A LITTLE DIRECTION
Beat lock means Sync has confirmed the timing. During quiet intros or breakdowns it may wait for a clear beat instead of guessing. Sync follows records whose tempo drifts, as vinyl rips often do. It needs a steady kick on the beat: records without one may not lock.
CUE marks a point while the deck is paused, and returns to it while it plays. Pitch stays locked, but large tempo changes can affect sound quality.
The decks support ¼×–4× speed and mono/stereo files up to 128 MB and 15 minutes. Browser audio interruptions may pause the mix. Keep this page open while mixing.
Pitch processing by Signalsmith Stretch / MIT