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DSD multichannel file play through DLNA Renderer problem

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vcastceo:
I use OPPO 203 as DLNA renderer. It has special DoP board which can send DSD stream to stereo DAC directly through Coaxial, with DoP signal, also it can play multichannel DSD file through HDMI.
Today I use .dsf stereo files and multichannel files (3CH / 5.1CH) and play it through MC 27 (Windows and Linux), with OPPO 203.
Stereo files is no problem at all. It can play both DAC and HDMI.
Multichannel does not. It can play through DAC without all other channels but only left/right.
But when I change to HDMI, it does not play any sound at all.

I was curious, that I save files on USB stick and play it directly on OPPO 203, Stereo/Multichannel both works without any problem.

My DLNA settings on MC27 network section set to No convert .dsf and sacd files, and also keep original channel so MC will not down/upmix any file.

I found this problem first since I use DLNA feature, like 6 months period. I never try to play multichannel file through DLNA.
Is there any solution for fix this? Or, very unlikely, did I miss something or get wrong setting my DLNA DSP studio?  ?

HaWi:
I used to try to do the same thing, i.e. playing multi channel audio via DLNA and could not get it to work. I came to the belief that DLNA cannot render mch audio but two channels only. The only way I found to play mch audio from my iMac or my RPi4 to my Marantz SR-7007 was through HDMI. However, if you do find a DLNA renderer that can do mch I'd love to hear about it.

vcastceo:

--- Quote from: HaWi on February 18, 2021, 01:19:46 pm ---I used to try to do the same thing, i.e. playing multi channel audio via DLNA and could not get it to work. I came to the belief that DLNA cannot render mch audio but two channels only. The only way I found to play mch audio from my iMac or my RPi4 to my Marantz SR-7007 was through HDMI. However, if you do find a DLNA renderer that can do mch I'd love to hear about it.

--- End quote ---

Glad to hear from someone who have same headache like mine.  ;D
I tested again, with DLNA and without DLNA.
There is actually 3 ways to do play audio through network on my OPPO 203 (Renderer).

1. Use JRiver on Raspberrypi / PC to push stream to Renderer -> stereo : work, mch : not work
2. Use OPPO network play menu -> Select Raspberrypi / PC DLNA -> stereo : work, mch : not work
3. USE OPPO network play menu -> Select SMB (Shared Drive) -> browse files and play -> stereo : work, mch: work

According to this result, DLNA also should be work, since DLNA don't convert anything but original DSD format send bitstream to renderer.
What I have doubt, result 1) and 2), is that both methods uses JRiver as streamer should have some problem or bug.

I am waiting, JRiver will respond this issue whatever answer - possible or impossible.  :P
Hope to fix this soon.

wer:

--- Quote from: vcastceo on February 18, 2021, 06:53:59 pm ---According to this result, DLNA also should be work, since DLNA don't convert anything but original DSD format send bitstream to renderer.

--- End quote ---

That's not a valid assumption. There are lots of receivers that do multichannel DSD when they can directly open the file (like on a USB stick or NAS) but not via DLNA; they're restricted to 2-channel only via DLNA. For example, the results you described above are exactly the results you'd get from a Marantz receiver or processor.

Moreover, if you haven't configured any conversion into the DLNA server, it is not sending a bitstream, it is sending the file. If the file is multichannel, the Oppo gets a multichannel file. What it does with that file is up to the Oppo.

Incidentally, a simple google search (not restricted to JRiver) reveals a lot of people complaining they can't get their Oppo to do multichannel DSD over DLNA.  I see no one saying they got it to work.

Contact Oppo tech support and get accurate information about your device's capabilities.

whoareyou:
I used my Oppo 205 for quite some time - just like this.  Multichannel DSD over network. So did a couple of friends.  The audio section is different from 203, but I thought 203 / 205 support same audio formats over network.   Does manual say 203 supports this  (I did not check manual)?

205 only shortcoming for me was lack of gapless playback over DLNA.  Otherwise plays everything over network flawlessly.

So try the following:
Turn off the bitstreaming (does DoP even support multichannel?),  You just need to send the file to the Oppo.  If I remember correctly, bitstreaming is not the correct setting for this and you should not be sending DoP.

First try seting format to "original" and make no output changes.  See if that works.   Again, I'm not positive, but I thought the 203 supports pretty much any format out there.

Most likely, no need to convert anything to / from a different format unless you know there is something that Oppo does not support.

PS - This was from a windows machine.  Not sure if there is difference with Linux.

Good luck

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