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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:windowtext'>Hi Dave,<o:p></o:p></span></p><p class=MsoNormal><span style='color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:windowtext'>As requested, output is below. I’m confused how this might help with audio quality issues – do you mind telling me what sort of clues one would look for?<o:p></o:p></span></p><p class=MsoNormal><span style='color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:windowtext'>Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub<o:p></o:p></span></p><p class=MsoNormal><span style='color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:windowtext'>Bus 002 Device 002: ID 0d8c:013a C-Media Electronics, Inc. <o:p></o:p></span></p><p class=MsoNormal><span style='color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:windowtext'>Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub<o:p></o:p></span></p><p class=MsoNormal><span style='color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:windowtext'>Rob<o:p></o:p></span></p><p class=MsoNormal><span style='color:windowtext'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='color:windowtext'>From:</span></b><span style='color:windowtext'> App_rpt-users <app_rpt-users-bounces@lists.allstarlink.org> <b>On Behalf Of </b>Dave Maciorowski<br><b>Sent:</b> Monday, April 01, 2019 20:17<br><b>To:</b> app_rpt-users@lists.allstarlink.org<br><b>Subject:</b> Re: [App_rpt-users] USB fob choppy/stuttering audio<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p>Hi Rob,<o:p></o:p></p><p>Please copy the output from your lsusb command to a reply email. There may be a clue there.<o:p></o:p></p><p>Thanks.<o:p></o:p></p><p> Dave<br> WA1JHK<o:p></o:p></p><div><p class=MsoNormal>On 4/1/2019 2:14 PM, Rob Noll wrote:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt' id="mid_169da8a3af0_285d_8a0aaba6d19dbbc2946ebd2d88a5e546_nollmail_com"><div><div><p class=MsoNormal>Hi Marshall,<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Thanks for the thought, but it happens with both a transmitter and with a headset.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Rob<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div id=aqm-original><div><div><div class=MsoNormal align=center style='text-align:center'><hr size=2 width="100%" align=center></div><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0><tr><td valign=top style='padding:.75pt .75pt .75pt .75pt'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial",sans-serif'>From: </span></b><span style='font-size:10.0pt;font-family:"Arial",sans-serif'><o:p></o:p></span></p></td><td valign=top style='padding:.75pt .75pt .75pt .75pt'><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial",sans-serif'>Marshall Oldham <a href="mailto:ke6pcv@cal-net.org">ke6pcv@cal-net.org</a><o:p></o:p></span></p></td></tr><tr><td valign=top style='padding:.75pt .75pt .75pt .75pt'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial",sans-serif'>Sent: </span></b><span style='font-size:10.0pt;font-family:"Arial",sans-serif'><o:p></o:p></span></p></td><td valign=top style='padding:.75pt .75pt .75pt .75pt'><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial",sans-serif'>April 1, 2019 16:10:38<o:p></o:p></span></p></td></tr><tr><td valign=top style='padding:.75pt .75pt .75pt .75pt'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial",sans-serif'>To: </span></b><span style='font-size:10.0pt;font-family:"Arial",sans-serif'><o:p></o:p></span></p></td><td valign=top style='padding:.75pt .75pt .75pt .75pt'><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial",sans-serif'>'Users of Asterisk app_rpt' <a href="mailto:app_rpt-users@lists.allstarlink.org">app_rpt-users@lists.allstarlink.org</a><o:p></o:p></span></p></td></tr><tr><td valign=top style='padding:.75pt .75pt .75pt .75pt'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial",sans-serif'>Subject: </span></b><span style='font-size:10.0pt;font-family:"Arial",sans-serif'><o:p></o:p></span></p></td><td valign=top style='padding:.75pt .75pt .75pt .75pt'><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial",sans-serif'>Re: [App_rpt-users] USB fob choppy/stuttering audio<o:p></o:p></span></p></td></tr></table><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'>Rob, </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'>Based on your comments about the telemetry "not sounding choppy when listening to it over the phone."</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'>It could be that RF from your transmitter is getting into your sound fob. Do you have a transmitter hooked up to the USB sound fob? </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'>As a test, disable your transmitter and use clip leads to connect a PC amplified computer speaker to your TX audio line and see if you still have choppy audio. </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'>If you do NOT have choppy audio with the amplified speaker, this surely points to some type of RF getting into your sound fob. </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'>Hope this helps.