Support

Look at output in the status bar at the bottom of the window. Pick DDJ-FLX4 when it's plugged in, so its headphone output works too, or System default for your computer's speakers. If the status bar is hidden, turn on Status in the top bar.

Then check the volume where the sound comes out: the controller's MASTER LEVEL, a channel fader that's up, and the crossfader on that side.

Listening on headphones? The controller's headphones play only what you send to them. Press MASTER CUE to hear the main mix there. Press a channel's headphone CUE button to hear that deck (to line it up before the crowd hears it). Then turn up the headphone LEVEL, and set MIX between CUE and MASTER for what you want to hear.

DigiJam looks for controllers every second, so you can plug one in at any time. Use a USB data cable straight into the computer rather than a charge-only cable or an unpowered hub. No driver is needed.

• Akai MPK Mini MK2: set it to Program 4, which DigiJam's mapping uses.
• Other MIDI keyboards: the keys work straight away. Map pads and knobs with MIDI learn.
• A DJ controller that isn't listed: tell us which one.

Pick a larger buffer in the status bar (for example 512 frames). A larger buffer is safer against dropouts and adds a few milliseconds of delay. Closing other heavy apps also helps.

Put FLAC, WAV, MP3, AIFF or M4A files in the digijam folder inside your Music folder (~/Music/digijam). They show up in the decks' song picker. DigiJam reads them and never changes them.

On a Mac, in ~/Library/Application Support/app.digijam.DigiJam. On Linux, in ~/.config/digijam. Copy that folder to back them up or move them to another computer.

Playing a controller doesn't count as using the keyboard or mouse, so a laptop (on battery especially) may dim or turn its display off mid-set. Keep Keep screen on ticked in the status bar. It's on by default.

Early test builds aren't signed with an Apple Developer ID yet, so macOS blocks the first launch. Open it once, click Done, then go to System Settings → Privacy & Security, scroll to "DigiJam was blocked" and click Open Anyway. After that it opens normally. The Mac App Store version won't need this.