On 2013-07-08 10:48, Takashi Iwai wrote:
Ah, yes, I'd forgotten about that little wrinkle. I don't pretend to be following the exact details of the planned fix here, but just as a high-level remark, this 'extra mic jack' seems very much like an implementation detail for the noise cancellation which Linux does not do in any case (AFAIK). It wouldn't make sense to me to expose it as a 'normal' mic jack, exactly. It's not like you can plug an actual microphone into this 'mic jack' and use it. How will it be exposed exactly after the patch, tiwai?
Well, Tormen's description sounds like it being a mic for a headset, no?
No, at least IIRC - the special headphones that come with the system aren't for voice calling or whatever, they're active noise cancelling earphones. http://forum.notebookreview.com/sony/501220-sony-noise-cancelling-ear-phones... is a thread about them, for e.g.
If so, it's not for a noise canceling, and we can expose the jack and the control of the secondary mic simply as "Headset Mic". In anyway, this will be a separate fix.