More > JRiver Media Center 32 for Linux

Raw output to DAC for 5.1 and more..

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mattkhan:
Also post the log for when the playback changes happen then you may get better info as to what the error is

jheb:
It is simply not implemented in Linux. Windows version offers several options under bit streaming.  Linux only has DSD and nothing else.  I selected the other options and intermixed files of 5.1, 96/24, etc all worked fine under windows with bitstreaming set correctly.

David Sydney:
It works for me - but you have to experiment to select the right device "iec958 Card" for SPDIF out put in my case. However if you are using a USB DAC it is not garanteed that Linux distribution you are using has a plug/play driver loaded to support it. That is nothing to do with JRiver. You need to ensure the system recognises your DAC somewhere within the Linux system audio settings - and run Youtube or something else through before going to JRiver to change the audio settings within JRiver which uses the system mixer by default.

I just bought a SMSL SU-1 for various reasons but also because it states that Linux is supported 'Linux (driverless)' meaning I should not have to hunt for a system package that has a driver for it.....

No idea what distribution you are running as they have differing sound apps and treatment depending on which one - but I suggest your investigation needs to start on that distribution's forums - not in the JRiver forum.

David Sydney:
I just added a similar setup to my equipment, a USB SMSL SU-1 DAC. To get it exclusive in JRiver I need to Create a new Zone so I can specific the Audio device. Also tell Linux in Pulse to assign Digital audio to that device ( (may be different for different distribution) IEC958 and NOT Analog audio. Then in JRiver pick the device "iec958: CARD=AUDIO DEV=0 [ALSA]"

Your setup will be different if a different distribution but may give you a clue in what to follow? Perhaps you are sending out analog sound out the USB which is apparently possible - but wont amount to any sound I believe.

bob:
In MC's audio->advanced settings->Auto config output settings on playback failure, set to NO. That will prevent the output format from changing.

The Audio device you choose for USB definitely should not the PCH one you showed in your screen shot.

There is a command line utility in MC to show all of the audio devices and their capabilities.
In a terminal session run
/usr/lib/jriver/Media\ Center\ 32/alsacap
post the output here.

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