Fwd: [G4] Screechy speakers on a Digital Audio

[Jean-Luc Brousseau]

Le 05-02-16, à 20:41, g4-request at listserver.themacintoshguy.com a écrit 
:
>
>> My digital speakers recently began emitting a high-pitched,
>> interference-like sound when the volume is cranked up. This is a
>> processor-upgraded 533 Digital Audio G4. It started the behavior in 
>> the past
>> week. Nothing in the hardware or software has been changed in at 
>> least two
>> months. I have restarted the machine, unplugged and replugged the 
>> speakers
>> and turned off various nearby electronic devices.

Do you have a microphone connected and activated im Sound

Your noise look like a feedback of sound from the speaker in the 
microphone.

Good luck

Jean-Luc Brousseau
B.A., T.P., I.E.E.E., Tr. a.
Charlesbourg Québec  Canada
brousseaujeanluc at ieee.org
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