The Time Track is a new feature that lets you change
the rate of playback over time. Start by choosing
New Time Track from the Project Menu.
Then change the range of time warping by clicking on the
Track Pop-Down Menu and choosing
Set Range (an option which only appears for Time Tracks).
Older computers may be incapable of playing audio in real-time
that makes use of a Time Track, however you can always Export the
file as a WAV and then playback the WAV file later.
To edit the time warping, choose the envelope tool from the
Control Toolbar - the same tool
you use to edit amplitude envelopes in Audio Tracks. Click to
create and edit control points. Drag points off-screen to
The Time Track has a ruler. As you edit the warping, the ruler will
warp to show you at what time playback will reach each place in the