Are you trying to record via line in or mic? Reason I ask is that the mic adc only supports 192/24 according to the specs. I have a bitwig demo and will try recording my bass via line in tonight @32/384 and let you know it goes.

jeffswitzer
Are you trying to record via line in or mic? Reason I ask is that the mic adc only supports 192/24 according to the specs. I have a bitwig demo and will try recording my bass via line in tonight @32/384 and let you know it goes.

Yes I'm aware of that. For testing purposes I used a small Behringer mixer with an RCA to 3.5 mm cable going straight to the line in on the Nu-Audio. I had a guitar plugged into the mixer and had just a bit of gain so it served as a preamp to send a line level signal. I tried recording in both Reaper and Cakewalk Sonar. I spent more time in Cakewalk as I'm more familiar with it. Cakewalk has offered the ability to set sample rates up to 384k for over 10 years, but there is not many cards that go that high. But there obviously has to be some out there else I see no reason to offer that ability if it can never be used.
 
Cakewalk offers you several choices when selecting drivers, WDM, MME, WASAPI, WASAPI SHARED, and of course ASIO. I ASSUMED this card was ASIO but I could not get it to record. I'm not sure what this card should be used as when recording, ASIO or WDM? I tried all the modes and none of them worked. Some had varying results of recording loud static and such. And all had a very disappointing amount of latency.
 
I finally did manage to record some audio at 44khz, but that totally makes no sense if the software is willing and waiting and the card can actually record 32 bit 384 khz audio. And I did confirm the mixer and the cable were working.
 
I think at this point I want to return the card to EVGA during the allowed 14 day return window on the grounds of for me personally the card will not record at 32 bit 384khz like advertised, nor can I get most games to work with 32 bit 384 khz. The only thing that could possibly change my mind is if miraculously new drivers are released over the weekend. Which I highly doubt :(
 
 

I tested 32bit/384 Hz on my Creative AE-5 sound card. Internet/youtube audio will work. Winamp will not work with that sample rate and bit depth selected in windows. I tested GTAV online, Company of Heroes and World of Warcraft. Only game i had sound in was World of Warcraft. If i select 32bit/192 Hz everything works fine. 
 
Like you said, 32bit & 384 khz digital audio is very rare.
 

I finally did get this card to record 32 bit 384 khz so the capability is definitely there meaning the card I got is not defective as far as I know which is good. It was using the free audio recording software Audacity. Unfortunately I think Audacity is really only good for simple digital audio work and not big multitrack projects. But I don't know cause I really don't know much about that program other than simply recording a single take (but its free which is always a plus, sp it cost nothing to try it).
 
But it would probably be pretty cool to use to record some really high quality nature sounds. For the individual and for documentation purposes a high bit rate and sample rate is to be desired I imagine.