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'>73 </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'>Marshall - ke6pcv </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'> </span><o:p></o:p></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><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'> App_rpt-users [<a href="mailto:app_rpt-users-bounces@lists.allstarlink.org">mailto:app_rpt-users-bounces@lists.allstarlink.org</a>] <b>On Behalf Of </b>Rob Noll<br><b>Sent:</b> Sunday, March 31, 2019 7:26 AM<br><b>To:</b> <a href="mailto:app_rpt-users@lists.allstarlink.org">app_rpt-users@lists.allstarlink.org</a><br><b>Subject:</b> [App_rpt-users] USB fob choppy/stuttering audio</span><o:p></o:p></p></div></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Good morning all,<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>I’m trying to set up an AllStar node using a USB fob based on the CM119 chip. I’m having issues with choppy/stuttering audio, particularly on telemetry. It’s bad enough that it renders the CW ID meaningless.<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>My original thought was lack of CPU power, but I have tried it on a Raspberry Pi 2, Pi 3, and several virtual machines on a quad-core PC with identical results. Also, the choppiness is NOT as bad when using the full USB driver instead of SimpleUSB, which I believe conclusively rules out CPU power.<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>I’ve also tried a powered USB hub, thinking that the USB device was not receiving enough power, with no improvement.<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>I’ve used the Android mobile app to connect to the node, and the telemetry does not seem to be choppy when listening to it over the app. While I need to do some more testing to say this conclusively, I do believe at this point that my issue is narrowed down to the USB fob itself and/or the specific audio stream being sent to the device.<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>I’m currently searching for a way to alter the sample rate that ASL is sending the audio to the device in.<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Has anyone experienced this, and does anyone have any suggestions?<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Thanks and 73,<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Rob, WX1N<o:p></o:p></p></div><div><p class=MsoNormal>_______________________________________________<o:p></o:p></p></div><div><p class=MsoNormal>App_rpt-users mailing list<o:p></o:p></p></div><div><p class=MsoNormal><a href="mailto:App_rpt-users%40lists.allstarlink.org">App_rpt-users@lists.allstarlink.org</a><o:p></o:p></p></div><div><p class=MsoNormal><a href="http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users">http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users</a><o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>To unsubscribe from this list please visit <a href="http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users">http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users</a> and scroll down to the bottom of the page. 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Enter your email address and press the "Unsubscribe or edit options button"<o:p></o:p></pre><pre>You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem. <o:p></o:p></pre></blockquote><div id=DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2><p class=MsoNormal><o:p> </o:p></p><table class=MsoNormalTable border=1 cellpadding=0 style='border:none;border-top:solid #D3D4DE 1.0pt'><tr><td width=55 style='width:41.25pt;border:none;padding:9.75pt .75pt .75pt .75pt'><p class=MsoNormal><a href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=icon" target="_blank"><span style='border:solid windowtext 1.0pt;padding:0in;text-decoration:none'><img border=0 width=46 height=29 style='width:.4791in;height:.302in' id="_x0000_i1026" src="cid:image001.jpg@01D4E8CB.FA3F3B00" alt="Image removed by sender."></span></a><o:p></o:p></p></td><td width=470 style='width:352.5pt;border:none;padding:9.0pt .75pt .75pt .75pt'><p class=MsoNormal style='line-height:13.5pt'><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#41424E'>Virus-free. <a href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=link" target="_blank"><span style='color:#4453EA'>www.avast.com</span></a> <o:p></o:p></span></p></td></tr></table><p class=MsoNormal><span style='color:windowtext'><o:p> </o:p></span></p></div></div></body></html>