From alsa-devel-owner@alsa.jcu.cz  Thu Nov 26 09:33:58 1998
Received: from bologna.nettuno.it (bologna.nettuno.it [193.43.2.1])
	by marvin.jcu.cz (8.9.1a/8.9.1) with ESMTP id JAA21054
	for <alsa-devel@jcu.cz>; Thu, 26 Nov 1998 09:33:32 +0100
Received: from cineca.it (pc-venturi.cineca.it [193.204.122.21])
	by bologna.nettuno.it (8.8.6/8.8.6/NETTuno 3.1) with ESMTP id JAA07328
	for <alsa-devel@jcu.cz>; Thu, 26 Nov 1998 09:33:21 +0100 (MET)
Message-ID: <365D20B5.C1D10E4F@cineca.it>
Date: Thu, 26 Nov 1998 10:34:45 +0100
From: Andrea Venturi <venturi@cineca.it>
MIME-Version: 1.0
To: alsa-devel@jcu.cz
Subject: Re: Virtual array of audio devices. Filters etc. ?
References: <365C3AFD.2C67@bath.ac.uk> <Pine.LNX.3.96.981125194624.3161B-100000@entry.jcu.cz> <19981125222601.28464@dark.x.dtu.dk>
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Reply-To: alsa-devel@alsa.jcu.cz
Sender: alsa-devel-owner@alsa.jcu.cz
Precedence: list

Magnus Norddahl wrote:
> 
> Quoting Jaroslav Kysela (perex@jcu.cz):
> 
> > We have big discussion about this, but seems that user space is more
> > reasonable for these things:
> >
> > PCM stream ---> Audio Server -> conversion -> filters -\
> > PCM stream ---> Audio Server -> conversion -> filters ---> Kernel driver
> > PCM stream ---> Audio Server -> conversion -> filters -/
> >
> > Kernel driver = one exclusive PCM device
> >
> > EsounD is way for example...
> >
> > Any other ideas? Comments?
> 
> I personally dislike the sound server daemon idea (eg. esound). This
> requires recompilation of all the different sound applications I use. An
> example on this is x11amp. I do not have the sourcecode to this application,
> and therefore cannot recompile it to use esound.
> 
> Alsa would become really really cool, if several applications could open
> /dev/dsp at once.
> 


i believe also that some modern audio chip like Ess Maestro II (called
in the .pdf "audio accellerator") could mix up to 64 streams (and with
different dac rates too!) directly in the hardware..


-- 
andrea venturi - cineca - area csd
venturi@cineca.it - +39 0516171536

--
My point?   (Geez, I had one here somewhere, let me ask my wife...)

