It is connected to USB 3.  All drivers up to date.  I have tested both the USB 3.1, 3 and 2 ports.

oh no.... it's ASMedia.  Are there any workarounds?  This computer I am on now is my second computer build this week.  I originally had an x99 MSI board that was having even worse performance problems.  I brought the Motherboard back and bought a much more expensive one hoping it would fix the problem. 

Are RME planning to release a driver with added compatibility in the future?

Thank you Dan....I totally missed those compatibility issues listed on the RME page.  My fault.

Thanks for the info Matthais.  I have tested all USB ports besides USB2.  running at 44.1 I can only get workable sample rates from 256 to 2048.  at 96 I can only do 4096 to 512.

while playing back a single video from youtube if I switch (below 256@44.1) or (below 512@96) the video and audio freezes and unfreezes every second.  while recording the audio drops out. 

all my motherboard drivers are correct and up to date.....and so is my bios.  Not to mention I am getting the same results on 3 different computers. 

Also....why is it possible to achieve 32-4096 on my UFX at 44.1  although the Madiface XT can only do 256-2048? 

is there a way to increase the performance.  In a mixing scenario with a 60+ track count it is very difficult for the computer to operate at such a low buffer size.  At this point I can't even open projects that were mix using the UFX due to the poor USB performance. 

I'm guessing this has something to do the Madiface XT track count?  Are there other ways to limit the bandwidth to get similar results to the UFX. 

I appreciate your assistance. 

Thank you!

Not sure about this configuration, but perhaps the 3.1 will indeed be troubled by the ASMedia chipset. There is nothing we could change in the driver to simply "add compatibility", sorry. This i more a matter of performance, making certain chips incompatible with full performance, so to speak.

Find a PCIe card with the Fresco chip or consider PCI-Ex connection....

Regards
Daniel Fuchs
RME

Neither device has got any inherent "performance" when it comes to your DAW projects and VST instruments etc. The Madiface XT is not meant to provide better "performance" as such, although on a good system, overall performance should be similar. But as it appears, this system is somehow not as good as it might be for some reason. No similar performance issues are known in connection with the XT otherwise. If this PC can not provide uninterrupted audio at lower buffer settings with the XT, then this will need to be fixed on the side of the PC, it is not the audio interface as such that "can do" a certain latency.

This might help identifying possible causes: https://www.forum.rme-audio.de/viewtopic.php?id=1704
Also, try reducing the number of WDM devices to 1 or 2.

Regards
Daniel Fuchs
RME

I can use 64 samples on any of my computers, that is really nothing special - normally, so there is something seriously going wrong. 3 different computers would point to the XT being broken, but these 3 computers are maintained by you and therefore might all have the same problem. What you overlooked:

- If you set the input to Redundancy and the output to Mirror (in the Settings dialog) the channel count is reduced to 64.

- If you set the unit to USB 2 mode you could even compare it to your native USB 2 port performance with the UFX.

Most of this has already been said but I'll sumarise it for you as it exactly tallies with my own experience for using the XT at lowest buffers.

Major:
- Use External PCIE over USB if you want maximum performance.  You can get an External PCIE card for a desktop, or an ExpressCard 34 for last generation laptops.  See this post https://www.forum.rme-audio.de/viewtopi … 62#p100162 for links. They are available from pro video suppliers.  A Matrox ExpressCard has worked flawlessly for me recording 32 channels at 96K.
- Set Redundancy and mirror modes in the driver (unless you want to use more than 1 Madi I/O)
- Set your DAW to use hardware monitoring if that suits your workflow.
- Setting my recording DAW (Sequoia) installation to use only a single core also brought less LAB's (lost asio buffers) at lower recording latencies.

Minor:
- Set MMCSS in the driver (actually that wasn't so minor in my case)
- Set low or no WDM devices in the driver

Simon

Thank you both for your input. 

can you please answer my last question?  What is the maximum buffer size the Madiface XT can operate @ 44.1 & 48?

I see.  Ok, thank you for you help matthias.