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Re: updating PCI device name after loading driver
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Re: updating PCI device name after loading driver


  • Subject: Re: updating PCI device name after loading driver
  • From: Gagan Sidhu via Coreaudio-api <email@hidden>
  • Date: Thu, 2 Feb 2023 19:26:33 -0700

hello brian,

the headphone impedance to which i refer is a unique property of the xonar essence ST(X) cards.

per Clemens Ladisch, the windows driver allows users to select one of four values (-32, -24, -12, 0) that can increase the volume output of the jack.

these values act as offsets when you’re changing the master volume.

in terms of why HALLab is necessary for this: well at this time the master volume already has an output selector that allows us to choose either speaker out, back headphone jack, or front headphone jack.
-so i can’t add another selector to the ‘all channels’ property
-so what i do is i get a little clever and attach another audioselector, but this time to the frontleft channel ID and that way i can choose my impedance value without disturbing my master output’s volume or selected output.

here’s a gif i made. i hope it fits this time.

Thanks,
Gagan

On Feb 2, 2023, at 6:04 PM, brianw <email@hidden> wrote:

Looks like you got an answer to your other questions, so congrats on the successes.

Meanwhile, I'm curious about the headphone jack impedance settings. Is this a standard property that is not presented by AudioMIDISetup.app? ... or is it a custom property that is visible in HALLab only because HALLab shows all properties? ... or something else I haven't thought of?

Glad to see this list active and documenting solutions.

Brian

On Feb 2, 2023, at 2:05 PM, Gagan Sidhu wrote:
gotta use HALLab if i want to adjust the headphone jack impedance settings, but that’s really not a big deal.



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References: 
 >updating PCI device name after loading driver (From: Gagan Sidhu via Coreaudio-api <email@hidden>)
 >Re: updating PCI device name after loading driver (From: brianw via Coreaudio-api <email@hidden>)

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