Date: Fri, 17 Apr 2015 11:07:40 +0200 From: Lars Engels <lars.engels@0x20.net> To: multimedia@freebsd.org, David Wolfskill <david@catwhisker.org> Subject: Re: Sound OK using built-in speakers, but loud "static" with headphones Message-ID: <20150417090740.GI20473@e-new.0x20.net> In-Reply-To: <20150416174627.GH36163@albert.catwhisker.org> References: <20150416173126.GG36163@albert.catwhisker.org> <20150416174627.GH36163@albert.catwhisker.org>
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--ffsjeLa00pPTU3fi Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Apr 16, 2015 at 10:46:27AM -0700, David Wolfskill wrote: > On Thu, Apr 16, 2015 at 10:31:26AM -0700, David Wolfskill wrote: > > ... > > How may I diagnose this? > > ... >=20 > I neglected to point out that I have used these headphones on other > devices without perceiving such static -- so I believe that the > headphones themselves are OK. (Sorry for failing to mention that > earlier.) I "saw" the same yesterday on my notebook. It turned out that the earphones I used have keys to control a smartphone and an integrated microphone. Running "mixer mic 0" and "mixer rec 0" muted the static. --ffsjeLa00pPTU3fi Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQF8BAEBCgBmBQJVMM1cXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXQ4RjQwMDE3RTRERjUzMTI1N0FGRTUxNDlF NTRDQjM3RDNBMDg5RDZEAAoJEOVMs306CJ1tbp0H/j7VP9r2Nq938S88425ttcQe Ubvu46n+FYQmKHIXtyBdPs4duCrSpdBqTAcmyzrvQ5MJodiUfsl5vpaqfgda+daC IkpBuIkD/Kdxwtc9e3Td9tqhneEgxXH8ihOU32A//01tMWXpkL0Qzd1yz8Qss7vv maTR3bua7Ef/GiaASOvVaDOXj3N/WWCDWa7xu8mOj3jkg9+JHYSxob4GLRTFHN54 bPuo1ll9AJiEyaO9RGBc+aNBLme0NLUxWnoJ97nFnVpjpkt80UsakJCzS9rvl2NM v1NyPKxhjl4bEQvcUEvHIMQEVOQhfwEqclZqfh3KF+448vU5mOPwsAysI5yFd0E= =AgIr -----END PGP SIGNATURE----- --ffsjeLa00pPTU3fi--
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