Problem with XDA-2 and Foobar2000

[cwmcobra]

I decided to try Foobar2000 because I was unimpressed with uncompressed WAV files playing through Windows Media Player. And I like what I hear!  But I'm having a problem that I've not been able to solve after searching the Internet for fixes. I play an album in Foobar2000 and it plays fine until it seemingly at random stops and displays "Playback Error: Unknown error (80070015)".

I'm using the WASAPI device output; have tried both push and event with equal problems. I've updated Foobar2000 and installed the recommended drivers for Windows 10 for the XDA-2. The XDA-2 is connected to the PC using a USB cable. Which is a bit interesting in Foobar2000 it is recognized as "SPDIF out (2-USB2.0 High-speed True HD Audio". I thought it originally showed USB only, without the SPDIF reference, but that's all that available now.

Any thoughts on what might be wrong?

Thanks!

Chuck

[cwmcobra]

I think I just solved my problem. After reading threads on some other issues with Emo DACs and the Windows 10 drivers, I found that I was focused on the wrong culprit. I thought for sure it was a driver issue, but before unloading and reloading everything, and reading Keith's note about Emo DACs sensitivity to USB cable length, I tried a shorter cable and after one try, it's working fine. So, looks like I need to relocate my DAC and amp closer to the PC and hope my speaker cables are long enough!!!

Cheers!

Chuck

[frenchyfranky]

I'm not 100 % Sure, but if I remember correctly Wasapi using USB I mode, so you can use a USB II port but you should using only USB I compatible mode. With your described "SPDIF out (2-USB2.0 High-speed True HD Audio" mode it could be not compatible with Wasapi.

[KeithL]

Errrr... not exactly.

The physical USB mode (USB 1, USB 2, USB 3) doesn't have much to do with anything else - except that USB 1 may not be fast enough for higher sample rates.
Higher USB modes are supposed to be backwards compatible (so they are supposed to all work with each other).
(I'm pretty sure the XDA-2 uses USB 2 physical mode.)

The USB audio class used by a particular device is a separate thing entirely...
UAC1 (USB audio class 1) is supported internally by both Apple and Windows computers - without extra drivers.
UAC2 is supported internally by Apple computers, and now by the absolute latest version of Windows 10, but requires drivers for older versions of Windows.
Many newer Linux versions support both.
UAC1 is generally limited to 24/96k; higher sample rates usually require UAC2.
(The XDA-2 uses ONLY USB AUDIO CLASS 2.)

WASAPI is a Windows driver standard - and should work with any of the above.

Exactly how the device is described depends on the identifying information in the device itself and on the version of Windows you have.
"2-USB2.0 High-speed True HD Audio" is what you'll normally see with an XDA-2 connected to a Windows computer.
For whatever reason, you may or may not see the "SPDIF" designation... which describes some of the internal configuration on the USB interface chip in the XDA-2.
(The first number 2 is the driver instance.... and so may be a different number - or no number - if you have installed multiple drivers.)

May 22, 2017 9:51:13 GMT -5 frenchyfranky said:

I'm not 100 % Sure, but if I remember correctly Wasapi using USB I mode, so you can use a USB II port but you should using only USB I compatible mode. With your described "SPDIF out (2-USB2.0 High-speed True HD Audio" mode it could be not compatible with Wasapi.

[frenchyfranky]

Thanks KeithL for correcting me, as I said, I wasn't sure.

Good lesson for me, next time I will let you answering technical question