Muffled/Degraded Audio on Channel 1 with DDJ-FLX10, Resolved by Software Restart

Bug Reports
1

Muffled/Degraded Audio on Channel 1 with DDJ-FLX10, Resolved by Software Restart

Device & Software Information:

  • Controller: Pioneer DDJ-FLX10 (Firmware version: [Please add firmware version if known])
  • Computer: MacBook Pro (14-inch, 2023)
  • Processor: Apple M2 Pro
  • Memory (RAM): 32GB
  • Operating System: macOS Tahoe 26.0.1
  • Software Version: Algoriddim dJay Pro 5.5

Summary of Issue: While DJing, the audio output from Channel 1 suddenly became heavily muffled and degraded. The audio quality on channels 2, 3, and 4 remained perfect.

Steps to Reproduce: Unfortunately, the issue occurred spontaneously during a session and I cannot reliably reproduce it.

  1. Began a DJ session with the DDJ-FLX10 connected to the MacBook Pro running dJay Pro 5.5.
  2. All channels were functioning correctly.
  3. After some time, about 30 minutes, I noticed the audio from Channel 1 was muffled and degraded, like the sound from behind a door.
  4. I had just loaded a track by mistake and pressed cmd-z to restore the previous track

Additional information; this was DJ session number two that day. It followed a 90 minute session at another location where after playing the laptop lid was closed before relocating to a new gig and re-setup but with no restart of the application.

Observed Result: Channel 1’s audio output was muffled and of poor quality. All other channels (2, 3, 4) sounded clear and as expected.

Expected Result: Audio output from Channel 1 should remain clear and at full fidelity, matching the other channels.

Troubleshooting Steps Taken:

  1. Restarted DDJ-FLX10: I power-cycled the controller. This did not fix the issue. The audio on Channel 1 remained muffled when the controller reconnected.
  2. Restarted djay Pro Software: I closed and reopened the dJay Pro 5.5 application. This did fix the issue. Upon restarting the software, audio on Channel 1 returned to normal.

Conclusion: Since restarting the hardware had no effect, but restarting the software did, this may appear to be a software bug within djay Pro, where the audio processing or routing for a specific channel became corrupted.

3

Hi @shabbytech, sorry to hear you’re experiencing this issue.

  1. Are you running the latest FLX10 firmware from Pioneer DJ?
  2. Are you using the (built-in) FLX10 MIDI mapping or a custom edit?
  3. Are you using an aggregate audio device setup on your Mac (outputting audio across 2 devices instead of 1 - for example main audio through your Mac speakers and pre-cueing through the FLX10)?
  4. How exactly are you connecting your FLX10 to your Mac (any USB adapters, USB hubs, etc)?
  5. Have you tried a different USB cable and different USB port on your Mac?
4

Hello! It’s been a week since my last reply. I’m going to consider this topic completed for now so I can focus on others. However, please feel free to respond and we can definitely revisit this. Thanks!