Replace audio
Replace audio swaps the file behind a song and keeps everything you built on it. If a corrected mix lands the morning of a show, you can put it in without rebuilding the cue structure.
How to replace a file
- Click the chevron on the song card to expand it, then click the ⇄ button in the row of small buttons under the offset editor (tooltip: Replace audio (Pro)). It is not in the right-click menu.
- Pick the new audio file.
- LTCast compares the old and the new recording by sound and opens the Version compare view, where you review what moved and apply it.
There is no separate offset preview any more: replacing audio goes straight to the compare view, because a new master is rarely a clean shift — a re-edit adds or drops sections, and a single offset would quietly put half the show in the wrong place.
If the song's current file is missing, Replace audio just points the song at the new file, the same as relinking it.
If the files are not the same song
When the two recordings do not sound like the same song, auto-remap is switched off and LTCast offers Swap file only (keep cues) instead: the audio is replaced and every cue keeps its time. If the new file is shorter, markers that would fall past its end are moved to just before the end, and a warning says how many. MIDI cue timecodes are left as they were. LTCast does the same plain swap, with a warning, when it cannot decode one of the files to compare them.
Related
- Version compare — what the compare view shows, auditioning the two versions, and updating a whole set at once.
- Relink missing files — for a file that has moved rather than changed.