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Sony XDCAM EX Pro Handhelds
Sony PMW-300, PXW-X200, PXW-X180 (back to EX3 & EX1) recording to SxS flash memory.


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Old August 8th, 2008, 05:08 PM   #1
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hiss, hiss, hiss

Hi guys,

I just noticed recently that if I turn up the monitor volume to the max level on EX1
a very significant hiss can be heard from both audio channels.
(The input selectors are in external mic or the mic+48V position, regardless of having a mic actually connected.) Some hiss is also there when using the internal mic


Can someone confirm if this was a normal phenomena or my cam should be serviced?

( when no source connected and the audio inputs are in Line position there's no hiss at all)

Thanks in advance,

Atti
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Old August 8th, 2008, 11:53 PM   #2
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Hm,
Is there anybody out there having the extra 5 minutes and quickly would be able to test the hiss phenomena on her/his unit? pls.
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Old August 9th, 2008, 05:04 AM   #3
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The S/N ratio and hiss is very dependent on the gain settings in the menues. This has been covered in an extensive thread that you can try searching for. In short - you have to make sure that the gain setting is opimized for you mic sensitivity to get maximum S/N. If you do hiss should not be a problem.
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Old August 9th, 2008, 05:13 AM   #4
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I think it is the monitoring amp. I have tried various headphones Sony and Sennheiser, both have low level even when monitor is on max. Have presumed that recording level is to be set at a position than gives same as auto- although I would not really use auto unless it is just for actuality fx.

Will do some tests this weekend with various mics.
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Old August 10th, 2008, 03:07 AM   #5
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It is the monitor amplifier.

Paul
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