ubuntu-phone team mailing list archive

[Sam Segers <sam.sgrs@xxxxxxxxx>]

These 2 ring mini jacks (sleeve, ring 2, ring 1, tip) are very different.
The pin is left audio most of the time, the first sleeve is then right
audio. Most times the sleeve and second ring are used for mic and ground so
when you put then in a 1 ring mini jack, they are both connected to the
ground.

Most commonly, the button on the mic is just a switch between the ground
and ring 2 with a resistance. And the mic is also connected between ring 2
and the sleeve. Even with this "standard" the mic resistance and button
resistance differs.

Sometimes ring 2 and the sleeve are switched and sometimes there are even
more exotic things.

The apple headsets are like the last one but even more complex. The volume
buttons give a specific signal to indicate a press.

These are all hardware compatibilities. You can hack/solder them to switch
the sleeve and ring 2 if that is the issue. That can often be done in the
mic compartment (if you can disassemble this)

Pin-out 's can often be found on http://pinoutsguide.com/HeadsetsHeadphones
Op 5-jun.-2015 11:27 AM schreef "Matthias Apitz" <guru@xxxxxxxxxxx>:

> El día Friday, June 05, 2015 a las 10:27:39AM +0200, Benjamin Tegge
> escribió:
>
> > Sorry it didn't read to me as if no buttons are working at all, I
> > thought it was only about some gestures not working.
>
> I (Matthias, the OP) tested yesterday evening the iPhone6 ear-in headset
> and have the following tested:
>
> - audio in/out works in youtube and phone calls with good quylity;
> - the small + and - buttons on the switch in one of the cables (to right
>   ear) has not audiable effect at all;
> - the button labeled with a small micro picture terminates the phone
>   call on press;
>
> > You can mostly rule out the missing hardware support, because BQ sells
> > mobile phones with Android where users expect this to work (more or
> > less). There is a spec page for this feature in Android[1]. CTIA[2]
> > should be the default by now on every device.
> >
> > What is missing on the Android spec page is a complete listing of the
> > button gestures, I couldn't find any better reference than the one from
> > Audeze for Apple devices[3].
> >
> > I would suggest posting a new topic to the list asking for the state of
> > headset button implementation and gestures.
>
> I will do so; but stay with my original question: which headset could y
> buy for my BQ E4.5? And no, I do not want to use the Apple ones in an
> OpenSource phone :-)
>
>         matthias
>
> --
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