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Multi-channel weirdness--no center channel--Mac Mini M1 with JRiver 28
JHR:
Hi folks,
I've got a real head scratcher here--there may be a bug in the way MC28 handles multichannel playback.
I'm playing multi-channel video (from a Windows MC 28 server--but that shouldn't matter) on a 2020 M1 Mac Mini, Mc 28, and I seem to have no center channel information playing in a 5.1 setup--but all other channels work!
I hope someone can help (searching the forum for center channel doesn't reveal anything, unfortunately).
I am using HDMI to get the multichannel output to my AV receiver (Yamaha). I have set up the Midi channels app on the Mac, and am letting JRiver MC pass them through (original source channels, though I have tried to let MC mix to the center as well). This has always worked just fine before (2012 Mac Mini).
I currently have a 5.1 hardware setup: left, right, sub, right rear, and left rear, and center. All the channels work but the center channel. It doesn't matter what the source is, if there's a center channel it doesn't play.
How can this be? I'm on Monterey (newest) and MC 28.0.87
I checked each speaker with the Midi app on the Mac, and it tests fine. It's on "channel 4" of the multi-channels, and when I click the speaker item, it sounds just fine.
-->If I go to MC DSP Studio, and click the checkbox to let MC bounce the center information to the left and right channels, then I hear the information, so it *is* being processed! But it's not getting to the center somehow! :)
On my 2012 Mac Mini, MC 28 audio worked fine, and I wouldn't have changed it, except I now have a 4k TV and the 2012 Mac mini isn't capable of driving even 2k content.
I understand the new HDMI limitations of the M1 Mac Mini (there is only 48kHz output), but those don't extend to center channel playback, I don't think.
Any help would be greatly appreciated. I've tried everything I can think of, but it just doesn't work.
bob:
--- Quote from: JHR on December 02, 2021, 04:01:48 pm ---Hi folks,
I've got a real head scratcher here--there may be a bug in the way MC28 handles multichannel playback.
I'm playing multi-channel video (from a Windows MC 28 server--but that shouldn't matter) on a 2020 M1 Mac Mini, Mc 28, and I seem to have no center channel information playing in a 5.1 setup--but all other channels work!
I hope someone can help (searching the forum for center channel doesn't reveal anything, unfortunately).
I am using HDMI to get the multichannel output to my AV receiver (Yamaha). I have set up the Midi channels app on the Mac, and am letting JRiver MC pass them through (original source channels, though I have tried to let MC mix to the center as well). This has always worked just fine before (2012 Mac Mini).
I currently have a 5.1 hardware setup: left, right, sub, right rear, and left rear, and center. All the channels work but the center channel. It doesn't matter what the source is, if there's a center channel it doesn't play.
How can this be? I'm on Monterey (newest) and MC 28.0.87
I checked each speaker with the Midi app on the Mac, and it tests fine. It's on "channel 4" of the multi-channels, and when I click the speaker item, it sounds just fine.
-->If I go to MC DSP Studio, and click the checkbox to let MC bounce the center information to the left and right channels, then I hear the information, so it *is* being processed! But it's not getting to the center somehow! :)
On my 2012 Mac Mini, MC 28 audio worked fine, and I wouldn't have changed it, except I now have a 4k TV and the 2012 Mac mini isn't capable of driving even 2k content.
I understand the new HDMI limitations of the M1 Mac Mini (there is only 48kHz output), but those don't extend to center channel playback, I don't think.
Any help would be greatly appreciated. I've tried everything I can think of, but it just doesn't work.
--- End quote ---
I'd make sure that the auto configuring of DSP studio is disabled in MC's options.
Is the source material 48k or is it being processed by either the server or Mac to get it to 48k? All material must be 48k to play through HDMI.
When on Mac it's usually useful to turn off integer mode and exclusive access to start with when testing.
JHR:
Thanks Bob!
--I made sure "Audio...advanced...autoconfigure output settings on playback error" was set to "no"
--All DSP studio resolutions in DSP studio are set to 48kHz
--DSP studio is set to "source number of channels" though I've tried setting it to 5.1
--Source material is 48kHz
I'm absolutely stymied by this. Like I said, if I set it to 5.1, and "Move Center to Front L/R" then it does exactly that.
So there is sound, just no center channel. Sounds like some weird mapping issue to me!
bob:
I'll try duplicating it unless some other Mac multichannel guru chimes in.
It's a bit of a pain with the way that my computer and audio systems are setup.
JHR:
Thanks so much Bob! I truly appreciate you trying this out!
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