Audacity Forum

Unfortunately the batch features in Audacity are not yet sufficiently comprehensive to do this.

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The tone generator is accurate to at least 0.001 Hz and probably much more.
This does not mean that your sound card is capable of playing with such accuracy.
Why are you asking?

However, on some tapes different 'tracks' have very different volume levels, and I would like to set them all constant. The brute force way is to select each individual section and normalize. Normalizing songs to the same value will not necessarily make them sound the same loudness. For example, if...

allencmcbride wrote:So do you mean that going from 32-bit to 16-bit is worse than recording in 16-bit to begin with?

No - there's no difference (or at least none that you will notice). But there may be a very small loss in quality from the original 32 bit files, so why bother changing them unless you have to?

Not all audio device drivers support Audacities input selector, however, on XP selecting the input explicitly from Preferences gets round this limitation.

For issues with Vista, see: http://www.audacityteam.org/wiki/index. ... s_Vista_OS

You could try using the "Silence Finder" from the Analysis menu in Audacity 1.3.x, and then exporting the resulting label track. This may or may not help you.

This will work with some recordings: http://www.audacityteam.org/wiki/index. ... al_Removal

Note that this is rarely possible with mp3's because mp3s usually mess up the stereo separation.

Try playing the file before you export - the mix should sound the same. (I think I may remember something in Audacity 1.2.6 about "muted" tracks not being muted in the mix, so if you have a problem with muted tracks, try using Audacity 1.3.x beta).

Go to: "Edit > Preferences > File Formats" and you can set the export format.