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Noise Issues on Raspberry Pi A+

Former Member

Hello All - I just purchase the element14 Pi A+ at microcenter and am having a noise issue with the board. Immediately upon power up the 1/8 output is extremely noisy, to the point that it would be useless for my application (soundfont player) Also there's all sort of weird aliasing on the audio, particularly on the low end. Does anyone else have this issue, or is it possible that it's just my board and it's defective? Do you think the HDMI out would fare any better?  Any help is greatly appreciated. Thanks.

 

Best,

 

Bob

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    Hello Bob, unfortunately it is true. I had the same problem and I was obliged to dedicate a Raspberry PI (B+) to the audio output with a Cirrus Logic Audio Card that instead works perfectly. As the problem with this card is the need of a non-upgradable and dedicated version of the raspian Linux (at least until the actual date), if you plan to make and / or install something special I suggest to check if it is possible to be done before equipping - eventually - the PI with this board. It is a really great board but the real-time kernel really is a great limitation in such case.

     

    Enrico

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  • 0

    Hello Bob, unfortunately it is true. I had the same problem and I was obliged to dedicate a Raspberry PI (B+) to the audio output with a Cirrus Logic Audio Card that instead works perfectly. As the problem with this card is the need of a non-upgradable and dedicated version of the raspian Linux (at least until the actual date), if you plan to make and / or install something special I suggest to check if it is possible to be done before equipping - eventually - the PI with this board. It is a really great board but the real-time kernel really is a great limitation in such case.

     

    Enrico

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