<![CDATA[Video interference with sound?]]>Hi guys

This is a weird one and has nothing to do with Isadora, but I'm hoping someone may have come across this in the past.
So when I project my image/video it's fine
When I introduce sound it's fine, but when I turn up the volume on my desk the projection shimmers/shakes (its the only way I can explain it)
I though at first it might be the Mac that I'm running izzy (and sound) thru, but I get the same result when playing audio from different sources (my two other computers)
It also seems to happen more with low bass frequencies 
The only thing connecting them all is the sound desk. The sound desk is new and I've used the same set up a few months back with no problems
I also checked if video and sound cables were touching or near to each other.
Our show opened tonight and runs till Sat, any ideas or check lists would be very welcome.
Thanks
Joe
]]>https://community.troikatronix.com/topic/1870/video-interference-with-soundRSS for NodeWed, 12 Aug 2026 14:54:56 GMTTue, 31 Mar 2015 20:23:54 GMT60<![CDATA[Reply to Video interference with sound? on Wed, 08 Apr 2015 08:30:32 GMT]]>D.I. Boxes are best friend of every technitian!  :-)

]]>https://community.troikatronix.com/post/15431https://community.troikatronix.com/post/15431Wed, 08 Apr 2015 08:30:32 GMT<![CDATA[Reply to Video interference with sound? on Sun, 05 Apr 2015 01:23:42 GMT]]>Thanks DusX ;)

]]>https://community.troikatronix.com/post/15349https://community.troikatronix.com/post/15349Sun, 05 Apr 2015 01:23:42 GMT<![CDATA[Reply to Video interference with sound? on Sat, 04 Apr 2015 23:26:23 GMT]]>@goodboy

Glad you got it figured. I had to ask about the bass ;)
]]>https://community.troikatronix.com/post/15348https://community.troikatronix.com/post/15348Sat, 04 Apr 2015 23:26:23 GMT<![CDATA[Reply to Video interference with sound? on Sat, 04 Apr 2015 05:21:18 GMT]]>Thanks Maximortal

That worked! (di's between sound mixer and speakers)
Thank you all
Joe
]]>https://community.troikatronix.com/post/15327https://community.troikatronix.com/post/15327Sat, 04 Apr 2015 05:21:18 GMT<![CDATA[Reply to Video interference with sound? on Thu, 02 Apr 2015 12:20:25 GMT]]>Thanks for all the help,

I will try the di box fix tonight.
]]>https://community.troikatronix.com/post/15284https://community.troikatronix.com/post/15284Thu, 02 Apr 2015 12:20:25 GMT<![CDATA[Reply to Video interference with sound? on Thu, 02 Apr 2015 11:29:30 GMT]]>@goodboy,

Yeah, outside of something really bizarre, ground loop would be the first thing to check.
Best Wishes,
Mark
]]>https://community.troikatronix.com/post/15275https://community.troikatronix.com/post/15275Thu, 02 Apr 2015 11:29:30 GMT<![CDATA[Reply to Video interference with sound? on Wed, 01 Apr 2015 09:55:19 GMT]]>Hi dbini

No, we don't have an ILoop,.... 
and no radio mics in use.
Thanks
Joe
]]>https://community.troikatronix.com/post/15259https://community.troikatronix.com/post/15259Wed, 01 Apr 2015 09:55:19 GMT<![CDATA[Reply to Video interference with sound? on Wed, 01 Apr 2015 05:56:41 GMT]]>are you in a theatre with an induction loop for the hard of hearing? i once discovered a Sennheiser system was interfering with the projector, but only with certain sounds.

]]>https://community.troikatronix.com/post/15256https://community.troikatronix.com/post/15256Wed, 01 Apr 2015 05:56:41 GMT<![CDATA[Reply to Video interference with sound? on Wed, 01 Apr 2015 05:26:48 GMT]]>Thanks Maximortal

That sounds like good advice and worth trying.
Cheers
Joe
]]>https://community.troikatronix.com/post/15254https://community.troikatronix.com/post/15254Wed, 01 Apr 2015 05:26:48 GMT<![CDATA[Reply to Video interference with sound? on Wed, 01 Apr 2015 05:12:47 GMT]]>It seems some ground problem. Try to pur a couple of d.i.boxes in audio chain, between PC and mixer or between mixer and loudspeakers .

]]>https://community.troikatronix.com/post/15253https://community.troikatronix.com/post/15253Wed, 01 Apr 2015 05:12:47 GMT<![CDATA[Reply to Video interference with sound? on Wed, 01 Apr 2015 04:04:13 GMT]]>Hi DusX

No is the short answer I guess, the image is stationary (the edging of the image stays still). 
You can tell it's internal and within the cables which is the first thing I will change when I go in tonight, starting with my video cable.
Thanks for your reply :)
Joe
]]>https://community.troikatronix.com/post/15252https://community.troikatronix.com/post/15252Wed, 01 Apr 2015 04:04:13 GMT<![CDATA[Reply to Video interference with sound? on Wed, 01 Apr 2015 00:08:03 GMT]]>Any chance it's the bass vibrating the projector.

]]>https://community.troikatronix.com/post/15248https://community.troikatronix.com/post/15248Wed, 01 Apr 2015 00:08:03 GMT