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 Post subject: Re: Noise on headphone out of RPi in car
PostPosted: Wed Jun 08, 2016 1:08 pm 
Joined: Tue Oct 06, 2015 3:01 pm
Posts: 122
Had somebody tried adding a resistor between raspberry pi audio output and amplifier?


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 Post subject: Re: Noise on headphone out of RPi in car
PostPosted: Wed Jul 06, 2016 9:17 pm 
Joined: Sun Jun 21, 2015 11:18 pm
Posts: 82
I've got setup without noises. I'm using cheap USB soundcard with amplifier from aliexpress. Amplifier has noise reduction circuit built-in. Noises are only when RPi is booting - when USB supply is switching few times.


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 Post subject: Re: Noise on headphone out of RPi in car
PostPosted: Mon Jul 25, 2016 7:30 pm 
Joined: Tue Oct 06, 2015 3:01 pm
Posts: 122
Had anyone tried 4pin trs connector. Maybe it is possible that the noise is video signal?


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