Return-Path: Received: from rly-dg11.mx.aol.com (rly-dg11.mail.aol.com [172.19.151.95]) by air-dg04.mail.aol.com (v126.13) with ESMTP id MAILINDG042-6044b258087379; Sun, 13 Dec 2009 19:02:33 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-dg11.mx.aol.com (v125.7) with ESMTP id MAILRELAYINDG115-6044b258087379; Sun, 13 Dec 2009 19:02:17 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NJyMY-00038b-4O for rs_out_1@blacksheep.org; Mon, 14 Dec 2009 00:00:30 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NJyMX-00038S-PC for rsgb_lf_group@blacksheep.org; Mon, 14 Dec 2009 00:00:29 +0000 Received: from cmsout01.mbox.net ([165.212.64.31]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1NJyNC-0007gP-AL for rsgb_lf_group@blacksheep.org; Mon, 14 Dec 2009 00:01:11 +0000 Received: from cmsout01.mbox.net (cmsout01-lo [127.0.0.1]) by cmsout01.mbox.net (Postfix) with ESMTP id 827652AC45C for ; Mon, 14 Dec 2009 00:01:11 +0000 (GMT) Received: from cmsapps04.cms.usa.net [165.212.11.133] by cmsout01.mbox.net via smtad (C8.MAIN.3.58V) with ESMTP id XID827NLNaBL7628X01; Mon, 14 Dec 2009 00:01:11 -0000 X-USANET-Source: 165.212.11.133 IN dibene@usa.net cmsapps04.cms.usa.net X-USANET-MsgId: XID827NLNaBL7628X01 Received: from [192.168.1.4] [151.47.223.119] by cmsapps04.cms.usa.net (ESMTPA/dibene@usa.net) via mtad (C8.MAIN.3.53P) with ESMTPA id 368NLNaBi9472M40; Mon, 14 Dec 2009 00:01:08 -0000 X-USANET-Auth: 151.47.223.119 AUTH dibene@usa.net [192.168.1.4] Message-ID: <4B258042.8010305@usa.net> Date: Mon, 14 Dec 2009 01:01:06 +0100 From: Alberto di Bene User-Agent: Thunderbird 2.0.0.23 (Windows/20090812) MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <47E8873B5C254CA9A406AA345E229ED6@Black> In-Reply-To: <47E8873B5C254CA9A406AA345E229ED6@Black> X-Enigmail-Version: 0.96.0 Z-USANET-MsgId: XID368NLNaBJ9472X40 X-Karma: unknown: X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: WSPR 2.0 samplerate Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-AOL-IP: 193.82.116.20 X-Mailer: Unknown (No Version) Markus Vester wrote: > Dear LF, > > I have recently installed WSPR 2.0 on one older XP machine and found > that decodes were erratic, and the frequency readout was about 10 Hz > high. The reason seems to be that the input samplerate is about 0.6 % > low. The output samplerate is however correct. > > The strange thing is that this samplerate error was not present with the > former version 1.12. I now have the two versions running simultaneously > side by side, on the same machine with the same soundcard. WSPR 1.12 is > producing perfect decodes on the correct frequency, whereas 2.0 > reproducibly shows the described effects. It looks like the new version > somehow accesses the soundcard differently. > > Has anybody else experienced this? Out of my fuzzy memory, I seem to recall that Joe changed the sampling frequency of WSPR to 48 kHz (don't know what it was before), I think to better interface with VAC. But don't take my words for granted... it is just a dim flash in my memory... If this is indeed the case, then your sound card has a sampling frequency error when set to 48 kHz, error which wasn't present at the former rate. But better to ask Joe... 73 Alberto I2PHD