Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-da03.r1000.mx.aol.com (Internet Inbound) with ESMTP id 382AB38000091; Sat, 12 Jan 2013 09:51:03 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Tu2Ot-0008NH-OG for rs_out_1@blacksheep.org; Sat, 12 Jan 2013 14:49:35 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Tu2Os-0008N8-PF for rsgb_lf_group@blacksheep.org; Sat, 12 Jan 2013 14:49:34 +0000 Received: from nm15-vm0.bullet.mail.ird.yahoo.com ([77.238.189.216]) by relay1.thorcom.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.77) (envelope-from ) id 1Tu2Oo-0004T4-RN for rsgb_lf_group@blacksheep.org; Sat, 12 Jan 2013 14:49:33 +0000 Received: from [77.238.189.53] by nm15.bullet.mail.ird.yahoo.com with NNFMP; 12 Jan 2013 14:49:09 -0000 Received: from [212.82.108.246] by tm6.bullet.mail.ird.yahoo.com with NNFMP; 12 Jan 2013 14:49:09 -0000 Received: from [127.0.0.1] by omp1011.mail.ird.yahoo.com with NNFMP; 12 Jan 2013 14:49:09 -0000 X-DKIM-Result: Domain=yahoo.co.uk Result=Good and Known Domain X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 875794.63500.bm@omp1011.mail.ird.yahoo.com Received: (qmail 11190 invoked by uid 60001); 12 Jan 2013 14:49:09 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.co.uk; s=s1024; t=1358002149; bh=LBW7ZThvy+7S69hT1NJZRFdrtpUznBMfMJ8jUSg8Iqw=; h=X-YMail-OSG:Received:X-Rocket-MIMEInfo:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=5+7DDjOrKaCP6ouoCCSGEvk6eJfyE5zKXIdKJTX6gbYHghsgnfRoq7BynmNww7noD9O7plZ6u8Xmz1R8ZSawvdeuZN5iR1fjZoL3GHaVXqsv/U8oJCNoizf6gRiWl99u+mxX6hLirpHtIBOR7eSZ/v7AQtnt9uqMtTf+UDPfsyA= DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.co.uk; h=X-YMail-OSG:Received:X-Rocket-MIMEInfo:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=6C809hPHrQEgE8Jq+B0IkU4cdHPomluR4NKlgfNvYJcV3fD8Aeaw+uvBMGS/VwYRzG5KJQ8yDEPM4dAOhJZDezY3Uosbkm/CLHqpA74S9GjS8zJfDHu4vkilUnKas2331o3XJHucxIzX08AF4BQVeekrkybL/J320fJayg++ims=; X-YMail-OSG: 6KS5pCUVM1kVB6Vu5u38HjaA17mV4k2zSUuyU1Gpfb8yEhK Z2_D8BVlCquKFw9mH5JgLWfXuOFI1m18LG7OQKl8xcTzvFsPraK1iALjpuPb Tyi9FhPldlk0nCjuiB0iJ.V0Nf6R7Yf0X0_3V86YhZJYxuJBTvDAn8tQcpdp tYkdVfrGr09DzT_Yy6RozY25VZLX4u_E5T8.kffGI8pJFImrFGRyNdD7ZhQQ Wv9xg0p5uNT8uvGWdlv1XhsEjZfbjIEW0NQPgXgcwx65bD3UM4.Ol9k9ZNVG bXAiRA69CVlPddKMqx9neqZd1k4n0Ue56fh.nfJHc5873AhN0NYUWVS3Ud.S u_GUKGr9_MnWb0pARFvhL0LgN3dMrSXf5v4weKINHUzRYCDWeYnHAlzXGZlH yWc5RbV3tv_oKEQ0CT3e.Z9UBvh7E2m_ha52M63_HvOPsV28Dpkajp_.b87W ytIOSNEpcU5pSXVy7PRXCvSS8CnubIm9pHiNIsldntjeDHQrKlIO9HMRay2G gbyv71m3q1uugwbP1TYZgvM0RumnL2rgUJ5fpDTUQ4d4eHywHu3aXKlGvIQx oHR4_xRNET87PqkgiKQ5xLFiSkOYeMKhDCsszK3Qo_5tTIHKY7kptysm8Hfe TcX8.Kn.LYB9WCViSZmNQ6TI- Received: from [31.51.148.86] by web133206.mail.ir2.yahoo.com via HTTP; Sat, 12 Jan 2013 14:49:08 GMT X-Rocket-MIMEInfo: 001.001,V2VsbCBkb25lIE1hcmN1cyBhbmQgY28uCsKgClRoYW5rIHlvdSBmb3IgeW91ciBpbm5vdmF0aXZlIGNvbnRyaWJ1dGlvbnMgdG8gSGFtIFJhZGlvLiBQcm92aW5nIHRoYXQgZXZlbiB3aXRoIGN1cnJlbnQgdGVjaG5vbG9neSB0aGUgbGltaXRzIGNhbiBiZSBwdXNoZWQgZnVydGhlci4KwqAKSW4gdGhlIFVLIChhbmQgSSBhbSBzdXJlIGVsc2V3aGVyZSkgdGhlcmUgaXMgYSBzaW5nbGUgY2hhbm5lbCBWSEbCoFBhcnJvdCB0eXBlIHJlcGVhdGVyIHdoaWNoIGlzIG9wZXJhdGVkIGluIGEgc2ltaWxhciB3YXkgd2gBMAEBAQE- X-Mailer: YahooMailWebService/0.8.130.494 References: <871180718.807959.1357202851097.JavaMail.open-xchange@email.1und1.de> <8CFB7BD49F0E58C-6E8-60E@webmail-d164.sysops.aol.com> <4D45055C381D4BECA4B1BEF1254E1059@Black> <1751FF6A14644CC7A968E35A554BF7C4@Black> Message-ID: <1358002148.84705.YahooMailNeo@web133206.mail.ir2.yahoo.com> Date: Sat, 12 Jan 2013 14:49:08 +0000 (GMT) From: M0FMT To: "rsgb_lf_group@blacksheep.org" In-Reply-To: MIME-Version: 1.0 X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Well done Marcus and co.  Thank you for your innovative contributions to Ham Radio. Proving that even with current technology the limits can be pushed further.  