From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lennart Poettering Subject: Re: wrong decibel data? Date: Mon, 14 Jun 2010 20:38:23 +0200 Message-ID: <20100614183823.GB14916@tango.0pointer.de> References: <20100613135349.GB5818@tango.0pointer.de> 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 7F78D2474A for ; Mon, 14 Jun 2010 20:38:53 +0200 (CEST) Content-Disposition: inline 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 On Mon, 14.06.10 16:45, Raymond Yau (superquad.vortex2@gmail.com) wrote: > The correct way is to provide the real ALSA 's 0dB point (Playback volume) > for the user of AC97 sound card so that they can record without any > distortion using line in with the loopback cable connected to line out. Jeez, man, I explained that in my original reply. If I may quote myself: 'On top of that most volume controls should then mark the ALSA 0dB point as "base" volume on the slider, at what PA then calls -y dB. That way we will expose 0dB as maximum hw amplitude uniformly on all sound cards and have a special point on the slider that is hinted to be the "comfort" point. This is all explained on http://pulseaudio.org/wiki/WritingVolumeControlUIs#BaseVolumes' See? It's all explained there. We still show the ALSA 0dB point on our sliders, we just don't call it "0dB" but "base volume". Lennart -- Lennart Poettering Red Hat, Inc. lennart [at] poettering [dot] net http://0pointer.net/lennart/ GnuPG 0x1A015CC4