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camera flash causes speakers to stop working - Page 4

post #31 of 40
Quote:
Originally Posted by Volvo View Post
Some cameras I know emit a few short bursts of flash, or a red light before firing the big flash.

Also, if your camera is a DSLR with a speedbulb (read: external flash), that flash has its own IR receiver to process how much power it needs, or how long the bulb needs to be lit for enough light.
couldn't have said it any better.
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post #32 of 40
Quote:
Originally Posted by computeruler View Post
A canon t1i with the built in flash
Does it only happen with the flash or does it happen when the orange light before the flash?
post #33 of 40
Thread Starter 
Well it seems to happen right as the flash goes off. I see no orange light.
    
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post #34 of 40
Cameras have a IR emitter for sending out a signal to trigger a slave flash. Change your flash settings to turn it off.
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post #35 of 40
I don't think the T1i has a flash commander... But that said, if it's firing any pre-flash the frequency might be just what's needed to confuse the IR receiver on your amplifier.
post #36 of 40
Solution: Turn up speakers to MAX. Get strobe light. Piss off neighbors.
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post #37 of 40
He might have an external flash with a emitter?
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post #38 of 40
Quote:
Originally Posted by Shane1244 View Post
He might have an external flash with a emitter?
OP already stated he was using built in flash on the camera. The light from a flash tends to reach to IR range just like lighting does, it could be that its hitting an IR frequency close to that of the receiver. But this still isnt a sound theory because unless a direct command is sent it shouldn't have any effect on said receiver.

Prime example I have a harmony remote and even when I'm controlling other devices my remote receiver for my media center still indicates receipt of IR data but does nothing with it, hell it used to do the same with my old laptop that had an IR network tranceiver in it.

To me it would seem to be a shielding issue, most likely the D/A converter in the receiver is a cheap model and not shielded and the intense instanaeous elctrical discharge of the flash is affecting it, sort of like how you can hear lighting strike when listening to AM radio if even you don't see it during an electrical storm.

The easiest way to prove this though I'm sure you dont have one would be to setup an Occiloscope in the room and see how much discharge it picks up from the air. My friend and I use to do this with his Tesla ball, you could actually pick up the discharge from it 10-15 feet away with the scope at 10,000+ volts it was pretty damn cool.
post #39 of 40
Thread Starter 
The receiver is a rather cheap one.
    
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post #40 of 40
I bet it's frequency? I never SEEN this before but it's incredible!
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