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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Attempting to use simpleusb-tune-menu on a
BBB using a service monitor (3 kHz deviation, 1 kHz modulation). The output from
the radio (FT-1500M) is the speaker audio out of the back. It seems that full
volume (quite loud on the speaker) is not coming close to enough signal.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>From simpleusb-tune-menu<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Please enter your selection now: 2<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>RX VOICE DISPLAY:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> v
-- 3KHz v -- 5KHz<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>|========>
|<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>This is using 999. If this is linear, or
close, then I doubt the 2x gain amp will provide enough. I'm not sure what I've
done wrong. The input to URIx is pin 21, with 19 gnd. The iaxrpt level is about
2/3 max.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Any thoughts?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Thanks,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Bob<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>k6ecm<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>73<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> arm-allstar
[mailto:arm-allstar-bounces@hamvoip.org] <b><span style='font-weight:bold'>On
Behalf Of </span></b>Doug Crompton via arm-allstar<br>
<b><span style='font-weight:bold'>Sent:</span></b> Monday, June 06, 2016 11:35
PM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">ARM
Allstar</st1:PersonName><br>
<b><span style='font-weight:bold'>Cc:</span></b> Doug Crompton<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [arm-allstar]
simpleusb-tune</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3 color=black
face=Tahoma><span style='font-size:12.0pt;font-family:Tahoma;color:black'>I
find that voice levels are highly dependent on the person speaking, the rig
they are using, the node radio, and probably a dozen other factors.
Generally setting the audio so you see peaks just above 5 khz should be OK.
Some radios have better limiting than othesr and the peaks are well defined. On
some you can see peaks go well above what you would call max but the average is
much lower. One thing you don't want to do is have it set too high. Digital
distortion is very annoying. I often use iaxrpt's level meter for adjusting or
looking at multiple users for comparison. If you are filling the iaxrpt bar graph
to 9o-95% without hitting the edge you are good.<br>
<br>
I often find that one node that shows 80% peaks actually sounds louder than one
that shows 95% peaks. Audio characteristics and equalization can play games
with your ears! I don't think setting using DTMF is always a good idea because
DTMF levels can be quite different than voice through the microphone. <br>
<br>
Some radios like the Chinese variety handhelds have greatly varying audio
levels depending on how far you are from the mic. You almost have to eat the mic
on some of them to have a decent level of audio and then you have breath noise.<br>
<br>
If you use a wide range of radios that you use to talk to your node it is best
to check them all. You may have to come up with an average setting so that the
loudest radio does not distort. <br>
<br>
Talk into the radios the way you would when you are not thinking. If you adjust
it talking right into the mic and then when you aren't thinking you usually
talk 2 inches away the level is not going to be right.<br>
<br>
In the future we hope to have audio processing capability added to the code to
help fix some of these problems. <br id=FontBreak>
</span></font><font face=Calibri><span style='font-family:Calibri'><br>
</span></font><b><font size=5 face=Calibri><span style='font-size:16.0pt;
font-family:Calibri;font-weight:bold'>73 Doug<br>
WA3DSP<br>
http://www.crompton.com/hamradio</span></font></b><font size=5 face=Calibri><span
style='font-size:16.0pt;font-family:Calibri'><br>
<br>
</span></font><font face=Calibri><span style='font-family:Calibri'><o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face=Calibri><span style='font-size:12.0pt;
font-family:Calibri'>> To: arm-allstar@hamvoip.org<br>
> Date: Mon, 6 Jun 2016 20:36:18 -0700<br>
> Subject: [arm-allstar] simpleusb-tune<br>
> From: arm-allstar@hamvoip.org<br>
> CC: <st1:PersonName w:st="on">k6ecm1@gmail.com</st1:PersonName><br>
> <br>
> <br>
> What should I see as I change input audio levels? Is there a recommended
FM<br>
> deviation? Is this the 3KHz and 5KHz? When I get it right, what should the<br>
> display indicate?<br>
> <br>
> Thanks,<br>
> Bob<br>
> k6ecm<br>
> 73<br>
> <br>
> 1) Select USB device<br>
> 2) Set Rx Voice Level (using display)<br>
> 3) Set Transmit A Level<br>
> .<br>
> .<br>
> .<br>
> <br>
> Please enter your selection now: 2<br>
> RX VOICE DISPLAY:<br>
> v -- 3KHz v -- 5KHz<br>
> <br>
> Current setting on Rx Channel is 0<br>
> Enter new value (0-999, or CR for none): 500<br>
> Changed setting on RX Channel to 500<br>
> RX VOICE DISPLAY:<br>
> v -- 3KHz v -- 5KHz<br>
> <br>
> _______________________________________________<br>
> <br>
> arm-allstar mailing list<br>
> arm-allstar@hamvoip.org<br>
> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar<br>
> <br>
> Visit the BBB and RPi2 web page - http://hamvoip.org<br>
> <o:p></o:p></span></font></p>
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