From owner-freebsd-multimedia@FreeBSD.ORG Fri Apr 17 13:48:42 2015 Return-Path: Delivered-To: multimedia@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 31346393 for ; Fri, 17 Apr 2015 13:48:42 +0000 (UTC) Received: from albert.catwhisker.org (mx.catwhisker.org [198.144.209.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id E2B0B33F for ; Fri, 17 Apr 2015 13:48:41 +0000 (UTC) Received: from albert.catwhisker.org (localhost [127.0.0.1]) by albert.catwhisker.org (8.14.9/8.14.9) with ESMTP id t3HDmXAe050517; Fri, 17 Apr 2015 06:48:33 -0700 (PDT) (envelope-from david@albert.catwhisker.org) Received: (from david@localhost) by albert.catwhisker.org (8.14.9/8.14.9/Submit) id t3HDmWFT050516; Fri, 17 Apr 2015 06:48:32 -0700 (PDT) (envelope-from david) Date: Fri, 17 Apr 2015 06:48:32 -0700 From: David Wolfskill To: Lars Engels Cc: multimedia@freebsd.org Subject: Re: Sound OK using built-in speakers, but loud "static" with headphones Message-ID: <20150417134832.GU36163@albert.catwhisker.org> Reply-To: multimedia@freebsd.org, David Wolfskill References: <20150416173126.GG36163@albert.catwhisker.org> <20150416174627.GH36163@albert.catwhisker.org> <20150417090740.GI20473@e-new.0x20.net> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="FfX2iGK5t5ehHnsE" Content-Disposition: inline In-Reply-To: <20150417090740.GI20473@e-new.0x20.net> User-Agent: Mutt/1.5.23 (2014-03-12) X-BeenThere: freebsd-multimedia@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Multimedia discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Apr 2015 13:48:42 -0000 --FfX2iGK5t5ehHnsE Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Apr 17, 2015 at 11:07:40AM +0200, Lars Engels wrote: > ... > 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. Brilliant! ... but when I tried connecting a pair of dumb little speakers (no keys; no mic), I still hear static, even after: g1-254(10.1-S)[18] foreach n (`jot 4 0`) foreach? echo " mixer ${n}:" foreach? mixer -f /dev/mixer$n foreach? echo "" foreach? end mixer 0: Mixer vol is currently set to 0:0 Mixer pcm is currently set to 0:0 mixer 1: Mixer vol is currently set to 0:0 Mixer pcm is currently set to 0:0 mixer 2: Mixer vol is currently set to 0:0 Mixer pcm is currently set to 100:100 Mixer speaker is currently set to 59:59 Mixer line is currently set to 1:1 Mixer mic is currently set to 0:0 Mixer mix is currently set to 37:37 Mixer rec is currently set to 0:0 Mixer igain is currently set to 0:0 Mixer ogain is currently set to 100:100 Recording source: mic mixer 3: Mixer vol is currently set to 0:0 Mixer pcm is currently set to 0:0 Mixer rec is currently set to 0:0 Mixer igain is currently set to 0:0 Mixer ogain is currently set to 0:0 Mixer monitor is currently set to 0:0 Recording source: monitor g1-254(10.1-S)[23]=20 I appreciate the rather clever insight, though! :-} Peace, david --=20 David H. Wolfskill david@catwhisker.org Those who murder in the name of God or prophet are blasphemous cowards. See http://www.catwhisker.org/~david/publickey.gpg for my public key. --FfX2iGK5t5ehHnsE Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQJ8BAEBCgBmBQJVMQ8wXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXQ4RThEMDY4QTIxMjc1MDZFRDIzODYzRTc4 QTY3RjlDOERFRjQxOTNCAAoJEIpn+cje9Bk7TjgP/1VsUIRuCHKvdUn2V5LaReqw aDF4qBiSnyo/Lm2P1d1Rq4k+6KerYMT/4TUu9j23fqC0v0YEa//TiCYEqtNrM8SK R76eOEtAjz3I06llMF1K7Pm2YT4UxhuQoIilGrHV69RNghDdDBx6hIz6J/XLb7Qr 9T/iMhoUP2TyPGHxXbNluttOFOTMYW7TLxSxFJTCDP4aSDgmylC6zVe6z4A6qV2F 1POyXw2ExeXBcVQr9ykUA9tnNooESRKhz7DHKXNDIH34yvRfsvXPAj49D52geVhv dXvufZKvcbgQwXwuAP7u70Q9v/j+IGB3TRyVslXx37lnDdnOiaZaggFaCsjg7jMN JfHjMqaHSFCbvJ81KsWcMl/U+MCgejK3Qanb1cSCCaTYNfK8RzvO4buWRoPCIUT0 i2WjWgif911cX7uS7S9v649mRqY0xcPuFqtaIaPfQ4ZUOaObl+/CbxwOBZ6Dlig3 1oxdCDEu3UnFP/9QH9ViSlJ0o5yKZ2xu+yesweTzsJYv/biLQv7Z0bRyS2HpzUBv mEP16Pe/xC300VBOEaPgl1lb+TcINqkzttuDN7OxyYJ6hdPEAexPUxxhPb3xxgUl pXiBi7oCmxuEkNXA9wBqMtXjg2BIgxHHUV0PJVv43kEHpMlM+CkslsITxpVjOIjl 945CzFM5xM4H1uzS/6kM =bkEx -----END PGP SIGNATURE----- --FfX2iGK5t5ehHnsE--