open outfile :direction :output)) (dotimes (num (snd-length s maxvalues)) (format f &qu...

I've just read Edgar's reply. Almost identical solutions :D Just to clarify one difference in the detail: To display the RMS value of an Audacity stereo audio track (like the signal in your WAV file) in the same audio track, use this code instead: (force-srate *sound-srate* (multichan-expand #'rms s...

b)in a table (e.g. Excel) , time/intensity With a window size of 50 ms there will be 20 values per second of audio, 1200 per minute. For short audio tracks we can output a few hundred samples to the Nyquist Prompt debug window. Obviously this gets a bit impractical for long tracks. The following co...

and then display the resulting curve(s) The easiest way to see the curves is to just zoom in to fit the waveform to the screen. If you want to see it on the same time scale as the original audio it will be necessary to resample the rms output to the track sample rate. (force-srate *sound-srate* (rm...

The easiest way to run simple Nyquist commands is in the "Nyquist Prompt" effect (Effect menu). Many Nyquist commands work on just one audio channel at a time, so it is often convenient to split stereo tracks into mono. To do that, click on the track name and select "Split Stereo to M...