From alsa-user-owner@alsa.jcu.cz  Wed Jun 17 19:40:10 1998
Received: from box.nl (schollevaar.box.nl [194.235.126.1])
	by marvin.jcu.cz (8.8.8/8.8.8) with ESMTP id TAA31393
	for <alsa-user@jcu.cz>; Wed, 17 Jun 1998 19:39:10 +0200
Received: from box.nl (minnie.box.nl [194.235.126.128]) by box.nl (8.8.8/8.6.9) with ESMTP id TAA18468 for <alsa-user@jcu.cz>; Wed, 17 Jun 1998 19:39:01 +0200
Message-ID: <3587F769.2F878F11@box.nl>
Date: Wed, 17 Jun 1998 19:05:45 +0200
From: Niels van der Meiden <tmeiden@box.nl>
MIME-Version: 1.0
To: alsa-user@jcu.cz
Subject: Re: 16 digital stereo channels
References: <199806151628.SAA21653@smtp3.xs4all.nl>
	 <35854F51.7D451F00@ironweb.com>
	 <35858831.13208794@iastate.edu> <4.0.1.19980616110218.00e668b0@xs4all.nl>
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Reply-To: alsa-user@alsa.jcu.cz
Sender: alsa-user-owner@alsa.jcu.cz
Precedence: list

Exyll wrote:

> At 23:08 15-6-98 , you wrote:
> >My knowledge of it is very basic, as I am not a coder, so I could be
> >wrong, but the 14-channel 44khz 16-bit limit is in effect for tracker
> >programs too (like ScreamTracker, Impulse Tracker).  I think it's a
> >hardware limitation, after 14 channels, the quality ramps off depending
> >on how many channels above 14 there are.  These programs don't use the
> >drivers, they write directly to the card, so it's not a software
> >limitation as far as I know.  Either way, we're kind of veering
> >off-topic.  ;)  It *would* be cool to allow multiple voices with
> >hardware mixing on GUS/AWE/etc. cards...
>
> It's about getting 16 stereo channels..  This can be done easily.. BUT not
> at 44k1 Hz.. But 22k05Hz of something..
>

Well, if you really want to know:

Frequency   Active Voices
44100          14
41160          15
38587          16
36317          17
34300          18
32494          19
30870          20
29400          21
28063          22
26843          23
25725          24
24696          25
23746          26
22866          27
22050          28
21289          29
20580          30
19916          31
19293          32


> But this is not the case for Interwave based cards which don't have this
> limitation.
>

_____________________________________________
Niels van der Meiden,
My attitude towards computer related problems:
   main{__asm__(/*forever*/);}
usually does the trick...





