🎚️ Mixing Decks

Getting started

• ➕ Add Track loads a song (or any video's sound) into that deck's library. Tap a track in the list to load it onto the deck.
• 🎧 next to any track previews it independently — it won't disturb what's playing on the decks.

Waveform & BPM

• A waveform is drawn automatically after a track loads — tap or click anywhere on it to jump there.
• BPM is detected automatically a moment after loading (labelled "auto"). If a track's beat is unclear, tap 👆 Tap Tempo in time with the music instead — at least 4 taps.

Cues, loops & sync

• Cue 1–4: first tap sets a marker at the current position, second tap jumps straight there. Clear cues resets all four.
• 🔂 4 / 8 / 16 beats: instantly loops that many beats from wherever the track is playing, using its BPM.
• 🔄 Sync Deck B to Deck A: matches B's speed to A's BPM and nudges its beat to line up — fine-tune by ear afterwards.

Tone & FX

• Speed / Bass / Treble control playback rate and simple EQ per deck.
• Filter: centre is off — drag left for a closing lowpass sweep, right for an opening highpass sweep (classic build/drop effect).
• Echo / Reverb: 0 is off; raise for more effect. Great on the outgoing track during a transition.

Crossfader & recording

• The Crossfader blends between Deck A and Deck B.
• ⏺ Record the Mix captures exactly what you hear — both decks, the crossfader position and all FX — and gives you a file to download when you stop.

Audio routing (headphones + speakers at once)

• Tap Show my devices once to see your speakers and headphones by name.
• The deck mix plays through both Speakers and Headphones at once, each with its own volume slider — turn one down without affecting the other. Set Preview to your headphones to cue up the next track privately while the crowd hears the current mix.
• Without this, plugging in headphones can silently become your computer's new default output for everything.