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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Problem solved. <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Ken was right. Thanks Ken. Changing the configuration on the usbradio.conf to flat audio, and not pre-emphasized audio solved the problem and made listening on Allstar much more comfortable. Thanks to all who answered me. <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Now - has anybody actually deployed a node with the Dingotel USB Fob? I picked up two units some time back and want to experiment with them. <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>73, <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Eric 4Z5UG<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Ken [mailto:ke2n@cs.com] <br><b>Sent:</b> Wednesday, May 09, 2012 11:53 AM<br><b>To:</b> Eric Guth<br><b>Cc:</b> app_rpt-users@ohnosec.org<br><b>Subject:</b> RE: [App_rpt-users] Noise reduction on receive audio from Allstar<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='color:#1F497D'>OK – well - you could have an analogous situation there, where you have selected pre-emphasized transmit audio and your rig only needs flat, “microphone’ audio.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Ken<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt'><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Eric Guth <a href="mailto:[mailto:eric@efratnetworks.com]">[mailto:eric@efratnetworks.com]</a> <br><b>Sent:</b> Wednesday, May 09, 2012 12:13 AM<br><b>To:</b> Ken<br><b>Cc:</b> <a href="mailto:app_rpt-users@ohnosec.org">app_rpt-users@ohnosec.org</a><br><b>Subject:</b> Re: [App_rpt-users] Noise reduction on receive audio from Allstar<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>I am referring to audio coming from the link and transmitted to me on my node. <br><br>73,<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Eric. 4Z5UG<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><br>On May 9, 2012, at 3:21 AM, "Ken" <<a href="mailto:ke2n@cs.com">ke2n@cs.com</a>> wrote:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal><span style='color:#1F497D'>Is it possible you are getting discriminator audio from your radio, but telling asterisk that it is “flat” audio?</span><o:p></o:p></p><p class=MsoNormal><span style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span style='color:#1F497D'>That would make everything high pitched and noisy</span><o:p></o:p></p><p class=MsoNormal><span style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span style='color:#1F497D'>Ken</span><o:p></o:p></p><p class=MsoNormal><span style='color:#1F497D'> </span><o:p></o:p></p><div style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt'><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <a href="mailto:app_rpt-users-bounces@ohnosec.org">app_rpt-users-bounces@ohnosec.org</a> <a href="mailto:[mailto:app_rpt-users-bounces@ohnosec.org]">[mailto:app_rpt-users-bounces@ohnosec.org]</a> <b>On Behalf Of </b>Eric Guth<br><b>Sent:</b> Tuesday, May 08, 2012 5:34 PM<br><b>To:</b> <a href="mailto:app_rpt-users@ohnosec.org">app_rpt-users@ohnosec.org</a><br><b>Subject:</b> [App_rpt-users] Noise reduction on receive audio from Allstar</span><o:p></o:p></p></div></div><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>Folks, <o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>I notice that when hams are noisy into their Allstar node or the repeater connected to the Allstar node, the noise on their signal seems to be higher pitch and accentuated. Some folks are always noisy and therefore difficult to copy. Does anyone else have this problem, and has anyone reduced the noise with either software running on the server or some hardware inserted in between the audio from the URI or CM108 dongle to the transmitter? I was thinking a DSP audio filter (more expensive than my whole node). <o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>73, <o:p></o:p></p><p class=MsoNormal>Eric 4Z5UG<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p></div></div></blockquote></div></div></body></html>