Audacity Forum

I guess I'd better give you the bad news :( (not that bad really :D) The default options that are set in Audacity are to use the system default sound settings, which these days generally means PulseAudio. That's great, if it works. PulseAudio allows multiple programs to share an audio device. It pro...

was thinking of a very simple, massively common (and therefore cheap as chips, ha ha) solid state device that would be completely self-contained, requiring no contact with the outside world or external services of any kind, that would simply make a timing mark on a video recording (a flash perhaps?...

That's what a "word clock" is for: http://en.wikipedia.org/wiki/Word_clock

1) Select the part of the track with the voice: http://manual.audacityteam.org/o/man/audacity_selection.html 2) "Edit > Remove audio or labels > Split Delete" This will leave a "hole" in the audio where the voice was. 3) Select a part of the track with running water sound. Hopefu...

Of course the 20kHz carrier is too high to be heard (maybe my headphones can not even produce it) Headphones should be able to produce up to 20 kHz, but you're right, if they can't then the 20 kHz carrier will effectively be filtered out before it even gets into the listener's ears. Then again, wha...

Thanks for the excellent demodulator, it produced a very good quality sound even though I have not changed any cf value, but just pasted the unchanged code into the nyquist prompt and run it. To change the cf to 15500 would you have to add the following line to the top of the code? Actually, I (acc...

Check the recording and playback levels in the Windows Sound Control Panel.

Log out of your computer, then back in again, then, without opening any other programs (not even your web browser), launch Audacity.
In the device toolbar, set the recording input and playback output devices to the "hw 0,0" option. Then try playing something. What happens?

There is also a limiter available on our wiki: http://wiki.audacityteam.org/wiki/Nyqui ... er_.282.29
This plug-in is cross-platform (Windows, Mac OS X and Linux).
Instructions for installing: http://wiki.audacityteam.org/wiki/Downl ... g_Plug-ins

A bit about limiters, since this has come up. (apologies to MichloIW if I was the one that "left you dangling" - this thread is progressing so fast that I don't like to interrupt ;)) Typically, a good, raw (unprocessed) voice recording will have a peak level of around -6 dB. (We recommend ...