Hercules Inpulse T7 + Meta Quest wrong headphone output

  • Device model: Quest 3
  • Version of operating system: 2.1.1034
  • Version of djay: 1.1.0
  • Hardware/controllers used: Hercules DJControle Inpulse T7
  • Hardware firmware version: Latest

A) SUMMARY OF ISSUE:

  • Headset audio gets outputted through main audio channel

B) DETAILED STEPS TO REPRODUCE:

  1. Connect the Hercules Inpulse T7 to the Quest, select midi mode.

  2. Play a song with the cross-fader put in the opposite deck (the song should not be playing through the main output)

  3. Put the headphone pre-listen to the playing deck (press the headphone button if the Inpulse T7 on the side that is playing the song.

C) EXPECTED RESULTS:

  • The song should not be heard through the main output of the Inpulse T7, only through the headphones.

D) ACTUAL RESULTS:

  • The song is heard through the main output (AUX) of the Inpulse T7, as well as through the headphones (both at the same time)

This makes it impossible to use in a gig as the pre-listen of the song is played through the main output.

Hi @djtom, welcome to the Community! Sorry to hear you’re experiencing this issue. Thanks for the details about the issue and your setup - this is very helpful. If possible, can you please capture and share a video of this? It sounds like you might be trying to split the audio between the Quest 3 built in speakers and the T7 main output. I want to make sure I fully understand what’s happening. Thanks!

No I want to split the audio between the T7 main output and headphone output just like in the desktop version. I dont want to hear anything through the Quest speakers.

Here is a video of the issue, hope it’s clear enough (sorry about my English)

Additionally there is another issue where the headphones only play if the cue/mix potentiometer is set to “mix”. In “cue” nothing goes out of the headphones. Not sure if its related to the other issue but just in case.

Thanks for the video @djtom.

  1. Are you using any USB adapters between your T7 and the Quest 3?
  2. Have you tried a different USB cable?
  3. What if you disable the Master Headphone Cue?

Hello, thanks for the response.

I am not using any adapter, it’s a direct USB Type B to Type C cable.

I have also tried with the cable that came with the Hercules, Type B to Type A, with a Type A to Type C adapter. No difference, same behaviour.

The Master Headphone Cue doesn’t seem to have any effect - nothing changes whether it’s on or off.

This T7 is working good with the Windows desktop version of DJay to also discard any issues with the console itself.

Thanks for the additional info @djtom.

  1. Do you have another USB-B to C cable you can test with?
  2. If you launch djay on the Quest 3 without the T7 connected then connect the T7 via direct USB cable,l after djay is running, what audio options do you get?

I don’t have more cables, but I think if already with 2 different cables the issue is the same, it should not be the cable?

When I launch Djay and then connect T7, I get the pop up to choose between Headset audio or Controller audio. Curiously enough, it doesn’t matter which one I choose, the audio always goes through the controller (and with the same problem as shown in the videos). Even if choosing Headset audio, there is no audio coming out of the headset, only through the controller.

If I disconnect the cable then the audio goes out through the headset as expected.

A correction about this - if I disable the Master Headphone Cue, then I never hear anything out of the headphones, no matter if the potentiometer is in Cue or Mix. But the pre-listen audio still comes out through the main channel out of the AUX speaker.

Thanks for the additional info @djtom. USB-A to C adapters can be pretty unreliable so I wouldn’t really count your other cable setup. If you don’t have another high-quality USB-B to C cable to test, then you could try uninstalling djay, reboot the Quest 3 and reinstall djay. In the meantime, I’ll share this with our hardware team to see if they can reproduce the issue on the same setup.

Looking at Meta Quest store reviews, it seems I am not the only one having this issue, and happens with other hardware too:

Thanks for sharing @djtom. You are correct. It looks like a recent Horizon OS update has introduced an audio issue when connecting MIDI controllers to the headset. This does not appear to be hardware device specific or app specific. I’ll see if I can get more information from our dev team. Thanks!

Hello again @djtom. I did some more digging. It looks like multi-channel audio support has been dropped in Horizon OS. Our development team is working on some options to at least disable pre-cueing so it doesn’t blend with the main output. I will share more news here when I have it. Thanks!

Do you know in which version of Meta / Horizon OS this was working correctly? So I can try downgrading.

It seems like it multi-channel audio support was silently dropped around around v67, but I cannot find an official announcement.

Actually it seems there is no way to downgrade the OS :frowning:

Does this means it will not be possible to use Djay with hardware properly anymore?

Sorry to hear that you were unable to rollback the OS. Unfortunately, this seems to be the case unless Horizon OS brings back multi-channel audio support via the USB-C connector. As I said, our team is looking into options, but we don’t have any timelines to share right now.

Perhaps it would it be possible to have headphone audio come out the Quest headset, with main audio coming out of the DJ console? That might be enough as the Quest has a jack output for headphones that could be used in that way.

Good idea @djtom. I’m sure our engineering team is investigating all possible options.