From mboxrd@z Thu Jan 1 00:00:00 1970 From: Colin Guthrie Subject: Re: Bug in alsa-lib or alsamixer and amixer Date: Sat, 19 Jun 2010 09:13:45 +0100 Message-ID: References: <4C1951F1.4000504@colin.guthr.ie> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from lo.gmane.org (lo.gmane.org [80.91.229.12]) by alsa0.perex.cz (Postfix) with ESMTP id 8ACDB1037FF for ; Sat, 19 Jun 2010 10:15:09 +0200 (CEST) Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1OPtCg-0005Db-WF for alsa-devel@alsa-project.org; Sat, 19 Jun 2010 10:15:03 +0200 Received: from cpc1-sgyl30-2-0-cust258.sgyl.cable.virginmedia.com ([94.173.13.3]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 19 Jun 2010 10:15:02 +0200 Received: from gmane by cpc1-sgyl30-2-0-cust258.sgyl.cable.virginmedia.com with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 19 Jun 2010 10:15:02 +0200 In-Reply-To: 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: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org 'Twas brillig, and Raymond Yau at 19/06/10 01:39 did gyre and gimble: > To simpify the implementation of the slider , a new "PA dB scale" is used > by shift those +12dB(base volume) to 0dB and insist that every sound card 's > minimum_dB is -inf dB , No. -inf dB is -inf dB. If the card does not go down to -inf dB, PA will extend the range in software. If a card only goes down to -12dB minimum the range -12dB -> -infdB will be done in software. Lennart explained this very clearly to you already. > This mean that all sound cards will now have same "PA dB range" , the > volume slider does not need resize or rescaling any more. This is why they > prefer to use percentage to make you believe their calculation of dB is > correct WTF? "prefer to use percentage"? What the hell are you talking about? Col -- Colin Guthrie gmane(at)colin.guthr.ie http://colin.guthr.ie/ Day Job: Tribalogic Limited [http://www.tribalogic.net/] Open Source: Mandriva Linux Contributor [http://www.mandriva.com/] PulseAudio Hacker [http://www.pulseaudio.org/] Trac Hacker [http://trac.edgewall.org/]