From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Vroon Subject: Re: Microphone bias Date: Mon, 13 Jul 2009 11:55:42 +0100 Message-ID: <1247482542.5461.1.camel@localhost> References: <1247475045.1759.5.camel@polyethylene> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============3011780108746358976==" Return-path: Received: from ganymede.vroon.org (ganymede.vroon.org [195.66.242.11]) by alsa0.perex.cz (Postfix) with ESMTP id CF39224452 for ; Mon, 13 Jul 2009 12:55:49 +0200 (CEST) In-Reply-To: <1247475045.1759.5.camel@polyethylene> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: Daniel Drake Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org --===============3011780108746358976== Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-VxIlK2vSTXYiUkGzGk5s" --=-VxIlK2vSTXYiUkGzGk5s Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Mon, 2009-07-13 at 09:50 +0100, Daniel Drake wrote: > We have a choice of 50% or 80% microphone bias on the 2 microphone ports > (one inbuilt, one socket for external devices). Any suggestions on which > one we should pick or how to decide? For the external devices, it tends to depend on the headset. I would suggest going to eBay or a random computer shop and getting a few different ones. Some may require 80% to produce a usable signal, particularly the cheaper ones. > We can't hear any difference between the 2 settings..should we choose > 50% for potential power savings? If your internal mic works fine on 50% bias I would keep it there, yes. > Daniel Regards, Tony V. --=-VxIlK2vSTXYiUkGzGk5s Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.11 (GNU/Linux) iEYEABECAAYFAkpbEq4ACgkQp5vW4rUFj5pf0wCffl3ZjPCJDsfYyVr6MinwBLR5 GPkAoJSrb8tBk7G3nSQoSXC5kiNWLsC7 =F/Rc -----END PGP SIGNATURE----- --=-VxIlK2vSTXYiUkGzGk5s-- --===============3011780108746358976== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel --===============3011780108746358976==--