What causes this interference in auxiliar output?

LaureeGrd

New member
Mar 13, 2016
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I'm trying to stream audio from my mobile to my pc. I have a Motorola Moto G 2013 (xt1032).
I can connect an auxiliar cable from the mobile to the pc as a microphone and record it very well. But whenever I connect the Moto G to the pc with an USB cable (I tried 6 or 7 different ones), the sound starts making static and noises. The most obvious is a constant high-pitch sound.
This problem doesn't happens if I disconnect the USB cable or if I connect it to a normal power supply instead of the pc. So I guess is not a problem in android or my mobile at all. I'm just hoping someone here knows what can be causing this. Thanks.
 

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