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

[Cowboy]

On Thursday 04 October 2007 06:34 pm, RADIO DOCTOR wrote:
>  On Thu, 4 Oct 2007, Cowboy wrote:
>  
>  > Because Mr. Small didn't know how to measure modulation accurately, 
>  > now a dedicated black box is required.
>  >
>  > I still fail to understand how this is "better" ?
>  
>  Mr. Small knew how to measure FM very accurately and precisely. 

 OK. I'll take your word on that.

>  And hee  
>  built a box that could measure according what to the rules were and he 
>  has a letter (I have a copy) from the FCC approving what he built the 
>  ModMinder to do.  The FCC has never required that no instaneous peaks 
>  exceed 100%.  They defined a peak as 10 cycles of a 10 kHz sinewave 
>  right in the rules.  One millsecond.  It is 'better' to ignore peaks 
>  that they don't recoginize as peaks if one wants to be as loud as 
>  possible, yet legal.  And such weighting is essential when transmitting 
>  high-speed digital SCAs.

 Here's my problem with this approach.
 The rules always had the qualifier "peaks of frequent recurrence" which
 always seemed reasonable, and more than adequate to me.
 Now, we need to know how many picoseconds a peak is, for it to be a peak,
 or not a peak, and if a peak overlaps the window by a picosecond, does it
 still count/not count ?
 And, it sorta depends on what the meaning of "is" is.

 It's a bad thing ( IMHO ) to try and codify good judgment.

-- 
Cowboy