[SBE] audio problem

[Albert Muick]

Hi Guys,
   
  Sounds like a kinda basic problem, so I am replying to the group and the gentleman as well.
   
  If it's OK in his studios, and the stations' studios, but sounds bad on the air, it seems to me that it's nothing specific to the make/model of his audio chain equipment.  It sounds like a phasing issue (make sure his left/right outputs follow the inputs) or the fact that his processed audio is being re-processed by the stations' audio and modulation chain.
   
  If the left/right outputs from his device are reversed, it could conceivably cause this condition, however, he states that when the device is out of the chain, everything is normal.  What he doesn't state is whether the device is internally bypassed or it is patched around.  This could give us further clues in a phasing issue.
   
  As we all know, re-processing processed audio makes one's signal sound like the s*** sandwich of the airwaves.  I think it could be the stations' compressor limiter (Orban/Omnia) that is re-processing this and causing the troubles.
   
  Any other ideas?
   
  Best regards,
   
  Al Muick, CBRE
  

John Poray <jporay at sbe.org> wrote:
  Can anyone on the SBE Roundtable offer an opinion to the audio problem
described in the message below? The person asking the question is not a
member of SBE and therefore not subscribed to the Roundtable so please reply
off-line to him. admaker at ntelos.net



Thanks,

John Poray 

*****************************************

John L. Poray, CAE

Executive Director

Society of Broadcast Engineers, Inc.

9102 N. Meridian Street, Suite 150

Indianapolis, IN 46260 USA

Phone: (317) 846-9000 Fax:(317) 846-9120

jporay at sbe.org



-----Original Message-----
From: Michael Holmes [mailto:admaker at ntelos.net] 
Sent: Tuesday, August 21, 2007 6:55 PM
To: mclappe at sbe.org
Subject: Request re signal processor difficulty

Sirs:

I am a radio commercial producer of 30 years experience. 

I have a signal processor called an SPL (Sound Performance
Laboratory, Germany) Vitalizer. It enhances audio signals with a
combination of dynamic EQ, amplitude-controlled phase correction and
harmonic filtering. The result is greatly enhanced transparency.

This device is used in recording studios, post-production
facilities, and live sound reinforcement. It is advertised for these
purposes plus as an enhancing device in broadcast facility audio chains. 

For some reason, it distorts my commercials on the air, and has
since I began using it. I hear no distortion whatsoever in my studio. I
use its effect sparingly. I'm not overdriving anything, and people at the
stations say that my MP3's sound wonderful in their monitors (internal, not
off-air monitors, which exhibit the distortion to them as well). The
company that manufactures this device is well-respected worldwide and has a
good-sized range of audio products: 

SPL Home: http://spl-usa.com/index.html

Vitalizer page: http://spl-usa.com/V_MK2/in_short.html

If it is possible, I would like to put this problem before your
membership in the hope that someone has had experience with this device and
can offer insight or solution to this difficulty. 

I think it important to note that only someone familiar with
this device will be able to address the issue. Again, my levels are good,
and are identical with or without the device in the chain. With the device
I get on-air distortion. Without I don't. To the best of my knowledge
there are no other variables or differences. The stations report that
in-house everything sounds fine. 

Thanks very much!

Michael Holmes

admaker at ntelos.net

















_______________________________________________
SBE mailing list
To unsubscribe, go to http://seven.pairlist.net/mailman/options/sbe
_______________________________________________
SBE at sbe.org
http://seven.pairlist.net/mailman/listinfo/sbe