Thursday, June 30, 2022
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audio – MBP M1 utilizing HDMI output locks AVR to multi-channel PCM no matter enter supply


I’m having a sound/MIDI situation between my MBP M1 and my Pioneer VSX-LX503 AVR. When outputting sound utilizing a MFi authorized Belkin Thunderbolt 3 adaptor to HDMI, my receiver locks the enter as multi-channel PCM.

It doesn’t matter what app, sound or supply i.e. Apple Music, Infuse participant, Audirvana, and so forth outputting 5.1, 2.0, or Atmos it would at all times keep on 5.1 PCM.

I’ve a 5.1.4 Atmos arrange, so I set sound output to the AVR as Atmos at all times on, the MIDI is ready to eight channel 24 bit after which the audio system are arrange as Atmos 5.1.2. After I run take a look at sounds the audio system are correct besides channels 7 & 8 which ought to be Atmos sound coms out of my left and proper rear encompass the identical as channels 5 & 6.

So I’m quick, if I take heed to a track that’s 2 channel the AVR is locked to five.1 channel encompass. DD+, DTS, Atmos or any encompass don’t register as something however 5.1 multichannel PCM.

My Apple TV works simply high quality with the receiver and Pioneer says it’s a arrange situation with MIDI. Can anybody please assist?


Sasith Mawan
Sasith Mawan
I'm a Software Engineering graduate with more than 6 years experience on the IT world working as a Software Developer to Tech Lead. Currently the Co-Founder of a Upcoming Gaming Company located in United States.


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