Topic: loud noise between scene change help | Allen & Heath Digital Community

loud noise between scene change help

This topic contains 10 replies, has 6 voices, and was last updated by Lou-Hemming 12 years, 1 month ago.

Viewing 11 posts - 1 through 11 (of 11 total)

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2011/06/22 at 3:22 pm #22847

johannorval
Participant

not every time but with any different scene change suddenley the whole p.a would go in overdrive like all the mics as well as all outputs are unmuted and cranced all the way up…………….allmost **** my pants someone please help
we got a big show on friday
[xx(]

2011/06/22 at 4:22 pm #28633

RayS
Participant

quote:

Originally posted by johannorval

not every time but with any different scene change suddenley the whole p.a would go in overdrive like all the mics as well as all outputs are unmuted and cranced all the way up…………….allmost **** my pants someone please help
we got a big show on friday
[xx(]

To rule out other faults, In the problem scenes, (editor/scenes/select the scene/edit) can you check that indeed the gains/mutes assignment etc…. of the different channels have not been changed inadvertently………..

RayS

R-72/iDR32/iPS10

2011/06/22 at 5:04 pm #28634

johannorval
Participant

checked and no everything works fine and then just without changing anything but the scenes it self , every thing goes in overdrive as if everything opens at once and you get a vey loud feedback noise from all channels on main it also does this in no random order

2011/06/22 at 6:36 pm #28635

RayS
Participant

quote:

Originally posted by johannorval

checked and no everything works fine and then just without changing anything but the scenes it self , every thing goes in overdrive as if everything opens at once and you get a vey loud feedback noise from all channels on main it also does this in no random order

so any scene, not necessarily the same ones..like totally random…..?? when recalling scenes you know that changes everything. all the parameters……can you send me the show file with the scenes….what system are you using i.e. surface/mixrack etc…..?

RayS

R-72/iDR32/iPS10

2011/06/22 at 9:29 pm #28639

Stix
Participant

“no random order”. That’s a double negative – I assume you mean that it is random? Anyway just a suggestion but check your phantom power settings between scenes are not changing. Condenser mic channels with phantom turning on in a scene will create a loud thumb and also start working – and if high gain settings are also recalled you will get instant feedback. Could be what is happening?
Of course this won’t be random as it will happen every time certain scenes are recalled.

Cheers

Richard Howey
Audio Dynamite Ltd
IDR48/IDR16/T112/R72/Mixpad,Tweak,
Dual M-Dante/DVS, 17″MBP/Logic 9/Custom Mackie Control

2011/06/23 at 7:09 am #28642

johannorval
Participant

thanks richard i am still busy with my language degree , but you get the point.
thanks ,for ideas but whe did check everything it seems it must be a network delay or buffer problem. what do you think

2011/06/23 at 7:12 am #28643

johannorval
Participant

Thanks Ray will do

2011/06/23 at 2:01 pm #28644

Biggsounds
Participant

My first thought was the same as Richard – phantom power being suddenly engaged would cause all manor of nasty noise & feedback – go through your scenes and make sure you don’t have phantom engaged or disengaged somewhere without muting (check every channel! I had a noise issue with my system which ended up being an open channel with no signal but lots of gain running to my auxillaries), it seems a more likely cause to your problem than a network error.

iDR32 mixrack
MixRack for iPad & Tweak for iPhone apps
Asus N61 Laptop (x2 wireless)
Windows 7 Pro 64bit
with Belkin PlayMax N600 HD router
Sennheiser IEM (for PFL)
Dante card

2012/03/05 at 6:52 pm #29878

Lou-Hemming
Participant

I’ve had this a few times and have advised A&H that when using scene change the inputs are all briefly opened as if they were ‘fresh’ channels! This means that before the mute status of the subsequent scene is recognised bybthevilive those condensers that you have diligently padded & eq’d are opened in an unattenuated state! this results in open mics for a couple of seconds whilst the ilive recognises the mutes an a brief screaming nightmare ! It still does it on 1.83 ((

2012/03/07 at 4:06 pm #29895

dymondaudio
Participant

Should’nt iLive be looking forward to the next scene and loading it in a ‘virtual’ memory ready for when you hit go/next scene?

i.e. your in scence ‘A’ and iLive is looking at scene ‘B’ and loading all the settings ‘virtually’ ready.

A bit like a DJ cueing up his next track in the cans checking the levels beat matching etc. before hitting play and moving the x-fader?

Allthough I guess this may be an issue if you suddenly needed to jump from scene ‘A’ to scene ‘D’ and iLive had ‘pre-loaded’ scene ‘B’ into its memory?

2012/03/07 at 4:48 pm #29896

Lou-Hemming
Participant

Yep Dymond, that’s the expectation we have particularly when you are using advance scene on go facility. Never a problem on the ls9 or m7 )
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