Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-md06.r1000.mx.aol.com (Internet Inbound) with ESMTP id CF2CE3800008C; Sat, 1 Oct 2011 14:32:02 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1RA4L9-0001fu-Bm for rs_out_1@blacksheep.org; Sat, 01 Oct 2011 19:31:11 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1RA4L8-0001fl-Sa for rsgb_lf_group@blacksheep.org; Sat, 01 Oct 2011 19:31:10 +0100 Received: from mail-iy0-f171.google.com ([209.85.210.171]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1RA4L6-0008DE-1U for rsgb_lf_group@blacksheep.org; Sat, 01 Oct 2011 19:31:10 +0100 Received: by iagv1 with SMTP id v1so5372350iag.16 for ; Sat, 01 Oct 2011 11:31:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=WSu7WX2GBz3N1N8h96Wmiiwi0WdV8LUXJ1iAo1WNS/o=; b=jqrfnZopd61anjxjE9hH39mz0RBxukG0W5XASOc4d36WcDnj7fIcmNybkqFiQzlhtI l/Ifmketr9ZJWxvoOXsB8TSpZtw8P8WC7aZd/teMW2qeEybFsa+GldLRIb83eLAdmvhF jVK7eBo5xDyBkfbMxW8SoT7gcxGhcvPqbUgLM= MIME-Version: 1.0 Received: by 10.231.8.197 with SMTP id i5mr7171744ibi.27.1317493861788; Sat, 01 Oct 2011 11:31:01 -0700 (PDT) Received: by 10.231.207.78 with HTTP; Sat, 1 Oct 2011 11:31:01 -0700 (PDT) In-Reply-To: References: <1E325E48AB014742B4F4B0E530BCEAA4@AGB> Date: Sat, 1 Oct 2011 19:31:01 +0100 Message-ID: From: Andy Talbot To: rsgb_lf_group@blacksheep.org X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: Re: LF: Real time Audio frequency translation (software) Content-Type: multipart/alternative; boundary=00151773ea68a02b8704ae40f143 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.9 required=5.0 tests=HTML_30_40, HTML_FONTCOLOR_UNSAFE,HTML_MESSAGE 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-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:436819968:93952408 X-AOL-SCOLL-URL_COUNT: 0 X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-m001.1 ; domain : gmail.com DKIM : pass x-aol-sid: 3039ac1d605a4e875ca22b09 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none --00151773ea68a02b8704ae40f143 Content-Type: text/plain; charset=ISO-8859-1 VAC - will probably let you do that. You can set up several virtual sound cards and patch around on a virtual backplane But why not get multiple sound cards and have all the flexibility of audio patching? You only need a low cost headphone dongle (although avoid the 99p EBay ones - they are seriously grim!) Remember to isolate the DC on headphone output though - they often used a balanced output with +2V on the common headphone connector. Mic-In has a real ground though Andy 'jnt On 1 October 2011 19:16, Graham wrote: > ** > Spec-lab .. but can an application 'look' at spec-lab as if it was > a sound card ......without the need for a second card and a wire > jumper ? > > *From:* Andy Talbot > *Sent:* Saturday, October 01, 2011 7:09 PM > *To:* rsgb_lf_group@blacksheep.org > *Subject:* Re: LF: Real time Audio frequency translation (software) > > I suspect Spectrum lab can doi. > > You could also run one of the SDR radio packages, receiving in the range 0 > - 20kHz ish and generating SSB > Use VAC, or better, an additional soundcard with the audio wrapped-round > > Or an external LF mixer (see the latest RadCom :-) > > Andy > www.g4jnt.com > > > > On 1 October 2011 18:44, Graham wrote: > >> ** >> Is there a simple way to translate audio frequency in real >> time ..??? >> >> There are 'Bat translators' Ultrasonic to base band .. >> >> But say you have 12 KHz of audio and want to present this to >> say ... wspr... at 1500 Hz . or some other system at say 2 KHz >> >> Is there a 'virtual' mixer that could be installed as some sound >> card or similar ? >> >> Tnx >> >> Graham .. >> >> >> > > > --00151773ea68a02b8704ae40f143 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
VAC - will probably let you do that.=A0=A0 You can set up several virt= ual sound cards and patch around on a virtual backplane
=A0
But why not get multiple sound cards and have all the flexibility of a= udio patching?=A0=A0 You only need a low cost headphone dongle (although av= oid=A0the 99p EBay ones - they are seriously grim!)=A0=A0=A0=A0
=A0
Remember to isolate the DC on headphone output though - they often use= d a balanced output with +2V on the common headphone connector.=A0 Mic-In= =A0has a=A0real ground though
=A0
Andy
'jnt


=A0
On 1 October 2011 19:16, Graham <g8fzk@g8fzk.fsnet.co.uk> wrote:
Spec-lab=A0 .. but=A0 can an applicati= on=A0 'look'=A0 at=A0 spec-lab=A0=A0 as if it=A0 was a=A0 sound car= d ......without the=A0 need=A0 for a=A0second card and a =A0wire=A0 jumper= =A0 ?

I=A0suspect Spectrum lab can doi.=A0=A0
=A0
You could also run one of the SDR radio packages, receiving in the ran= ge 0 - 20kHz ish and generating SSB=A0=A0=A0=A0
Use VAC, or better, an additional soundcard with the audio wrapped-rou= nd
=A0
Or an external LF mixer (see the latest=A0 RadCom :-)
=A0
Andy
www.g4jnt.com<= /div>


=A0
On 1 October 2011 18:44, Graham <g8fzk@g8= fzk.fsnet.co.uk> wrote:
Is there=A0 a=A0 simple=A0=A0 way=A0 t= o=A0 translate=A0=A0 audio=A0=A0 frequency in real=A0 time=A0 ..??? =
=A0
There are=A0 'Bat translators'= =A0=A0=A0 Ultrasonic to=A0 base=A0 band ..
=A0
But=A0 say=A0 you=A0 have=A0=A0 12 KHz= =A0=A0 of audio=A0 and=A0 want to=A0 present this to=A0 say ...=A0 wspr... = at=A0 1500 Hz . or=A0 some other system at=A0 say=A0 2 KHz
=A0
Is there a=A0 'virtual'=A0 mix= er=A0=A0 that=A0 could be=A0 installed as=A0 some=A0 sound=A0 card or=A0 si= milar ?
=A0
Tnx
=A0
Graham ..


=



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