In the UK (and I am sure elsewhere) there is a single channel VHF Parrot type repeater which is operated in a similar way where you speak, drop carrier, hear your own transmission rebroadcast and then wait for a reply which some times can be heard directly on the channel and is then re-enforced by the Parrot in the following transmission. It is slow and laborious but many stations use it.  I guess the difference is that you have an added element of delay each way for audio frequency com/decompression which amounts to the Parrot in the above case rebroadcasting each transmission only longer by a factor..  Like to hear an audo file? [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [77.238.189.216 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (m0fmt[at]yahoo.co.uk) 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 78d45eae26b8e09cb3b944588f353c28 Subject: Re: LF: Slow Voice - testing on 137.0 kHz Content-Type: multipart/alternative; boundary="131296447-2112117833-1358002148=:84705" 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_FONT_BIG, HTML_MESSAGE,TO_ADDRESS_EQ_REAL 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-AUTHENTICATION: mtain-da03.r1000.mx.aol.com ; domain : yahoo.co.uk DKIM : fail x-aol-sid: 3039ac1d404b50f17857028a X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none --131296447-2112117833-1358002148=:84705 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Well done Marcus and co.=0A=C2=A0=0AThank you for your innovative contribut= ions to Ham Radio. Proving that even with current technology the limits can= be pushed further.=0A=C2=A0=0AIn the UK (and I am sure elsewhere) there is= a single channel VHF=C2=A0Parrot type repeater which is operated in a simi= lar way where you speak, drop carrier, hear your own=C2=A0transmission rebr= oadcast and then wait for a reply which some times can be heard directly on= the channel and is then re-enforced by the Parrot in the following transmi= ssion. It is slow and laborious but many stations use it.=0A=C2=A0=0AI gues= s the difference is that you have an added element of delay=C2=A0each way f= or audio frequency com/decompression which amounts to the Parrot in the abo= ve case rebroadcasting each transmission only longer by a factor..=0A=C2=A0= =0ALike to hear an audo file?=0A=0A=0A73 es GL Pete M0FMT IO91UX=0A=0A=0A>_= _______________________________=0A> From: Markus Vester =0A>To: rsgb_lf_group@blacksheep.org =0A>Sent: Saturday, 12 January 2013= , 14:03=0A>Subject: LF: Slow Voice - testing on 137.0 kHz=0A> =0A>=0A>=EF= =BB=BF =0A>Yesterday morning I have =0Auploaded a new version SlowVoice v0= .2 tohttp://www.df6nm.bplaced.net/slowvoice/SlowVoice.zip =0A>I have rework= ed some details of the timing, and =0Aadded simplified scripts for receive-= only and transmit-only in mono mode. The =0Aserial port PTT control utility= =C2=A0has also been=C2=A0modified =0Ato=C2=A0function=C2=A0under WinXP.=0A>= =C2=A0 =0A>This afternoon=C2=A0I=C2=A0am sending=C2=A0a few slow voice test= s with 3 =0Atimes deceleration in 1-minute frames. The=C2=A0800 Hz wide pas= sband=C2=A0is =0Acentered on 137.0 kHz, thus 136.6 to 137.4 kHz=C2=A0corres= ponds to 0.3 to 2.7 =0AkHz audio.=C2=A0Attached screenshot=C2=A0shows=C2=A0= the narrow SSB signal on the =0ATwente WebSDR tuned=C2=A0to 135.5 kHz USB.= =C2=A0I used a narrow passband=C2=A0to =0Aimprove=C2=A0rejection for DCF an= d HGA. This audio=C2=A0around fc=3D1500 =0AHz=C2=A0was fed=C2=A0to the rece= ive-only utility, which then produced=C2=A0clear =0Aspeech=C2=A0during 20 s= econds of each=C2=A0minute.=C2=A0 =0A>=0A>I intend to=C2=A0run some more te= st=C2=A0transmissions this afternoon, =0Astarting now 14 UT. Any=C2=A0repor= ts=C2=A0would be=C2=A0much appriciated! =0A>=0A>Best 73, =0A>Markus (DF6NM)= =C2=A0=C2=A0 =0A>=0A>=C2=A0 =0A>=C2=A0 =0A>----- Original Message ----- =0A= >From: Markus Vester =0A>To: rsgb_lf_group@blacksheep.org =0A>Sent: Tuesd= ay, January 08, 2013 11:31 PM =0A>Subject: LF: Slow Voice utility =0A>=0A> = =0A>A=C2=A0few minutes ago=C2=A0I have uploaded an =0Aexperimental=C2=A0Slo= wVoice script to =0A>http://www.df6nm.bplaced.net/slowvoice/SlowVoice.zip = =0A>=C2=A0 =0A>The main purpose is to be able to convey=C2=A0high =0Aqualit= y speech=C2=A0in less than 800 Hz on the RF side, as prescribed by German = =0ALF and MF regulations.