From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lee Revell Subject: Re: [linux-audio-dev] muse and /dev/rtc Date: Mon, 22 Nov 2004 13:21:07 -0500 Message-ID: <1101147668.2873.29.camel@krustophenia.net> References: <200411202259.57503.lad@koloro.de> <20041122150120.GB20860@bth05w.ABSp.alcatel.be> <200411221813.23092.rj@spamatica.se> <20041122175312.GA20957@bth05w.ABSp.alcatel.be> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20041122175312.GA20957@bth05w.ABSp.alcatel.be> 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: The Linux Audio Developers' Mailing List Cc: alsa-devel List-Id: alsa-devel@alsa-project.org (added alsa-devel to cc) On Mon, 2004-11-22 at 18:53 +0100, Alfons Adriaensen wrote: > Which leads to the following question I've been asking myself for some time: > > the ALSA sequencer API seems to allow *timestamped* events - you put such > an event in a queue and it will appear at the other end at the right moment. > If this is true, and if ALSA has an high precision timer available to > implement it, why should apps like MusE bother to do the fine timing > themselves ? Yes, my thoughts exactly. You don't even have to use the ALSA sequencer API, you can use the ALSA timer API directly. You get multiple timer sources (system, RTC, sound card). It should also be more portable. For example if your sound card's timer is supported by your ALSA driver like emu10k1 and ymfpci then I think you can use this timer to give better sync with the hardware. ALSA devs, is this correct? Lee ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://productguide.itmanagersjournal.com/