So I purchased the 970 ACX and for the most part it runs like a dream, but I'm having a continuous problem with the audio. A majority of the time, upon starting a game or playing a youtube video, the audio comes out sounding horrendously garbled. For videos it tends to clear up after a moment, but for games it doesn't go away. I have to restart the computer several times before the audio works properly.
 
I've tried uninstalling and reinstalling the nvidia drivers, but it didn't work. I've been looking for a driver sweeper, but none of the ones I've found seem to support nvidia audio drivers. Not to mention that most of the sweeper programs I've found seem to want to install a bunch of different programs onto my computer. Could anyone recommend a legitimate driver sweeper or is there something else amiss here?

MB: Asus Z97-A ATX DDR3 2600 LGA 1150
MB BIOS Version: Not sure where to find this.
CPU: Intel i7-4770k
RAM: 8 GB DDR3
HDD: Seagate Barracuda 1TB
PSU: EVGA 600B 80 Plus Bronze
OS: Windows 8.1 64-bit

I'm getting audio over hdmi. I have Nvidia HD audio drivers and the default HD Audio Device drivers listed in my Device manager. With all the nvidia drivers disabled and only the HD Audio Device enabled I get no sound, but when I have all the nvidia drivers enabled and the HD Audio Device enabled the problem still persists.

Should I remove all current nvidia drivers first?

It worked! Had to restart a few times to make sure it wasn't a fluke, but it worked! Thank you so very much! But if you don't mind me asking, what was causing the problem?

It was that simple a problem eh? Interesting. Well thanks again!

daohaus

Sajin
Here is how to correct your problem...
 
Perform a clean installation of video drivers.

1. Uninstall Precision X/Afterburner if installed, make sure to select "no" to saving profiles if asked. Reboot the machine.
2. Download & save graphics driver  to your desktop. Run it after download is complete. 
3. Select custom advanced install, under custom installation options uncheck all options except the physx system software, if you have a 3D capable monitor and would like to use 3D at some point select the 3D Vision driver also, check mark perform clean install, then click next to install the driver, reboot when asked.
4. Should be good to go now. 

Been having this problem as well and I will try this on my PC when I get home.  Hoping this will solve the problem as well but with a minor twist.  The HD audio drivers for my MOBO is not installing at I've tried it numerous times.  I'm wondering if I should try to install the audio drivers first prior to reinstalling the NVIDIA driver?

Do #2 listed here. Since the HD audio drivers for your MB won't install you should try sweeping only the mb audio drivers with driver sweeper 3.2.0.

yah didn't work.  I removed the realtek driver/creative driver that came w/ the mobo.  Did the install then did the nvidia install making sure NOT to check the HD audio.  But what do you know it installed it anyway, because now the speaker icon on the lower right corner is showing WD32HT1360 
 
I give up

Sajin
 
Are you running windows 10?

yup, i go into the device manager and the multimedia controller has the triangle with the exclamation in it.  Before that it had the high definition audio with the same icon.  I went into my BIOS and enable onboard sound as well.  I've been emailing back and forth with gigabyte as well to resolve.

I wanted to go optical out to my home theater amplifier.  But because of the NVIDIA audio, i'm having to go optical out from the TV to the home theater.  I may upgrade to an actual monitor later on and if the monitor doesn't have an optical out I may be SOL.  I'm just hoping it's not the MOBO.  Just got it this past Friday 

Multimedia Audio controller:
"The drivers for this device are not installed. (Code 28)
There are no compatible drivers for this device.

To find a driver for this device, click Update Driver."
 
what's funny is that i see an onboard "high definition audio controller and device" at location "0" and is working properly but it's not outputting

Gigabyte z170mx gaming 5 mobo running Intel i5 6600k 16gb ram ddr4

still nothing

Device PCI\VEN_8086&DEV_A170&SUBSYS_A0B21458&REV_31\3&11583659&0&FB was configured.
Driver Name: hdaudbus.inf
Class Guid: {4D36E97D-E325-11CE-BFC1-08002BE10318}
Driver Date: 10/29/2015
Driver Version: 10.0.10586.0
Driver Provider: Microsoft
Driver Section: HDAudio_Device.NT
Driver Rank: 0xFF2006
Matching Device Id: PCI\CC_0403
Outranked Drivers:

no i havent the update was to improve ddr xmp so i didnt