From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lennart Poettering Subject: Re: What does 0dB refer to? (Logitech USB Speakers) Date: Tue, 15 Apr 2008 01:57:45 +0200 Message-ID: <20080414235742.GB19108@tango.0pointer.de> 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> <4803DF09.3000000@keyaccess.nl> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from tango.0pointer.de (tango.0pointer.de [85.214.72.216]) by alsa0.perex.cz (Postfix) with ESMTP id EAAA22463E for ; Tue, 15 Apr 2008 01:57:45 +0200 (CEST) Content-Disposition: inline In-Reply-To: <4803DF09.3000000@keyaccess.nl> 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: Rene Herman Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org On Tue, 15.04.08 00:47, Rene Herman (rene.herman@keyaccess.nl) wrote: > > The dB scale is a _relative_ scale. To make any sense there needs to be > > No, it is not. Oh, really? It's not a relative scale anymore? Ouch, what a mess. Now I went to university and stuff, and now it turns out that they were totally wrong and dB ain't no relative scale anymore. I want my money back! Dude, hush, hush, fix Wikipedia! It still says: "The decibel (dB) is a logarithmic unit of measurement that expresses the magnitude of a physical quantity _relative_ _to_ a specified or implied _reference_ _level_". Lennart -- Lennart Poettering Red Hat, Inc. lennart [at] poettering [dot] net ICQ# 11060553 http://0pointer.net/lennart/ GnuPG 0x1A015CC4