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.
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.