Has anyone been able to resolve this?
I finally got my Buffalo III 8 channel with 4 IVYs set up with USBStreamer. Everything works!!! BUT.... The USBStreamer won't stay locked. I am using JRiver to feed multi channel to the USBStreamer which feeds I2S to the buffalo. I am using placid hd 2.1 and the HDBP 2.1 for the IVYs.

Voltage to buffalo is exactly 5.25v and CCS is about 540 and shunting about 80. My I2S wires are about only one inch.

Please post if you have any ideas.
Thanks,
doug Riedel

Edited by moderator Tuesday, August 25, 2015 1:35:47 AM(UTC)  | Reason: Not specified

Yes, I tried several settings for DPLL bandwidth. Even Highest setting did not help.

I noticed Russ mentioned in related post on DIY Audio Forum a workaround to have USBStreamer modded to be used with Cronus and Hermes-BBB. If that's what I have to do, then I will, but hoping other solution exists. I will be interested in brief description of what modules I will need for this to work.

Another poster in related forum mentioned that setting SW2-4 to OFF to disable oversampling on the Buffalo III helped/worked, but didn't mention any potential pitfalls of that solution. I plan to try this evening.

Thanks so far for your help, and as I mentioned the rest of the setup works great but unfortunately unusable with frequent dropouts. good music for 2-5 seconds on and 1 second off though! HELP.

Some people out there have to have this setup working as MiniDSP claims they tested USBStreamer on Buffalo III.

thanks,
Doug

PS. As I mentioned, I have 1 inch Data/clock lines. I used stranded wire that came with USBstreamer. Is it worth even trying short solid core silver wire. I think some others have attempted but no success.

Edited by user Monday, August 24, 2015 3:08:06 PM(UTC)  | Reason: additional words

Hand drawn sketch attached to show wiring between USBStreamer and Buffalo. I will post actual photo tonight.

OK, I'm happy to have my project up and running, but..... I've read all the technical stuff regarding disabling the oversampling (which I'm not knowledgeable enough to fully understand, but at least theoretically it doesn't sound ideal). I have to say the biggest improvement has been my DIY bi-amped 3-way Scan-Speak Illuminator drivers speaker which has come to life because of the now functioning 8 channel DAC.

Brian, Russ or anyone: Will you kindly explain in layman's terms what I might be missing? Another forum user has available the Rigisystems USBPAL which supposedly fully functions with the Buffalo III where I would not need the Oversampling bypass workaround. I'm about $1200 into a DIY project started on a whim, would another $400 for proper USB interface be reasonably worthwhile in your opinion?

If it matters, I'm using JRiver exclusively to run active crossovers and I only use 44.1Khz and higher digital source files.

Thanks,
Doug Riedel

Vinste,
So just to confirm, you are NOT bypassing over sampling/re locking on SW2-4? And it still works?
Nice job on short wires!

Doug

Vinste,

How are you powering USBStreamer? 5V supply or usb?

Also: I tried setting my Quantizer to 7 bits and 6 bits with the SW1,3 to OFF (Psuedo) and still did not work properly although unlocks were less frequent and so in order to keep lock, I still have to Bypass Oversampling on SW2,4.

My wires are only 1 inch, but I'm curious if I can get my wires shorter to maybe 1/2 inch if it will help. so I am curious to hear if your testing results in continuous success with locking, before I try re-soldering.

Also, My ground wire from the Buffalo III to the USBStreamer is slightly longer than the data and clock lines as I didn't think it would matter. Does anyone think the ground must be the same length?

Thanks again,

Doug

I tried to upload picture, but it was too large size file for this forum. I will upload downsized file tonight. But I have a 2U Pesante case from Modu.

I have all my power wires twisted as well.

It's difficult to do A/B testing between having Oversampling bypassed vs. not because when not I can't get lock for more than a few seconds, but I wonder if I can even tell the difference.

Brian or Russ: Is the sound difference between Oversampling On vs. Off mostly theoretical or am I really doing my ears a disservice? Also, is there any chance with the firmware changes from a couple years ago that the OFF position for the oversampling is really ON (because turning it off to make it work seems counter-intuitive)?

Anyway, I have to say again even with Oversampling turned to Bypass, the sound is still quite good and my system works this way. But as this is a DIY project, I want to get it all exactly right even if I can't quite hear the difference with my ears (because that's what we audio nuts do, right?)

Thanks,
Doug

Vinste/Brian,

Here is photo of my setup.

Thanks,
Doug