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Rca Audio noise

chrisdracko

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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    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 will have some noise (it wasn't designed to be high quality, and it is in close proximity to parts on the RPI board that will cause noise on the output - nothing can be done about it), and it will be audible. Once it is in there, it can't be removed easily since it is at audible frequencies (along with your desired sounds).

    Other things may be adding to it (as Paul mentions) but inherently some will always be there.

    The only solution for hi-fi is a sound card, or a digital audio output (from sound card or HDMI).

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  • 0

    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 will have some noise (it wasn't designed to be high quality, and it is in close proximity to parts on the RPI board that will cause noise on the output - nothing can be done about it), and it will be audible. Once it is in there, it can't be removed easily since it is at audible frequencies (along with your desired sounds).

    Other things may be adding to it (as Paul mentions) but inherently some will always be there.

    The only solution for hi-fi is a sound card, or a digital audio output (from sound card or HDMI).

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