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Multichannel flac playback fails, outputs only stereo. Need help.

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pscott:
I'm new here. This is my first post. I've been trying out JRiver MediaCenter center for a couple of weeks. It's complicated but seems flexible enough to do everything I want in a mostly classical music player and library manager, better than anything else I found. However, I'm having trouble with multichannel playback. I can't get MC to reproduce all channels of 24-bit surround flac files. It's clearly something MC CAN do, and is supposed to do, but I can't get it to work, ever though my setup and settings seem right, afaik. I'll keep trying to troubleshoot, tweaking MC, but it's complicated and has lots of setting. Hope I'm just overlooking something and someone can help. Details of my setup are described below.

I'm using using MC Media Center 27.0.15 on a new Mac Mini, running macOS Catalina. The computer is connected via hdmi to a Yamaha  RXV-685 AV receiver that's connected via hdmi to a Samsung 60" HD TV that's my display. The device setting are for the hdmi device and core audio. Every DSP Studio and Playback option that I've tried only outputs stereo, even though the playlist indicates that the audo file I'm playing has 6 channels (5.1 surround). In the "Tools" window, the "Audio Path" shows the following:
   Input: 96 kHz 24bit  ch from source format FLAC
   Changes: Convert from 5.1 channels to 2 channels
   Output: 9 kHz 32bit 2 ch using Core Audio (direct connection)

Output encoding is set to none and sample rates are all set to no change. I've tried setting channel output 'same as souce', 5.1, and 7.1 (which is how my receiver is configured). In every case, the result is the same, the output is converted to stereo. The audio path shows no changes playing everything else, including 24-bit stereo flac. The player just refuses to output 6 discrete channels. I've also fiddled with setting on my receiver, but don't see any reason hdmi device wouldn't be multichannel. I don't have any problems with multichannel playback from other sources (cable TV and blue ray player). What am I missing?

BTW, my computer does output 5.1 sound to my receiver from video files played using VLC, so I know that the hardware can do this.

Thank you for any suggestions.

wer:
Welcome to the forums, Scott.

It would be helpful if you posted screenshots of the following:
MC Audio settings
DSP Studio Output format
MacOS audio device/speaker settings.  (this is probably not the issue since VLC works)

pscott:
Attached is screenshot of DSP studio output setting. Note that it's set to output "source number of channels", after I try to play that is changed to 2 channels.

pscott:
Here are the MC audio settings (although maybe not EVERY option is displayed).

wer:
Ok, thanks.

One screenshot is cut off... Is the Output Format module actually activated (the checkbox on the left is checked)?
If you don't understand what I mean, retake that screenshot without cropping it, so I can see the entire dialog box.

Can you show what options you have for choice of devices (where it says core audio) and for device settings?

Also, let's see a screenshot of audio path with the file actually playing, because what you typed was odd:
Input: 96 kHz 24bit  ch from source format FLAC

There is no channel count there. There should be.

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