Audacity Forum

but how do you measure the floor/background noise, in terms of decibels so you can set the "noise floor" on the compressor accordingly? Select a section containing the loudest background noise. Go to the Effect menu and select "Amplify". If the noise level is greater or equal to...

It may be possible for a plug-in to be developed that is able to read and decode those time codes and create labels that contain the decoded information. I would expect it to be a complex task and would require a detailed knowledge of the encoding. Are you a programmer? Do you have detailed knowledg...

The "noise floor" setting I'm not clear on though, I'm not surprised, it's a bit weird and complicated ;) Basically, the compressor pushes up the volume of low and medium level audio, and "squashes" the high level audio, so the low and medium level audio gets louder, but the lou...

Allen313 wrote:On the left channel time of day is recorded

How? Do you mean that in the left channel you have recorded yourself saying "3:25 PM" and suchlike?

The Audacity Compressor effect will probably work quite well with the right settings.

Use "Compress based on peaks".
Try settings similar to this:

if you'd applied the code to a music track, it would have played the music at half speed and one octave deeper That is not happening here. On my machine, when applied to an audio track your code is playing the audio at double speed and one octave higher. The problem with playback from Nyquist on my...

I was not able to find any documentation on "snd-play-autonorm" but I checked using "snd-play" (prog1 (setf s (lp s 2000)) ; doing 'something' to check that it works (s-save (force-srate *sound-srate* s) ny:all "" :play t)) Again this works some of the time on this mach...

How about as a first step writing a proposal in the Wiki with mockup GUI etc. (as this thread is getting harder to follow) ? A mock-up GUI is not very useful for blind and partially sighted users. There is a concurrent discussion about text envelope on Audacity4Blind. I'll merge the information int...

See here: http://wiki.audacityteam.org/wiki/Mixer ... _Issues#cp

What do you mean by "decoded time"?