[BC] AM Stereo On A Mono Radio-FM Loudness

Cowboy curt at spam-o-matic.net
Fri Oct 5 15:55:39 CDT 2007


On Friday 05 October 2007 12:27 pm, RADIO DOCTOR wrote:
>  On Fri, 5 Oct 2007, Cowboy wrote:

>  > It's a bad thing ( IMHO ) to try and codify good judgment.
>  
>  Seems that 'peaks of frequent recurrence' which sounds reasonable is 
>  exactly a codification of judgment. :)

 Yes, but indefinite enough to allow for good judgment.

>  As referenced above, the FCC said a peak was 1 millisecond; less than 
>  that, it doesn't count.  The monitors that have peak-weighting ability 
>  use 900 microseconds for a 10% safty margin.
>  
>  So we really have an absolute -- peaks that we know don't have 
>  to be counted.  And the judgment call beyond that as to 'peaks of 
>  frequent recurrence'.
>  
>  I fail to see why you would want a tighter absolute than was ever in the 
>  FCC rules.

 I don't !
 Personally, my preference goes to abolishing ALL of the rules, except one.
 That if operation complies with what a reasonable man acting reasonably
 would allow, it's legal.
 If it doesn't, it's not.

>  The calibration of a scope, while used in the past by FCC roving trucks, 
>  is certainly not a precision way of determining compliance with their 
>  own definition of a peak, especially when a station is running more than 
>  mono programming.  A ModMinder with it's traceable calibration is a 
>  better way of dealing with the rule's definition.  Then apply the 
>  judgmental part after that.

 The way I read it, the absolute is applied before judgment.
 If it were as you suggest, I'd have no problem with it.

>  No one seems to know what 'peaks of frequent recurrence' means,

 Yeah, we do. ALL of us do in reality.
 It will vary some with individuals, but not much.

>  The reason I talk about peak weighting so much is that I saw how 
>  important an issue it is while installing the MSN Direct subcarriers for 
>  Microsoft at dozens of stations in 2003-4. 

 And, acknowledging your experience superior to mine own, I will defer.
 ( though I'll always argue for a reasonable man acting reasonably )

-- 
Cowboy




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