Audacity Forum

Could you be more specific. Where were you downloading from, and exactly what happened?

No, there's no PDF Help file, just the 340 page html manual (included in the exe installer).

Ensure that all sound "Enhancements" are disabled: http://manual.audacityteam.org/man/faq_ ... hancements
Ensure that you don't have Skype or other VOIP application running, not even in the background.

With Audacity shut down, try trashing everything that's in:
~/Library/Application Support/audacity/

"~/" means the home directory of the logged-in user.
Note that closing applications does not shut them down. You have to "Quit" the application.

Adding silence does not change the values of existing samples in the track, so dither is not required.

Audacity does not apply effect in real time. Whether or not Audacity can record while another application (such as a voice changer app) is using live input (essentially the same as recording), will depend on how that other app is using the sound system. It may be possible to record a standalone voic...

If repeat effect, ("Ctrl"+"R"), is used to repeatedly apply version-2 of dynamic-mirror to one track only, the effect being applied will be different with each repetition, because the control-track is changing, (not necessarily a bad thing, but perhaps counter-intuitive). I can ...

Where possible, label the parts that you want to select rather than the parts that you don't want to select. A labelled region can be selected by clicking in the text area of the label. You can also Tab from one label to the next (http://manual.audacityteam.org/man/label_tracks.html) Probably the ea...

The 'rule' about when to apply dither is very simple: "Apply dither when converting to less bits per sample". Audacity does this by default. The catch: Audacity processes in 32-bit float format, so if the track is less than 32-bit float, then processing the track in any way will involve a ...

Kdmeizk wrote:It means dithering is applied, so there is no more "bit-perfect"/lossless!

Yes it does, unless you turn off dither in preferences. Unfortunately Audacity is a bit overenthusiastic about applying dither, and could be a lot smarter.