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More => Old Versions => JRiver Media Center 29 for Windows => Topic started by: PeterTristan on September 18, 2022, 01:55:53 pm
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Hi Everyone!
I bought JRiver and can't send clean dsd/dsf bitstream to my sound card that is a Asus Xonar D2X in the digital coaxial output. The only thing that I see in the display of my receiver: Pioneer VSX-920 is that the sound is converted to PCM or Dolby Digital. I tried many configurations in JRiver, and also many program "crashes", and can't have the clean bitstream of my dsd/dsf files played in my receiver. Can anyone help me? Thanks!
My Setup:
Windows 10
Sound Card: Asus Xonar D2X
External Receiver: Pioneer VSX-920 (This receiver decodes SACD and DSD bitstream)
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I was already pretty sure but I just double checked and looked at the manual for the Asus Xonar D2X and as I thought it doesn't support DSD, so that's one reason why it doesn't work. I'm actually not aware of any PCI-E sound cards that do support DSD either, it's mostly just USB DACs these days.
More information about DSD here: https://wiki.jriver.com/index.php/DSD
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In addition, I also looked at the information and the manual for the Pioneer VSX-920, and it doesn't mention anywhere that it supports DSD either via USB (via native DSD or DoP) or with DSD-over-DLNA either, except when using a disc player that supports/decodes SACD discs connected via HDMI to the Pioneer receiver. So that means both your sound card and receiver don't support DSD the way you want them to.
From the manual...
When digital input (optical or coaxial) is selected, this receiver can only play back Dolby Digital, PCM (32 kHz to 96 kHz) and DTS (including DTS 96 kHz / 24 bit) digital signal formats. The compatible signals via the HDMI terminals are: Dolby Digital, DTS, SACD (DSD 2 ch), PCM (32 kHz to 192 kHz sampling frequencies), Dolby TrueHD, Dolby Digital Plus, DTS-EXPRESS, DTSHD Master Audio and DVD Audio (including 192 kHz).
It's kinda common for a receiver to only support DSD when connected directly to a disc player with SACD support over HDMI. Do note that DSD over HDMI only works from a disc player that supports SACD playback connected directly via HDMI to the receiver, and won't work from any sort of computer like a PC, Mac, Raspberry Pi, smartphone, etc. from a HDMI port. So the fact that your receiver only supports DSD via HDMI with a SACD disc player is likely of no use here for your intended use case.
Bottom line is I'm honestly not seeing any way you can get DSD working with your setup without either adding/replacing equipment or just allowing MC to convert it to PCM, since both the Asus sound card and Pioneer receiver don't support it this way.
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It isn't possible to send DSD over SPDIF.
It's not allowed (copy protection) and the Interface isn't able to send so much Data fast enough.
Only HDMI, USB? and special Interfaces like Denon Link 3rd (if I am not wrong) can send DSD native.
All others do an PCM conversion first.
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You can send 1x DSD (DSD64) over S/PDIF using DoP if your S/PDIF supports 176.4 KHz sample rates. However, many S/PDIF devices do not support 176.4 Khz. I do not believe the Asus D2X supports 176.4 Khz. S/PDIF is not normally used for DSD, but in some cases it can work, but that is an unusual case. Certainly not something to regularly given today's USB DACs.
I can confirm that DoP works over S/PDIF at 176400 kbps...