Return-Path: Received: (qmail 6585 invoked from network); 2 Sep 2002 12:28:55 -0000 Received: from marstons.services.quay.plus.net (212.159.14.223) by mailstore with SMTP; 2 Sep 2002 12:28:55 -0000 Received: (qmail 23546 invoked by uid 10001); 2 Sep 2002 12:34:25 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from post.thorcom.com (193.82.116.70) by marstons.services.quay.plus.net with SMTP; 2 Sep 2002 12:34:25 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.10) id 17lqIU-0003Fu-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 02 Sep 2002 13:27:14 +0100 Received: from [165.212.11.110] (helo=cmsoutbound.mx.net) by post.thorcom.com with smtp (Exim 4.10) id 17lqIT-0003Fk-00 for rsgb_lf_group@blacksheep.org; Mon, 02 Sep 2002 13:27:13 +0100 Received: from uadvg129.cms.usa.net (HELO cmsoutbound.mx.net) (165.212.11.129) by cmsoutbound.mx.net with SMTP; 2 Sep 2002 12:26:59 -0000 Received: from usa.net [32.97.110.66] by uadvg129.cms.usa.net (ASMTP/dibene@usa.net) via mtad (CM.1201.1.04A) with ESMTP id 691giBmbF0448M29; Mon, 02 Sep 2002 12:27:05 GMT Message-ID: <3D735909.527CF321@usa.net> Date: Mon, 02 Sep 2002 14:26:49 +0200 From: "Alberto di Bene" X-Mailer: Mozilla 4.79 [en] (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <68.24f982d1.2aa342a6@aol.com> Subject: Re: LF: Argo-SpecLab Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=1.7 required=5.0tests=CTYPE_JUST_HTMLversion=2.31 X-Spam-Level: * Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group jannsen wrote:

I observed that the input level to the soundcard
- Soundblaster with PCI 64V - is indicated on screen by its mixer
when using Argo.
if SpecLab is used there is no indication - see attachment.
how come that? is it intenionally done?

DL4YHF@aol.com wrote:

I think one of the differences between Argo and SpecLab is, that SpecLab makes no attempt at all to change the soundcard's mixer settings (you must do that manually) while Argo has a kind of setup routine which modifies the settings to achieve a reasonable input level (that means without overloading the analog input and without wasting too much of the ADC's resolution).

Uwe, Wolf and the group,

Wolf is mixing up Spectran and Argo.... what Wolf describes is more or less what Spectran does,
but not Argo... Spectran, as it does real-time filtering of the audio signal to apply bandpass, noise reduction
and CW peaking filters, needs to use the sound card in full-duplex mode. This implies messing a bit up
with the mixer. Argo, on the other side, just reads from the sound card the incoming audio, no audio output
is done by it, so Argo keeps its fingers far away from the mixer... the compatibility problems that
Spectran experiences with some sound cards (notably the PCI-64 and some laptop chips) derive from this,
i.e. the variety of different mixer implementation architectures found around, thanks to the sloppy specifications
in this area published by some Bill's underling.

About Uwe's question, frankly I have no answer... Uwe, how does that level meter behave when no
program (neither Argo nor Speclab) is running ? That could give some hints.

73 Alberto I2PHD