[Pkg-alsa-devel] Bug#912824: Distorted sound with some headphones.

Elimar Riesebieter riesebie at lxtec.de
Sun Nov 4 13:17:00 GMT 2018

* Gong S. <pthfdr at protonmail.ch> [2018-11-04 12:54 +0000]:

> No, the connection is not loose.  It looks like that this issue
> only happens on "Apple" earphones (as well as the "Apple mode" on
> some earphones). There is a button on the earphone, and if I hold
> down the button, there is no problem playing. But I cannot hold it
> forever.  The distortion problem is Linux-exclusive. I do not know
> the course. All music files have this problem but not very
> noticable. It becomes noticable with speech. Holding the button
> solves the problem.  The "wrong channel" problem exists in Windows
> too, but not in devices such as an Android phone or a Nintendo
> 3DS. Again, holding the button down solves the problem.  Maybe it
> is related to this:
> https://mashtips.com/apple-headphone-on-android-or-windows/ Apple
> has its own implementation of TRRS and I guess the button disables
> the mic and other "special features".  So it is a hardware problem
> after all. But I hope you to provide some sort of software
> workaround.

How do you think just software can change mixed up GROUND and MIC
contacts on your phone jack? That's really not Debian's nor ALSA's
behalf! Just look for adaptors or something to get your hardware
issue fixed. Ask your search engine for "Apple Headphone on PC"

So I close this bug accordingly.

  From The Collaborative International Dictionary of English v.0.48 [gcide]:
  arsehole \arse"hole`\ ([aum]rs"h[=o]l`), n.
         1. execretory opening at the end of the alimentary canal.
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