From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43)
	id 1EzwHL-0003k5-8c
	for qemu-devel@nongnu.org; Fri, 20 Jan 2006 08:26:12 -0500
Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43)
	id 1Ezw7w-0001Z5-1J
	for qemu-devel@nongnu.org; Fri, 20 Jan 2006 08:17:07 -0500
Received: from [199.232.76.173] (helo=monty-python.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1Ezuo5-0003y6-2z
	for qemu-devel@nongnu.org; Fri, 20 Jan 2006 06:51:53 -0500
Received: from [62.89.75.144] (helo=bozon2.softax.com.pl)
	by monty-python.gnu.org with esmtp
	(TLS-1.0:DHE_RSA_3DES_EDE_CBC_SHA:24) (Exim 4.34) id 1EzusH-0002jb-I6
	for qemu-devel@nongnu.org; Fri, 20 Jan 2006 06:56:13 -0500
Received: from localhost (localhost.localdomain [127.0.0.1])
	by bozon2.softax.com.pl (Postfix) with ESMTP id A999CDC057
	for <qemu-devel@nongnu.org>; Fri, 20 Jan 2006 12:49:14 +0100 (CET)
Received: from bozon2.softax.pl ([127.0.0.1])
	by localhost (bozon2.softax.pl [127.0.0.1]) (amavisd-new, port 10024)
	with ESMTP id 29964-07 for <qemu-devel@nongnu.org>;
	Fri, 20 Jan 2006 12:49:13 +0100 (CET)
Received: from [16.193.144.98] (unknown [16.193.144.98])
	by bozon2.softax.com.pl (Postfix) with ESMTP id 0B427DC055
	for <qemu-devel@nongnu.org>; Fri, 20 Jan 2006 12:49:12 +0100 (CET)
Message-ID: <43D0D1A4.4090304@softax.com.pl>
Date: Fri, 20 Jan 2006 13:03:48 +0100
From: Sebastian Kaliszewski <Sebastian.Kaliszewski@softax.com.pl>
MIME-Version: 1.0
Subject: Re: [Qemu-devel] [PATCH] PC speaker emulation (fixed)
References: <B4AD9B10-2AB9-4C82-9539-687F8EB8F3FE@gmx.de>	<43C2CA44.9080504@bellard.org>	<66187480-AA25-4749-B6E7-8630B804A6EA@gmx.de>	<Pine.LNX.4.61.0601190326030.4127@home.oyster.ru>	<E05AB379-D924-4CBA-88E6-DFDFDACC2C07@gmx.de>
	<Pine.LNX.4.61.0601200229230.3079@home.oyster.ru>
In-Reply-To: <Pine.LNX.4.61.0601200229230.3079@home.oyster.ru>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Reply-To: qemu-devel@nongnu.org
List-Id: qemu-devel.nongnu.org
List-Unsubscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/pipermail/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: qemu-devel@nongnu.org

malc wrote:
> I'd like to not one thing, namely, you are using FPU to generate the
> samples. This is something Fabrice expressed dissatisfaction with. In
> the case of speaker it might be feasible to switch to fixed-point
> calculation.

One more note about that. PC-speaker generates just plain square wave not 
sine wave, so this would be more realistic. Then fixed point calculation (16 
bit integer part and 16 bit fractional) is easy without all those sin 
calculation.


rgds
Sebastian Kaliszewski