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compellor and Omnia 6

My newest client has four FM's using the three Omnia 6 exi's and one Omnia 5 exi. They have been running me ragged changing the placement of the Omnia's. The only one they like is the Omnia 5 which is located at the studio before a composite STL. The other Omnia 6's are matched with Moseley Starlinks. At first they wanted to keep the units studio side. Now they don't like the way it sounds and I have moved the Omnia's out to the transmitter sites. All sites have IP so remote control is easy. At one station the board ops are clipping the Starlink STL. I have backed the input levels down to the Starlink but they don't like that sound either. At another site about five years ago I used a compellor to protect a Starlink. I can't remember how I set up the compellor and Omnia. I believe I slowed down the AGC in the Omnia or maybe left it alone. I can't remember the compellor settings either. Anyone have any settings for the compellor and Omnia 6 combo? Any help would be greatly appreciated. Thanks,
 
I would first:

1. Put the Compellor in front of the Starlink transmitter at the studio

2. Completely disable any AGC within your Omnia (or whatever processor you use)

R
 
I would FIRST contact Mark Manolio or Frank Foti at Omnia and ask for their input:

...tell them precisely what gear you are using, even down to if you're running compressed or linear audio...I'd also share with them what the "product" folks want to hear...and what they're not hearing. Start there.

I'm not so sure that "defeating" the AGC of an Omnia is a good idea. Again, call Mark and Frank.

The only time I'd consider "defeating" the AGC in an Omnia is if I had the luxury of an Arianne at the studio before the STL. Even then, it's a matter of slowing the attack and release settings. YMMV.
 
From my experience I wouldn't disable the WB AGC in the Omnia, disabled it has some strange effects on the multiband and Limiter bands gain. Run your WB AGC drive hard (3 -5 db) attack and release slow (almost off). I have used a Compellor and currently using an Ariane with these settings and have had great results.
 
It really must be a YMMV situation. I just don't see the point of running two sets of AGC, with one at the studio STL and the other in the processor at the transmitter site. Isn't that an open invitation for one AGC fighting the other? Or are we talking analog STL's here? Sorry, I'm not real familiar with the Starlinks. ;)

R
 
The AGC's don't necessarily have to fight one another, if everything is tuned correctly. It's easy to make that happen, though.
 
Robert Bass said:
It really must be a YMMV situation. I just don't see the point of running two sets of AGC, with one at the studio STL and the other in the processor at the transmitter site. Isn't that an open invitation for one AGC fighting the other?

It is my experience as well that Omnia.6 doesn't like it's WB AGC defeated. The gain structure is such that when you defeat it, you have to make up for the significant loss of gain and for some reason that doesn't sound particularly good. I've also noticed that Omnia has this peculiarity that the overall sound is largely dependent on the input drive/level to the processor (much more than with other processors).


Regards,
Goran Tomas
 
Goran Tomas said:
It is my experience as well that Omnia.6 doesn't like it's WB AGC defeated. The gain structure is such that when you defeat it, you have to make up for the significant loss of gain and for some reason that doesn't sound particularly good. I've also noticed that Omnia has this peculiarity that the overall sound is largely dependent on the input drive/level to the processor (much more than with other processors).

Not true!

We have many installations where there has been a need to use an independent AGC ahead of an STL, and then defeat the WB-AGC in the Omnia. The key is to make sure the input levels are correct. Then drive the MB-AGC, in the Omnia, to produce the same G/R indication on the bargraphs, as if the WB-AGC were still in the loop. This works, and the effective processed sound is basically the same.

BTW: We have tested the effects of defeating the front end AGC on Omnia, and 'other' processors, and they all seem to react about the same.

-Frank Foti
 
I agree with Frank on this one.

R
 
Well I don't know, but that has been my experience... I tried it with both Ariane and Orban 424A and in both cases, after a while, I got back to enabling the WB AGC as that worked better for me.

It would be interesting to hear if other people who have Arianes (or Compellors) in front of Omnia-6 have WB AGC enabled or disabled...


Regards,
Goran Tomas
 
I have not had any problems defeating the wideband AGC in front of the ONE and using an Ariane. We also didn't have a problem when we used an Omnia 5EX or the 9400.
 
wgliradio said:
I have not had any problems defeating the wideband AGC in front of the ONE and using an Ariane. We also didn't have a problem when we used an Omnia 5EX or the 9400.

Did you try using the WB AGC with Ariane in front, to see what works better?


Regards,
Goran Tomas
 
Back in the days of an analog air chain, I used to do this trick...I had problems with running the wideband ACG once....and it turned out that the Compellor has an audio capacitor int he gating sidechain drying out, so as the high frequency content of the program audio lessened, the unit would freeze more and more, causing inconsistent audio levels that went away when enabling the AGC.

I tracked down the *real* problem, and was back in business withthe bypassed WB AGC.

With the new chain (which is all AES) there was no longer any need for the Compellors, and the Omnias are running barefoot and in tact.
 
wgliradio said:
I have not had any problems defeating the wideband AGC in front of the ONE and using an Ariane. We also didn't have a problem when we used an Omnia 5EX or the 9400.

Goran's WRONG, yet AGAIN!
 
Obviously, you can't disagree with the architect of the unit.

When I had an Ariane, doing Oldies, it was used sparingly at the studio with the Omnia6 attack and release setting set WAY slow.

I think it's the best chain I've ever heard on 60's/70's.
 
CalifZeke said:
wgliradio said:
I have not had any problems defeating the wideband AGC in front of the ONE and using an Ariane. We also didn't have a problem when we used an Omnia 5EX or the 9400.

Goran's WRONG, yet AGAIN!

There aren't many golden ears in the business. Goran is one of them. His preference may be slightly different, but that's OK.
 
wgliradio said:
There aren't many golden ears in the business. Goran is one of them. His preference may be slightly different, but that's OK.

What qualifies him as a golden ear?
 
I must of missed something. Thomas renders an opinion. Zeke says he's wrong. Opiniions are neither right nor wrong. One may agree or disagree with them, to a greater or lesser extent. If you don't share his opinion, you'll set your gear up differently. But ain't either one 'right' or 'wrong'.
 
CalifZeke said:
wgliradio said:
There aren't many golden ears in the business. Goran is one of them. His preference may be slightly different, but that's OK.

What qualifies him as a golden ear?

I've auditioned many of his presets, listened to alot of his work and have had many lengthy discussions with him. He would be someone I would trust the sound of my station to if I couldn't do it myself for some reason.
 
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