Return-Path: Received: (qmail 28397 invoked from network); 12 Nov 2001 13:57:11 -0000 Received: from unknown (HELO murphys-inbound.services.quay.plus.net) (212.159.14.225) by excalibur.plus.net with SMTP; 12 Nov 2001 13:57:11 -0000 Received: (qmail 29513 invoked from network); 12 Nov 2001 13:57:05 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys.services.quay.plus.net with SMTP; 12 Nov 2001 13:57:05 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 163HUE-0008U0-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 12 Nov 2001 13:50:54 +0000 Received: from cmailenv1.svr.pol.co.uk ([213.218.77.53]) by post.thorcom.com with esmtp (Exim 3.33 #2) id 163HUC-0008Tv-00 for rsgb_lf_group@blacksheep.org; Mon, 12 Nov 2001 13:50:53 +0000 Received: from [62.21.137.77] (helo=w8k3f0) by cmailENV1.svr.pol.co.uk with smtp (Exim 3.22 #1) id 163HTW-0001ct-00 for rsgb_lf_group@blacksheep.org; Mon, 12 Nov 2001 13:50:10 +0000 Message-ID: <005701c16b80$f8cf36c0$4d89153e@w8k3f0> From: "Dick Rollema" To: "LF-Group" Subject: LF: Computer as DSP audio filter Date: Mon, 12 Nov 2001 14:48:39 +0100 MIME-Version: 1.0 Content-Type: text/html; charset=windows-1252 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2314.1300 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Content-transfer-encoding: 8bit

Dear OM,

I have been told there exists a computer program that not only presents received signals as a waterfall display but can also make one of the signals being heard as audio via the computer speakers.

In that way the computer can act as a DSP audio filter, perhaps even for normal speed CW provided an appropriate bandwidth is selected.

Anyone know more about this program?

73, Dick, PA0SE