Author Topic: usb audio speakers windows sound panel issue  (Read 11177 times)

danwaqar

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usb audio speakers windows sound panel issue
« on: January 19, 2021, 08:07:42 pm »
i have two custom designed hardware usb speakers/mic bars. both work and both have identical descriptors. one of them shows up in windows sound panel with value between 0 to +.1 dB whereas other works fine from 0 to +20.0 dB
The bmacontrols and bmcontrol array values of both are same. can someone shed light where i am going wrong. i have attached images to show the problem[/img]

Renate

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Re: usb audio speakers windows sound panel issue
« Reply #1 on: January 21, 2021, 07:41:46 am »
Do they have the same VID/PID? Do they have serial numbers? Do they have different serial numbers?
Did you make the INF files? Have you been changing them during development?

I would try unplugging them both, deleting the specific entries in HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Usb
Reboot, plug them in, check to make sure that they have the same drivers.
If it gets down to it use "graphedt.exe" or "graphedit.exe" to insert the "filter" and look at the property sheets.

danwaqar

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Re: usb audio speakers windows sound panel issue
« Reply #2 on: January 25, 2021, 12:59:23 pm »
sorry for delayed reply

i figured it out to be a issue at my end. the native old code ported had an endianness issue

Jan Axelson

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Re: usb audio speakers windows sound panel issue
« Reply #3 on: January 27, 2021, 03:22:49 pm »
Thanks for reporting what you found!