From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rene Herman Subject: Re: What does 0dB refer to? (Logitech USB Speakers) Date: Tue, 15 Apr 2008 00:47:37 +0200 Message-ID: <4803DF09.3000000@keyaccess.nl> References: <20080411204610.GA32413@tango.0pointer.de> <20080412133536.GC32491@tango.0pointer.de> <4800FC14.3060804@superbug.co.uk> <200804122025.57165.faber@faberman.de> <48010CF9.4000600@superbug.co.uk> <48010F76.1070209@keyaccess.nl> <20080414164843.GD22115@tango.0pointer.de> <48038DB3.8060301@keyaccess.nl> <20080414172447.GA25050@tango.0pointer.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from smtpq1.groni1.gr.home.nl (smtpq1.groni1.gr.home.nl [213.51.130.200]) by alsa0.perex.cz (Postfix) with ESMTP id 4AA1624639 for ; Tue, 15 Apr 2008 00:44:44 +0200 (CEST) Received: from [213.51.130.139] (port=54466 helo=mx1.groni1.gr.home.nl) by smtpq1.groni1.gr.home.nl with esmtp (Exim 4.60) (envelope-from ) id 1JlXPn-0001V4-Hl for alsa-devel@alsa-project.org; Tue, 15 Apr 2008 00:44:43 +0200 Received: from cc334381-b.groni1.gr.home.nl ([82.73.12.33]:43216 helo=[192.168.0.3]) by mx1.groni1.gr.home.nl with esmtp (Exim 4.60) (envelope-from ) id 1JlXPo-0006uj-0w for alsa-devel@alsa-project.org; Tue, 15 Apr 2008 00:44:44 +0200 In-Reply-To: <20080414172447.GA25050@tango.0pointer.de> 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 On 14-04-08 19:24, Lennart Poettering wrote: > Good joke. ALSA applies quirks an fixes in drivers all the > time. Calling that "hiding the hardware" is stupid. Fixes require a bug. The only bug here is in your brain. > The dB scale is a _relative_ scale. To make any sense there needs to be No, it is not. 0 dB is the value where no on-card amplification takes place. If that seems to turn out louder from one card to the next even with the same equipment behind that line-out then that's unfortunate and we could fix it per-card defaults. What we definitely cannot do is redefine 0 dB to mean something else as you were suggesting for my cs4236 because you can be damn sure _I_ want to know the value where no onboard amplification or attenuation takes place. I control volume on the external amp hooked up to the card. Rene.