What does CRC Fail mean

[AM909]

... Could this be happening because I run dsd/FMP inside a virtual machine? I mean.. could the digital data be getting lost due to the fact that it’s a virtual USB port in windows?

Sounds plausible to me, especially because it looks otherwise healthy. What's the native platform? Perhaps someone familiar with that kind of setup can suggest tuning or alternatives.

 

[tbr281]

Sounds plausible to me, especially because it looks otherwise healthy. What's the native platform? Perhaps someone familiar with that kind of setup can suggest tuning or alternatives.

I run OSX with windows 7 within vbox. I’m thinking to do a fresh install and try windows 10.
I’m gonna get a windows dedicated machine and run Dsd on there.

 

[lwvmobile]

I run OSX with windows 7 within vbox. I’m thinking to do a fresh install and try windows 10.
I’m gonna get a windows dedicated machine and run Dsd on there.

Just my personal observation, maybe it depends on which VM software you are using, and which host, but I have personally observed that Oracle Virtualbox and the USB 2.0 module/driver doesn't work that well. Sadly, I can't use the USB 3.0 xHCI in Windows 7 since it doesn't support it. I have issues in Windows 7 VM using rtl dongles where sometimes its like it can't quite keep up, and it introduces errors. Works much better for me in a Windows 10 VM with USB 3.0 xHCI enabled and not the 2.0.

That's just been my own personal observation though, can't speak for others or say you are having the same issue.

 

[kg6nlw]

I would go with Oracle VirtualBox as I've had minimal issues with it. Complete 180 from @lwvmobile I know, but it works and well!

Regards,

-Frank C.

 

[tbr281]

Just my personal observation, maybe it depends on which VM software you are using, and which host, but I have personally observed that Oracle Virtualbox and the USB 2.0 module/driver doesn't work that well. Sadly, I can't use the USB 3.0 xHCI in Windows 7 since it doesn't support it. I have issues in Windows 7 VM using rtl dongles where sometimes its like it can't quite keep up, and it introduces errors. Works much better for me in a Windows 10 VM with USB 3.0 xHCI enabled and not the 2.0.

That's just been my own personal observation though, can't speak for others or say you are having the same issue.

View attachment 113300

in that case I’ll install windows 10 and enable usb 3.0 and see if that helps.

 

[a417]

I have a 9 y/o i7 running linux (on a gigabyte motherboard with TERRIBLE usb support) , with Oracle VirtualBox running a win10 VM on that with 2 dongles on it on separate systems, both running DSD FL. I don't listen in realtime on them, as that system is poorly accessible, but I do log/record to mp3 for later system analysis. Getting correct configuration of the USB for passthru is essential, permissions, modules, etc...

I don't use the USB 3.0 (early revision) on it at all. I also made sure that each device was on a different USB root hub. The hardware I have has 5 USB 1.1 / 2.0 root hubs and making sure that each hub only had a single high speed device on it was important. The keyboard/mouse/fingerprint reader and nonsense are all on 1.1 or the internal 2.0, and the dongles are each on their own root hub - and are each on a powered extension / hub - so the motherboard is not fully powering the device itself (most of the issue with this craptastic Gigabyte motherboard).

What I found early on was having a device that was being shared between host / guest (like the mouse or keyboard) on a root hub with a dongle created stuttering, underruns, sporadic access issues, power issues, bizarreness that was giving me fits for months. I think the USB 2.0 passthru is reliable enough when it has to do what it needs to do, and that's give a guest VM access to a port. I think putting another device that can be randomly accessed by the host / guest / OS gives it fits.

Just my personal observation, maybe it depends on which VM software you are using, and which host, but I have personally observed that Oracle Virtualbox and the USB 2.0 module/driver doesn't work that well. Sadly, I can't use the USB 3.0 xHCI in Windows 7 since it doesn't support it. I <snip>

Get away from Win7 and try again.

in that case I’ll install windows 10 and enable usb 3.0 and see if that helps.

If your dongle isnt USB 3.0, don't bother.

 

[tbr281]

Hey guys, so I figured out the problem I had… turns out that the usb hub I was using either wasn’t transferring enough data or had a short. I bough a hub that takes advantage of both usb-c ports and seems to be working flawlessly without errors. Thanks for all the help that you guys have given me!