INTERACT FORUM
Devices => JRiver Id -- Hardware by JRiver => Topic started by: mckaymckaymckay on May 18, 2017, 03:32:14 am
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Hey guys,
My first post here (that i can remember), and i've just received my SD card version of ID for the Raspberry Pi 3. I'm having a few issues trying to get my DAC working properly.
The DAC i have is the Xiang Sheng DAC-01A V10 (ak4490), with XMOS 8U6C5 receiver.
The issue i'm having is dropouts, clicking and popping from the audio while playing. I think its a resource issue considering i can replicate it by enabling the spectrum analyser. If i output through HDMI its perfect when doing this.
My music is stored on a NAS, which i've added to the network share. Most music being FLAC or mp3.
Changing different buffer sizes, sample rates, auto or manual makes no difference. I can force all outputs to 44.1 and it still pops and ticks.
All that is connected to the PI is my USB DAC, network and HDMI (running headless still has the same issue when playing, but i cannot force it).
I've read about alot of USB issues with resources so i'm wondering if my network and USB DAC are fighting for bandwidth and interfering with each other?
Anyone else encountered this or know how to overcome it?
Also just to note, this is replacing a small AMD bobcat ITX system which i've used for years and works well. I can push youtube videos to it using Allconnect on my phone and it streams them fine (audio only). However the ID system will fail to play anything i send across.
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I've read about alot of USB issues with resources so i'm wondering if my network and USB DAC are fighting for bandwidth and interfering with each other?
That's the likely cause. Did you try other USB ports?
You could test with local files, stored on the microSD card.
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Yes, tried all 4 USB ports to no avail.
I've not tried on local storage yet.
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Here too. I observed dropouts when connecting an AFI-USB reclocker / HF-noise Blocker to the Id's USB plugs.
This AFI-USB uses a XMOS USB input device.
The dropouts reduced significantly when:
-the supply voltage of the AFI was slighly increased
-the supply voltage and current (5V/500mA) was supplied externally and not supplied by JRiverId.
I wonder if a software/firmware change on Id-linux side and/or XMOS side could cure the problem?
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Possibly, i think i may just obtain an HDMI to SPDIF converter or Pi DIGI and use SPDIF instead.
I dont think the USB offers any more in the way of sound quality anyway.
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I definitely want to continue with AFI-USB downstream of JRiver Id .
Its reclocked/cleaned signal is definitely preferable over the standard SPDIF RCA or optical path.
So I wonder if the upgrade to MC22 carries any linux usb driver updates as well?
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Bit perfect via SPDIF or USB will sound the same.
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Bit perfect via SPDIF or USB will sound the same.
With identical bits , you may get a very different sound quality. Depending on timing/clock quality.
But this would lead off-topic here....