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Old 03-20-2001, 03:40 PM
lamp lamp is offline
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Default High Frequeccy Warble Sound?

Sort of like a shortwave radio band,high pitched warble sound. My set up is G4,DIGI001,Yamaha O1V to a yamaha hifi amp and old pair of Polk model 10 "studio monitors"Thier quote not mine,which I love.I use the lightpipe from O1v to PT and back ,and it is dead quiet.The noise happens when I plug the oo1 monitor outs into the mixer so I can hear a couple of tracks that aren't asigned to the light pipe outs in PT.The noise isn't very loud,but is audable.The video monitor sets behind and above the mixer,which sets about in the middle of a six foot or so triangle of the Polks and the sweet spot.The mac is 4 feet left of the sweet spot and the OO1 is 2 feet above that.I have got spdif cables for the OO1,which might solve the problem but haven't tried them yet.Digital sync is locked okay. Anyone have any Idea what this nois is? Thanks Brad.
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Old 03-21-2001, 11:24 AM
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Default Re: High Frequeccy Warble Sound?

up.anyone?
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Old 03-22-2001, 11:02 AM
Conscious Structure Conscious Structure is offline
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Default Re: High Frequeccy Warble Sound?

Is this a constant sound? Or is it only during playback?

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Old 03-22-2001, 12:34 PM
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Default Re: High Frequeccy Warble Sound?

It's a low level sound that is constant.It changes pitch when I click the mouse down.It only comes from the digi monitor outs,the lightpipe is clean.My monitors are not shielded.They are at least three feet from the video monitor, but I don't think they are the cause because the lightpipe is clean.I wonder if haveing digital sync running inside the lightpipe could cause this?I will try unpluging things next.Thanks Brad.
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Old 03-23-2001, 12:01 PM
Conscious Structure Conscious Structure is offline
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Default Re: High Frequeccy Warble Sound?

That's very strange. Warbling during playback often is caused by an effect called Jitter, but this sounds like something completely different. Your monitor shouldn't be causing a lot of colouration to your reference monitors if you degauss it before every session. I would call Digi tech support, you could have some bad hardware.

Also, are you using balanced cables? And do you have a radio, tv or cell phone tower nearby?
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Old 04-03-2001, 09:03 PM
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Default Re: High Frequeccy Warble Sound?

Just an update. Problem solved by using balanced cables between digi monitor out and O1V chanel in.
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