Hello Sir Barton,
I have the same gyrocom korea audio card here in Chile, on alsa 1.0.23 i can not go to 24/192 max sample rate only 24/96.
Maybe a downgrade firmware can fix eeprom problem with the 96 KHz sample rate limit?
I think to use this guide found on google, but I not sure at this time
My apologies for my not so good english language.
"1. download the software:
rom update pack:
http://www.audiotrak.co.kr/audiotrak...om/HD2EEPW.zip and
http://www.audiotrak.co.kr/audiotrak...rom/eeprom.zip
driver update pcack:
http://www.audiotrak.co.kr/zeroboard...3264_00975.zip
unzip the three packs you will get two DOS EXEs the driver pack folder
2. uninstall the VIA driver. And you also may need to run the "UnInstall_32.exe" under the "win32\" in the driver pack folder ("x64\" if you are using a 64bit windows) to do some cleanup if you are trying to upgrade from a previous Audiotrak driver. The "UnInstall_32.exe" has some bugs to process the INF files which will crash this program. A simple way to omit this is to temporary move these INF files to another place and after the clean up move them back.
3. tweak your card and update the ROM:
a) power off the computer and uninstall the HD2 card, set jp4 jumper to on (connect the two pins) and keep it on after then. If you change it back the analog will not output any signal. After the tweak you can install it back to your computer.
b) startup to DOS and execute the rom update program "HD2EEPW.exe" restart to DOS again and run "eeprom.exe". If the program output "PASS" the ROM update is performed successfully
4. start up to your windows, the device manager will popup to say new hardware is found. follow the steps to install the driver. Don't forget to add the new driver pack path to the the driver search path. The new hardware will appear as "Prodigy HD2 controller". During installation the device manager will warn you about the "no signature" stuff you have to install anyway. When this driver has been installed successfully two other device will be found. Let the windows install them automatically."
Thanks for your advice.