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Multimedia / Re: Can aswitch.exe be used for always connected/attached usb speakers?
« on: October 05, 2024, 09:08:54 am »
The audio control interface header says bcdADC = 1 so it's a class 1 device. You will need USBAUDIO.SYS.
If you post the complete MMPM2.INI I would be able to say if the install is complete. As I mentioned, not only the drivers need to be installed.
And as Rich said, you should use the "enhanced" package.
If you can hear sound at all, you should check if setting the volume works (it should). If the sound stops playing prematurely, try with a USB 2.x only port (a port connector not colored in blue) if you can find that on this PC or another. If that works without a problem, then I suspect that USB isochronous transfers do not work properly with USB 3.0 (USBXHCD.SYS).
The iso endpoint is of type "adaptive". I don't know if that's what my USB audio device uses. Ill need to check. Maybe that type needs special treatment not yet implemented.
By the way, UNIAUD and the on-board sound support have nothing to do with/no impact when using that soundbar. The audio HW is all contained in that soundbar. The audio HW itself only supports a sample rate of 48 kHz but USBAUDIO.SYS contains rate conversion to/from quite a few other standard sample rates.
If you post the complete MMPM2.INI I would be able to say if the install is complete. As I mentioned, not only the drivers need to be installed.
And as Rich said, you should use the "enhanced" package.
If you can hear sound at all, you should check if setting the volume works (it should). If the sound stops playing prematurely, try with a USB 2.x only port (a port connector not colored in blue) if you can find that on this PC or another. If that works without a problem, then I suspect that USB isochronous transfers do not work properly with USB 3.0 (USBXHCD.SYS).
The iso endpoint is of type "adaptive". I don't know if that's what my USB audio device uses. Ill need to check. Maybe that type needs special treatment not yet implemented.
By the way, UNIAUD and the on-board sound support have nothing to do with/no impact when using that soundbar. The audio HW is all contained in that soundbar. The audio HW itself only supports a sample rate of 48 kHz but USBAUDIO.SYS contains rate conversion to/from quite a few other standard sample rates.