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What is IEM/AUD?

This topic was started on 2008-04-25 06:31 am.
There are 42 messages contributed to this topic.
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posted by U2Nick (Member) on 2008-04-25 06:31 am quote

I searched the site to make sure that there wasn't already a forum started. So don't worry. I'm having a hard time finding out what exactly an IEM or AUD recording is. Could someone answer my question? And, are they good recordings? Like, if you had the choice between IEM/AUD and Audiance, both of same rating, which would be a better choice? Thanks for your help!

posted by drewhiggins (Member) on 2008-04-25 06:48 am quote

I thought we had a page on it somewhere.

You know what? We do: http://u2start.com/help/bootlegs/ - I just felt like reinventing the wheel.


IEMs are devices used (lots were recorded on the Elevation Tour) by performers to hear a mix of microphones and / or instruments that are on the stage. They are often custom fitted to the individual's ears and provide a high level of noise reduction from stage noise, so you'll get a clicking noise instead - that's the cue for the performer to keep in time which is important - and that can be from any band member, though it seems a higher percentage is from Bono and then it'd be Edge.

ALD is an Assisted Listening Device; that provides a high-quality feed of a live show using a low-level FM (frequency modulation) frequency broadcast inside an arena or stadium, and were meant to be used for hearing impaired people, but bootleggers have started making use of it. As of the Federal Act for Americans with Disability 1990 (I think that's the right name), arenas are required to provide ALD devices.

AUD is simply an audience recording and can range from terrible to quite decent, depending on the taper's equipment, their position and how well the stage equipment is set up - it all depends, however, sometimes the arena shows (North America) have better sound because it's a smaller area, whereas a stadium (Australia) can provide great sound as well, but lots of audience to drown parts out. Chrisedge is a well-known U2 taper for that, and his stuff is well worth tracking down.

SBD, or soundboard, are audio sources that enter the microphones on stage and is stored and recorded digitally to the soundboard in real-time, ready for distribution. The benefit is that it has better sound and less audience, which is what most broadcasts and commercial DVDs use. The trade-off can be that the sound is flat (2006-03-02) but this can usually be improved with a bit of filtering if need be.

posted by djrlewis (Member) on 2008-04-25 08:45 am quote

I've always wondered. How do people get hold of soundboard recordings in the first place?

posted by germcevoy (Crew member) on 2008-04-25 12:29 pm quote

Originally posted by djrlewis:
I've always wondered. How do people get hold of soundboard recordings in the first place?


I have no idea how people get access to soundboards (Cleveland and New York 01 for eg). IEM's transmit radio signals to the mixing desk who then send it out via the PA. I think there are devices out there that can latch on to the IEM frequency and record what it its transmitting. Just like a recording from the radio. I stand to be corrected though. . . .and they sound shit

posted by Ali709 (Member) on 2008-04-25 12:57 pm quote

Originally posted by germcevoy:
[..]

I have no idea how people get access to soundboards (Cleveland and New York 01 for eg). IEM's transmit radio signals to the mixing desk who then send it out via the PA. I think there are devices out there that can latch on to the IEM frequency and record what it its transmitting. Just like a recording from the radio. I stand to be corrected though. . . .and they sound shit


I always thought it's some of the staff leaking it...I know I would grab a copy for myself if I worked at the arena...and then I would share it with you guys! ... but who knows

posted by U2Nick (Member) on 2008-04-25 03:07 pm quote

Thanks, you were all a huge help!

posted by germcevoy (Crew member) on 2008-04-25 03:19 pm quote

Originally posted by Ali709:
[..]

I always thought it's some of the staff leaking it...I know I would grab a copy for myself if I worked at the arena...and then I would share it with you guys! ... but who knows


I have no idea how full soundboards are captured (non broadcasts or pro-shot video rips) but i'm pretty sure my above description is near enough how IEM's are captured.



posted by stefano1973 (Member) on 2008-04-25 03:30 pm quote

Never thought about being U2 staff to allow the sharing of this kind of recordings?
It's overall a great advertisement for U2.....ain't it?

posted by WojBhoy (Member) on 2008-04-25 05:21 pm quote

Yet more technical gab that leaves me speechless and feeling inept lol...

posted by thechicken (Member) on 2008-04-25 07:49 pm quote

Actually, fom reading the "IEM" description, it gives ht reader the impression that every band uses a click track, which is not true.

posted by germcevoy (Crew member) on 2008-04-25 08:00 pm quote

the IEM's also help Bono out when he's on the B-stage. He can keep time with the band as they are playing and not as he is hearing (there would be a great delay from instrument, mixing desk, PA, Bonoo

posted by haytrain (Member) on 2008-04-25 08:04 pm quote

Originally posted by germcevoy:
the IEM's also help Bono out when he's on the B-stage. He can keep time with the band as they are playing and not as he is hearing (there would be a great delay from instrument, mixing desk, PA, Bonoo


It's crazy how fast the delay adds up, isn't it?

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