From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lee Revell Subject: Re: Re: [PATCH] Add support for Acer TravelMate and Date: Wed, 01 Mar 2006 17:51:30 -0500 Message-ID: <1141253491.5860.275.camel@mindpipe> References: <200603012249.k21MnHs8018585@auster.physics.adelaide.edu.au> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <200603012249.k21MnHs8018585@auster.physics.adelaide.edu.au> Sender: alsa-devel-admin@lists.sourceforge.net Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Jonathan Woithe Cc: Rimas Kudelis , alsa-devel@lists.sourceforge.net, Paulo Matias List-Id: alsa-devel@alsa-project.org On Thu, 2006-03-02 at 09:19 +1030, Jonathan Woithe wrote: > > >> I would not be surprised if some vendors were leaving out the DAC from > > >> their CD drives, and expect you to play audio CDs in digital mode. I > > >> believe this is how Windows Media Player works by default (it also > > >> allows it to generate visual effects from the CD audio). > > >> > > > Ah, right. I wasn't aware of that. If that's its default behaviour then > > > perhaps the Acers do expect the OS to use digital mode for playing CDs. If > > > this proves to be the case then we'll revise the "acer" model to omit the CD > > > controls. > > I believe the Gnome CD player and Sound Juicer applications do that too. > > I think they, just like all other Gnome apps, use the Gstreamer > > framework. And I can even see a reason for that - most soundcards only > > have one set of pins for a CD (i.e. only one cd channel) meanwhile many > > new desktops come with two CD drives. Add to this what Lee has > > mentioned, and you get quite a set of reasons to use software to extract > > audio. > > Except it sucks CPU cycles away from more useful tasks and is less capable > of correcting errors in realtime (at least in my experience). Well, those arguments apply to everything vendors do to make their gear cheaper by offloading work to the CPU - Winmodems, non-mixing soundcards, etc... it's just how the industry works these days. Lee ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642