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<div class="moz-cite-prefix">On 2020-05-27 12:39 p.m., Russell
Reiter via talk wrote:<br>
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<div>I also had a weird experience when I used a line adapter
to plug a guitar into the line in and play out the speakers.
After I defined the loopback device for pulse audio I'm not
sure what it was but, when I adjusted the potentiometers on
the guitar for base, treble and volume, I seemed to be able
to tune in an audio broadcast channel and got that signal
out the speakers. I know it was a broadcast, I heard it
clearly, it was a one sided conversation, but in a language
I don't know.</div>
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<p>The guitar has big coils: the circuit has high impedances, and in
the case of a connection to a regular audio line input, it's not
optimally terminated. And bingo, an impromptu radio receiver. We
used to hear a HAM radio operator key up transmission through our
subwoofer. You could see his antenna rising up over the houses a
block over.<br>
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<div>So my thought was to get an audio breakout to usb via the
Thunderspy port, but that would defeat the purpose of using
the Realtek codec features of the board. What I really need
is a good quality junction between the guitar phono I/O and
the computers stereo line-in.</div>
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<p>Guitar in to a mic preamp is not as exciting but is fairly
clean. From there you can go to line level with impunity.<br>
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<p>Linux, Linux, Linux. There. :-)</p>
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<p>Cheers,<br>
Mike<br>
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