=C2=A0By default,=C2=A0an audio band of 300 to 270= 0 Hz is =0Aslowed by a factor of 3 and upconverted to 1500 Hz center freque= ncy. Thus=C2=A0a =0Arange of 1200 to 2000 Hz=C2=A0is fed to the SSB=C2=A0tr= ansmitter. As an aside =0Abenefit we get a very much welcome=C2=A05 dB impr= ovement in SNR. =0A>=C2=A0 =0A>Like JT9-1, the procedure is clock-synchroni= zed in =0Afixed one-minute time slots. At the beginning of the minute, the = transmitting =0Astation is asked to speak for 20 seconds.=C2=A0It feels a b= it like=C2=A0to =0Aspeaking to a telephone answering machine ;-) The=C2=A0s= low converted output of =0Athe growing audio buffer begins to play immediat= ely, and will go on=C2=A0during =0Athe whole minute. On the receive side, f= ast replay begins at second number 40, =0Aand=C2=A0the shrinking buffer wil= l finally be used up by the end of the =0Aminute. =0A>=C2=A0 =0A>The SlowVo= ice.bat script is set up for full duplex =0Aoperation. One channel is suppo= sed to handle the transmit side (eg. mic =0Aconnected to=C2=A0left input,= =C2=A0transmitter to left output), while the other =0Achannel has the recei= ver=C2=A0fed to=C2=A0the input and phones on the output. =0AThis is symmetr= ical, and there is no further need to switch audio pathways =0Abetween TX a= nd RX. It is also possible to monitor=C2=A0the result of one's own =0Atrans= mission, eg. by=C2=A0physically connecting left line out to right in. If = =0Ayou want you can use=C2=A0SpecLab=C2=A0in conjunction with=C2=A0Virtual = Audio =0ACable to preprocess both the=C2=A0mic and receiver audio inputs. I= n this case =0AVAC will have to be selected as the standard audio input dev= ice before the =0Arunning the script. =0A>=C2=A0 =0A>Whether a=C2=A0slots i= s used for=C2=A0TX or=C2=A0RX =0Ais not controlled by the software but only= by the user's PTT. I have included =0Atwo extra scripts which are supposed= to activate the serial=C2=A0handshake lines =0A(RTS and DTR) on either=C2= =A0even or odd minutes. Unfortunately the=C2=A0port =0Acontrol does not see= m to work on my=C2=A0XP machine with an external USB to =0Aserial converter= , so for the time being you=C2=A0may have to do=C2=A0with =0Aeither=C2=A0vo= x control or manual=C2=A0switching. =0A>=C2=A0 =0A>I haven't gotten around = writing=C2=A0more detailed =0Ainstructions, but some basic hints have been = included in the SlowVoice script. Similar to the first slow WSPR experiment= s, the =0Awhole deceleration / acceleration process is based on=C2=A0Wolf's= sound =0Autilities=C2=A0which you will need to download from=C2=A0the DL4Y= HF=C2=A0web =0Asite.=C2=A0You will have to run the included patch =0Autilit= y once to duplicate SndInput and =0ASndOutpt=C2=A0instances. =0A>=C2=A0 =0A= >Have fun! And please report bugs and other =0Atroubles. =0A>=C2=A0 =0A>73,= Markus (DF6NM) =0A>=C2=A0 =0A>=C2=A0 =0A>=C2=A0 =0A>=C2=A0 =0A>----- Origi= nal Message ----- =0A>From: Markus Vester =0A>To: rsgb_lf_group@blacksheep= .org =0A>Sent: Sunday, January 06, 2013 1:50 PM =0A>Subject: LF: Bandlimit= ed SSB test on 136 kHz =0A>=0A> =0A>... =0A>=C2=A0 =0A>Slow voice transmiss= ion=C2=A0(ie the=C2=A0audio =0Adeceleration/acceleration method originally = used by DK8KW and myself) would =0Abe=C2=A0nicer as it can fit=C2=A0a full = SSB channel into 800 =0AHz.=C2=A0I=C2=A0have been working on a=C2=A0semi-au= tomatic control, with=C2=A0a =0Afixed one minute raster similar to JT9-1. T= his will hopefully allow us to =0Acomfortably exchange one 20 second voice = message per time slot =0A(speak=C2=A0during seconds 0 to 20, concurrent tra= nsmit=C2=A0and=C2=A0receive at =0A1/3 speed from 0 to 60, replay=C2=A0start= ing 40 to 60). Anyone =0Ainterested? =0A>=C2=A0 =0A>... =0A>=0A>=C2=A0carr = --131296447-2112117833-1358002148=:84705 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Well done Marcus and = co.
 
