Hello. I switched on my new Model B+ for the first time tonight and with an external amplified speaker plugged into the analogue audio jack I get a loud buzzing. I presume this is because of the composite audio now being fed out of this socket as well.
Is there a setting in config.txt I can use to suppress this? This in my opinion is a retrograde step. I don't need video because like a lot of folks I can't see. And the buzzing of the composite video is buggering up my sound.
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Cromarty
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Analogue audio on B+
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Michael Ray
Analyst/Programmer
Surrey, UK
4xB, 1xB+,
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Michael Ray
Analyst/Programmer
Surrey, UK
4xB, 1xB+,
Creator and admin of:
raspberry-vi@freelists.org
Ham radio call: G4XBF
'Suddenly I am become death, destroyer of SD cards'
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klricks
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Re: Analogue audio on B+
Try a cable with a 4 ring 3.5mm plug (Video + audio).
Using a 3 ring (audio only) cable is supposed to harmlessly short the video to ground but I would try the 4 ring anyway.
Using a 3 ring (audio only) cable is supposed to harmlessly short the video to ground but I would try the 4 ring anyway.
Unless specified otherwise my response is based on the latest and fully updated RPiOS Buster w/ Desktop OS.
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James Adams
- Raspberry Pi Engineer & Forum Moderator
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Re: Analogue audio on B+
Can you tell me *exactly* what things are plugged in to the Pi?. The composite shouldn't cause an issue. It could be a bad connector or some kind of ground loop for instance. Can you give some more detail?
James Adams
Raspberry Pi - COO & Hardware Lead
Raspberry Pi - COO & Hardware Lead