Rca Audio noise

I have wired up my raspberry pi b+ to a RCA/Composite connection to plug into the TV all cables use a common earth and this is where i think the noise is coming from is there a simple way of removing this noise

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shabaz over 10 years ago +2

The Composite cable doesn't carry any sound information, I guess you're referring to the 3.5mm stereo jack, is that connected to the TV? You might need to lower your expectations, because inherently it…
gadget.iom over 10 years ago +2

If you want to add something to the RCA cable you could look at tone of these: http://www.amazon.co.uk/RCA-Phono-Ground-Loop-Isolator/dp/B007545XWE Though I have no idea how successful it would be.
shabaz over 10 years ago in reply to gadget.iom +2

They are often quite effective for ground loop problems, especially for car use, but I once took one apart, they use very cheapy typical iron-core transformers, so I did wonder how much distortion they…

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0 gadget.iom over 10 years ago

If you want to add something to the RCA cable you could look at tone of these:
http://www.amazon.co.uk/RCA-Phono-Ground-Loop-Isolator/dp/B007545XWE

Though I have no idea how successful it would be.
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0 shabaz over 10 years ago in reply to gadget.iom

They are often quite effective for ground loop problems, especially for car use, but I once took one apart, they use very cheapy typical iron-core transformers, so I did wonder how much distortion they were introducing ; ) Probably quite a lot hehe. Still, at least they eliminate the electrical whine.
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0 gadget.iom over 10 years ago in reply to shabaz

Never cracked one open.
Prefer to use balanced audio signals wherever possible.
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0 gadget.iom over 10 years ago in reply to shabaz

Never cracked one open.
Prefer to use balanced audio signals wherever possible.
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0 shabaz over 10 years ago in reply to gadget.iom

Me too. I was happy when I noticed my car had balanced audio signals, just wish somebody would tell the car amplifier manufacturers to stop using unbalanced phono inputs : ( It's like they want people to suffer when the phono connections inevitably loosen, etc..
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