From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lennart Poettering Subject: Re: Verifying mixer dB data/Invalid dB data from USB cards, especially Aureon 5.1 MkII Date: Wed, 17 Feb 2010 14:01:55 +0100 Message-ID: <20100217130155.GC24165@tango.0pointer.de> References: <20100216143200.GB25489@tango.0pointer.de> <20100216144047.GB10586@sirena.org.uk> <20100216154015.GA612@tango.0pointer.de> <20100216210703.GA18109@tango.0pointer.de> <20100216223938.GA23623@sirena.org.uk> <20100216224212.GA1486@tango.0pointer.de> <20100216233825.GB23623@sirena.org.uk> <20100216235658.GA6766@tango.0pointer.de> <20100217111721.GA2032@sirena.org.uk> 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 CE8F0103874 for ; Wed, 17 Feb 2010 14:02:21 +0100 (CET) Content-Disposition: inline In-Reply-To: <20100217111721.GA2032@sirena.org.uk> 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 Wed, 17.02.10 11:17, Mark Brown (broonie@opensource.wolfsonmicro.com) wrote: > > On Wed, Feb 17, 2010 at 12:56:58AM +0100, Lennart Poettering wrote: > > > Nah. I actually don't need this value for PulseAudio. In PulseAudio I > > chose to shift all scales so that maximum amplification becomes 0 dB, > > so that the UIs are similar to how most hifi racks do it, and which I > > Interesting. The hifi equipment I've dealt with typically doesn't > present any units at all in the UI outside of level monitors. My old Yamaha hifi rack had a volume dial where the max was labeled 0 dB and the min setting was -inf dB. My new Yamaha shows the dB level on an LCD screen whever you touch the volume dial, and it too goes from -inf dB to 0 dB. I kinda assumed that stereos from other manufacturers would do the exact same thing, but tbh never checked. Lennart -- Lennart Poettering Red Hat, Inc. lennart [at] poettering [dot] net http://0pointer.net/lennart/ GnuPG 0x1A015CC4