Audio Input Not Detected

Check macOS Microphone Permission

CueSync requires microphone access to analyze audio. If the permission was denied at first launch:

1. Open System Settings → Privacy & Security → Microphone.
2. Ensure CueSync is in the list and the toggle is on.
3. Restart CueSync after granting permission.

Selecting the Correct Input Device

1. Open CueSync → Settings → Audio Input.
2. From the Input Device dropdown, select your audio interface, microphone, or loopback device.
3. Confirm the Level Meter shows movement when audio is playing.

If your interface is not in the list:

• Confirm it is connected and recognized by macOS (check System Settings → Sound → Input)
• Try unplugging and replugging the USB/Thunderbolt connection
• For aggregate devices, build the aggregate in Audio MIDI Setup (Applications → Utilities)

Common Fixes

| Symptom | Fix | |---------|-----| | No devices in dropdown | Grant microphone permission; restart CueSync | | Interface listed but no signal | Check cable/input gain on hardware; confirm the correct input channel | | Level meter moves but AutoPilot doesn't respond | Input level too low — increase gain in Settings → Audio Input | | Works then stops randomly | Disable macOS "automatic sample rate switching" for the device in Audio MIDI Setup |

System Audio Loopback (DJ / Live Setup)

For DJ setups where audio plays through speakers (not a microphone), use a loopback to send the DJ software's output to CueSync:

• BlackHole (free) — virtual audio driver; route DJ software output to BlackHole, then select BlackHole in CueSync
• Loopback (paid) — full virtual routing with a graphical interface

After installing:

1. Set your DJ software's output to the virtual loopback device.
2. In CueSync → Settings → Audio Input, select the loopback device.
3. The level meter should show your DJ software's audio.

Still No Audio?

Restart the CoreAudio daemon without rebooting your Mac:

sudo killall coreaudiod

Then reopen CueSync. This resolves most persistent audio device issues on macOS.