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#1 2011-10-26 05:58:29

Chimera
Member
From: Run Level 7
Registered: 2010-03-28
Posts: 43

Apple Earphone Driver?

Anybody know of a driver that will let me use the volume controls on my apple earphones to, well, control the volume? Or how I would catch and process signals from them, maybe write my own driver/script?
Thanks.

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#2 2011-10-26 19:27:24

caligo
Member
From: Stockholm
Registered: 2010-01-10
Posts: 79

Re: Apple Earphone Driver?

I don't think it's possible for the sound card to even receive signals through the headphone port, no matter what piece of hardware sends them.

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#3 2011-10-29 22:43:02

Chimera
Member
From: Run Level 7
Registered: 2010-03-28
Posts: 43

Re: Apple Earphone Driver?

sad
Shouldn't that at least be sound card dependent? I mean, iPods do evidently receive signals through their earphone port. Maybe it's specialized hardware?

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#4 2011-10-30 04:28:29

Cilph
Member
Registered: 2011-05-01
Posts: 29

Re: Apple Earphone Driver?

Don't Apple earphones have four connectors? Tip-Ring-Ring-Sleeve. If one of these is used for the volume control you can forget about using it unless your sound card has the proper connector.

Last edited by Cilph (2011-10-30 04:35:58)

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#5 2011-10-30 04:31:08

Chimera
Member
From: Run Level 7
Registered: 2010-03-28
Posts: 43

Re: Apple Earphone Driver?

What?! Tip-ring-what-huh? I have nooo idea...oh well, I guess alt-up and alt-down isn't too bad.

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#6 2011-10-30 04:36:07

Cilph
Member
Registered: 2011-05-01
Posts: 29

Re: Apple Earphone Driver?

Chimera wrote:

What?! Tip-ring-what-huh? I have nooo idea...oh well, I guess alt-up and alt-down isn't too bad.

After some google research I managed to find some more information. The fourth ring is used for the mic signal as well as control. For some Samsung and HTC phones the mic works in a specific impedance range, while other impedance values determine control functionality. This should give you some general idea on how it works. Again, unfortunately unless you have a soundcard with a 4-ring connector which can read impedance values, you're out of luck. If you like tinkering, I'm sure it's possible with a modified connector and a microcontroller.

As for Tip-Ring-Sleeve: http://en.wikipedia.org/wiki/TRS_connector That's what a 3.5mm plug is called.

Last edited by Cilph (2011-10-30 04:37:12)

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