Keep your decks in perfect time. Tremor's sync system automatically matches tempo and aligns beats, so you can focus on creativity instead of beatmatching.
When you load a track, Tremor automatically analyzes it to detect the BPM (beats per minute) and locate the beat positions. This analysis uses advanced AI trained on thousands of tracks across all genres.
You'll see a pulsing "---" animation while the track is being analyzed. Once complete, the BPM appears in the deck header and the beat grid is drawn on the waveform.
BPM detection works best with electronic, pop, hip-hop, and most danceable music. Tracks with tempo changes or complex rhythms may need manual correction.
The SYNC button on each deck locks that deck's tempo to the other deck. Here's how to use it:
When you press SYNC on a deck, it becomes the follower. The other deck is the leader. The follower continuously adjusts to stay locked to the leader's tempo.
The waveform shows vertical lines at each beat position. The downbeat (beat 1 of each bar) has a thicker, brighter marker. When two decks are synced, their beat grids should align perfectly.
Sometimes the automatic detection places beat 1 on the wrong beat. You can fix this:
When mixing, look at the waveforms. If the beat lines from both decks stack on top of each other, you're in sync. If they're offset, the tracks will sound out of phase.
Tremor shows phase alignment in two ways:
On the SYNC page, two colored arcs rotate to show each deck's position within the beat cycle. When the arcs overlap, the decks are in phase.
A vertical bar between the waveforms changes color:
If you prefer to beatmatch by ear (like vinyl DJs), you can disable sync and use manual controls:
When Quantize is enabled, hot cues and loops snap to the beat grid. This helps keep things tight but can feel restrictive for manual DJs. Toggle it off in Settings if you prefer full manual control.