Sync-Locked Track Groups

Peter 22Feb13: WIP - working-title only - proper title to be decided later

The Sync-Locked Tracks feature is enabled by the "Sync-Lock Tracks" menu item or button. It ensures that length changes occurring anywhere in a defined group of tracks (a Sync-Locked Track Group)also take place in all audio or label tracks in that Sync-Locked track group even if those tracks were not selected. This lets you keep existing audio or labels synchronized with each other even when carrying out actions like inserting, deleting or changing speed or tempo.

Peter 22Feb13: Even the intro note here is not strictly accurate, clear or helpful. It's not really "length changes" that are affected it is all "temporally induced changes" that are affected (e.g. sliding SLTGs along the time-line with the "Time Shift" tool) - but I don't think I want to use wording like "temporally induced". ToDo-2 this a place marker for me to think about this.

Sync-Lock Tracks

Peter 22Feb13: tell 'em here what SLT does by itself

Sync-Lock is off by default, but can be turned on at Tracks > Sync-Lock Tracks or by using the Sync-Lock Tracks button () in Edit Toolbar. etc. ...

Sync-Locked Track Groups

Any audio track in Audacity can be in a group of one or more adjacent tracks that can be Sync-Locked with other tracks in that group. Sync-Lock is off by default, but can be turned on at Tracks > Sync-Lock Tracks or by using the Sync-Lock Tracks button () in Edit Toolbar.

When Sync-Lock is on an icon () shows bottom right in the Track Control Panel of each track in a Sync-Locked group provided at least one of those tracks is selected. The icon denotes all tracks that will be affected when a menu operation in a selected track inserts or deletes audio (or otherwise changes the audio's position on the Timeline). The unselected tracks that will be affected are denoted by a patterned "Sync-Lock" selection in the waveform instead of the dark gray of a normally selected track.

Label Tracks can be included in a group so that their labels are synchronised with the audio. If present a Label Track also delimits a track group so that the audio track(s) underneath are in separate group(s). Tracks in those groups will not be affected by actions in the group above unless at least one track in those separate groups is selected. If a group includes more than one label track, the bottom label track delimits the group.

Peter 22Feb13: probably a 3-group example image to go here

Tutorials

Peter 22Feb13: WIP only links for now - text to be provided later. H2 title here is purely a working-title