Time Tracks
What's it for?
The Time Track controls the playback speed within a given range.
This track consists of a single envelope which can be edited in exactly the same way as for the volume envelope. It facilitates envelope-based resampling.
How to Use
Clicking on the track panel reveals a few options, similar to the ones of the track panel of an audio track.
- "Set Range" lets you set the minimum and maximum pitch change. It is expressed in percentage values relative to 100%.
- 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)
The converter used will be the one(s) set up on the Quality tab of the Preferences. You can make separate choices for Realtime (playback) and High Quality (exporting), trading speed against quality.
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 the track to delete them.
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 audio.
