Premiere Pro “Synchronize” not working?

Why it fails

• Too many clips at once. Synchronize compares the clips you select against each other. With dozens of clips from several cameras, it often gives up or places some wrongly.
• Clips that don't overlap. Clips from different moments of the day have nothing in common to match.
• Quiet or very different sound. A distant camera mic and a close lav sound very different.
• Long takes. Clock drift means the start lines up but the end doesn't.
• Wrong channel. Premiere uses the selected track's channel; if that channel is silent, there's nothing to match.

Quick fixes to try in Premiere

1. Sync smaller groups: one camera clip plus the recorder file it overlaps.
2. In the Synchronize dialog, choose Audio and pick the track channel that actually has sound.
3. Make sure every clip has sound — no sound, no sync.
4. For long takes, check the end of the clip too. If it echoes, it has drifted.

Or sync the whole shoot with the Waveline panel

The Waveline extension adds a panel to Premiere that syncs everything at once:

1. Open Window › Extensions › WavelineInstall it from the download page if you haven't.
2. Click Timeline or Project panelUse the clips in your open sequence, or the clips and bins you've selected.
3. Press SyncHundreds of clips are matched, grouped into shoot blocks, with anything doubtful flagged.
4. Create sequence in this projectA new, synced sequence with one track per camera opens in your timeline.

It handles clips that don't overlap, long takes (with drift correction) and recorders with many channels.