Ok, I’m really frustrated trying to figure this out myself - I need air support.
Long story short (or as short as I can make it - feel free to Fast Forward to the Foobar Question at the bottom), I’ve been having USB problems since day one. What happens is, when I power down both the PC and the DAC (say, moving them to another room, or taken them to a friends house), sometimes the PC doesn’t see the DAC anymore. I assumed this was a PC issue, or Windows 8.1 issue, so I did a fresh Windows 7 x64 install on a decent laptop…and it too can’t see the DAC. So I grabbed my trusty 5 year old beater Toshiba (that I’m on now), and it too couldn’t see the DAC. So the USB has been down since last Tuesday after a listening session at a friends house. During this time, I’ve tried several USB cables, uninstalling JRiver (since I’m using only Foobar now), messing with foobar settings etc. Finally, I was just about to give up, and I powered down the DAC from the back switch, let it sit for 5 minutes, powered it back up…and suddenly the Media PC can see it. Tried my laptop, no go. Power cycled from back switch, and now my laptop can see it. Frustrating!
Foobar Question: somewhere along the way I removed the DS ASIO driver from Foobar2000. I have no idea how to get that back in there again. I’ve uninstalled and reinstalled the PS Audio USB driver now that the Media PC can see the DAC, and I see the DS DAC in the Device Manager, but I don’t have a PS Audio sound device in windows, nor do I have the DS ASIO driver in Foobar2000. So after all the above USB issues, I’m stuck.
Suggestions? I really wanted to chill and listen tonight, and USB just sounds better than Coax for me (which is how I’ve been getting by all week while trying to figure out this issue that I thought was a specific PC issue)
OK, I guess walking away and venting helped. I went back and poked at it some more because I really wanted to listen tonight - I’ve been looking forward to it all week. Plus I have people coming over for a listening session on Wednesday - so everything has to be working.
I saw the button, Use 64-bit ASIO drivers and decided to Uncheck it. Suddenly the PS Audio driver pops up. I guess it’s not a 64-bit driver…I don’t recall checking this box, but a week of poking around, I suppose I could have. Or maybe it defaulted to that after some other changes. Anyways, it’s working, and I’m listening to a Vinyl Rip of the Flash Gordon soundtrack (random selection to test the fix) and it sound amazing! 
Isn’t that a bitch when that happens! Somehow a button gets pressed that screws things up and you can SWEAR that you didn’t touch it. Drives me crazy when that happens. 
J.P.
About rebooting the DAC – same thing happened to me. I decided to experiment with USB playback and had no DS in sight. I spent 1/2 hour doublechecking settings in foobar . . . couldn’t figure out what was wrong. Finally I recalled reading somewhere about rebooting in such situations, and that did it. I recall also the same thing happening when I installed my NPC. There seems to be some moral here about USB devices.
wingsounds13 said
Isn't that a bitch when that happens! Somehow a button gets pressed that screws things up and you can SWEAR that you didn't touch it. Drives me crazy when that happens. :-)
J.P.
Yeah, but the thing is, I went through so many different changes, I must have changed it. Seriously, I did everything but reinstall the OS, all because I thought it was a PC issue.
magister said
About rebooting the DAC -- same thing happened to me. I decided to experiment with USB playback and had no DS in sight. I spent 1/2 hour doublechecking settings in foobar . . . couldn't figure out what was wrong. Finally I recalled reading somewhere about rebooting in such situations, and that did it. I recall also the same thing happening when I installed my NPC. There seems to be some moral here about USB devices.
And I did power cycle the DS, I just don't recall if I used the power switch on the back or not. Now I know to start fresh with a power cycle from the back.