Thank you for your= innovative contributions to Ha= m Radio. Proving that even with current techn= ology the limits can be pushed further.
 
In the UK (and I am sure elsewhere) there i= s a single channel VHF Parrot type repeater which is operated in a sim= ilar way where you speak, drop carrier, hear your own transmission reb= roadcast and then wait for a reply which some times can be heard directly o= n the channel and is then re-enforced by the Parrot in the following transm= ission. It is slow and laborious but many stations use it.
 
I guess the difference is that you have an added element of delay each way for audio frequency com/decom= pression which amounts to the Parrot in the above case rebroadcasting each transmission only longer by a factor..
 
Like to hear an audo file?=

73 es GL Pete M0FMT IO91UX
<= div style=3D"font-family: times new roman, new york, times, serif; font-siz= e: 12pt;">
From:<= /span> Markus Vester <markusvester@aol.com>
To: rsgb_lf_group@blacksheep.org
Sent: Saturday, 12 January 2013, 14:03
Subject: LF: Slow Voice - testi= ng on 137.0 kHz

=EF=BB=BF=0A=0A =0A =0A=0A=0A
=0A
Yesterday morning I have =0Auploaded a new version Sl= owVoice v0.2 to
=0A=0A
I have= reworked some details of the timing, and =0Aadded simplified scripts for r= eceive-only and transmit-only in mono mode. The =0Aserial port PTT control = utility has also been modified =0Ato function under Win= XP.
=0A
<= font size=3D"2" face=3D"Arial"> 
=0A
This afternoon&nb= sp;I am sending a few slow voice tests with 3 =0Atimes decelerati= on in 1-minute frames. The 800 Hz wide passband is =0Acentered on= 137.0 kHz, thus 136.6 to 137.4 kHz corresponds to 0.3 to 2.7 =0AkHz a= udio. Attached screenshot shows the narrow SSB signal on the= =0ATwente WebSDR tuned to 135.5 kHz USB. I used a narrow passban= d to =0Aimprove rejection for DCF and HGA. This audio around= fc=3D1500 =0AHz was fed to the receive-only utility, which then = produced clear =0Aspeech during 20 seconds of each minute.&n= bsp;
=0A
 
=0A
I intend to run some more test&n= bsp;transmissions this afternoon, =0Astarting now 14 UT. Any reports&n= bsp;would be much appriciated!
=0A
 
=0A
Best 7= 3,
=0A
Markus (DF6NM)  
=0A
&= nbsp;
=0A
 
=0A 
=0A
----- O= riginal Message ----- =0A=0A=0A
Sent: Tuesday, Januar= y 08, 2013 11:31 PM
=0A
Subject: LF: Slow Voice utility
=0A

=0A
A&n= bsp;few minutes ago I have uploaded an =0Aexperimental SlowVoice = script to
=0A=0A
 
=0A
The main purpose is to be able to convey = ;high =0Aquality speech in less than 800 Hz on the RF side, as prescri= bed by German =0ALF and MF regulations. By default, an audio band= of 300 to 2700 Hz is =0Aslowed by a factor of 3 and upconverted to 1500 Hz= center frequency. Thus a =0Arange of 1200 to 2000 Hz is fed to t= he SSB transmitter. As an aside =0Abenefit we get a very much welcome&= nbsp;5 dB improvement in SNR.
=0A
 
=0A
Like JT9-= 1, the procedure is clock-synchronized in =0Afixed one-minute time slots. A= t the beginning of the minute, the transmitting =0Astation is asked to spea= k for 20 seconds. It feels a bit like to =0Aspeaking to a telepho= ne answering machine ;-) The slow converted output of =0Athe growing a= udio buffer begins to play immediately, and will go on during =0Athe w= hole minute. On the receive side, fast replay begins at second number 40, = =0Aand the shrinking buffer will finally be used up by the end of the = =0Aminute.
=0A
 = ;
=0A
The SlowVoice.bat script is = set up for full duplex =0Aoperation. One channel is supposed to handle the = transmit side (eg. mic =0Aconnected to left input, transmitter to= left output), while the other =0Achannel has the receiver fed to = ;the input and phones on the output. =0AThis is symmetrical, and there is n= o further need to switch audio pathways =0Abetween TX and RX. It is also po= ssible to monitor the result of one's own =0Atransmission, eg. by = ;physically connecting left line out to right in. If =0Ayou want you can us= e SpecLab in conjunction with Virtual Audio =0ACable to prep= rocess both the mic and receiver audio inputs. In this case =0AVAC wil= l have to be selected as the standard audio input device before the =0Arunn= ing the script.
=0A
=  
=0A
Whether a slots is= used for TX or RX =0Ais not controlled by the software but only = by the user's PTT. I have included =0Atwo extra scripts which are supposed = to activate the serial handshake lines =0A(RTS and DTR) on either = ;even or odd minutes. Unfortunately the port =0Acontrol does not seem = to work on my XP machine with an external USB to =0Aserial converter, = so for the time being you may have to do with =0Aeither vox = control or manual switching.
=0A
 
=0A
=0AI haven't gotten around writing mor= e detailed =0Ainstructions, but some basic hints have been included in the = SlowVoice script. =0ASimilar to the = first slow WSPR experiments, the =0Awhole deceleration / acceleration proce= ss is based on Wolf's sound =0Autilities which you will need to d= ownload from the DL4YHF web =0Asite. You will have to run the included patch =0Autility once to duplic= ate SndInput and =0ASndOutpt instances.
=0A
 
=0A
Have fun! And please report bugs and other =0Atro= ubles.
=0A
 =0A
73, Markus (DF6NM)
= =0A
 
=0A
 
=0A
 
=0A
&= nbsp;
=0A
----- Original Message ----- =0A
From: Markus Vester =0A
=0A=0A<= div>Sent: Sunday, January 06, 2013 1:50 PM
=0A
Subject:<= /b> LF: Bandlimited SSB test on 136 kHz
=0A

=0A
...
=0A
 =0A
Slow voice transmission (ie t= he audio =0Adeceleration/acceleration method originally used by DK8KW = and myself) would =0Abe nicer as it can fit a full SSB channel in= to 800 =0AHz. I have been working on a semi-automatic contro= l, with a =0Afixed one minute raster similar to JT9-1. This will hopef= ully allow us to =0Acomfortably exchange one 20 second voice message per ti= me slot =0A(speak during seconds 0 to 20, concurrent transmit and=  receive at =0A1/3 speed from 0 to 60, replay starting 40 to 60).= Anyone =0Ainterested?
=0A
=  
=0A
...
=
=0A
<= br>
 carr
--131296447-2112117833-1358002148=:84705--