[BC] Is overprocessing illegal?

[Goran Tomas]

--- At 24.12.2006 23:24, Jerry Mathis wrote: ---
>On 12/24/06, Kevin Tekel <amstereoexp at yahoo.com> wrote:
>>I found this in the FCC rules....
>>
>>Sec. 73.1570  Modulation levels: AM, FM, TV and Class A TV aural.
>>
>>(c) If a limiting or compression amplifier is employed to maintain
>>modulation levels, precaution must be taken so as not to substantially
>>alter the dynamic characteristics of programs.
>
>This was one of those Rules written with good intentions, with which the
>road to Hell is abundantly paved. The problem: Define "substantially alter".
>You'll find as many definitions as there are people doing the defining. I
>personally would tend to trust definitions offered by people the likes of
>Bob Orban and Frank Foti. I would most distrust most PD's and ALL
>programming consultants.

In video and television, a "standard observer" was used to define the 
human sensitivity to the three primary colors (red, green and blue). 
This was a series of experiments independently done by two scientists 
on a large group of people, that resulted in the definition of CIE 
XYZ chromatic space and CIE RGB color matching functions. These are 
the basis of all TV and video systems today.

In the experiment, participants varied the brightness of three 
primary beams (RGB) until they (subjectively) matched the test color.

Similar research could be done to define what is "substantially 
altering the dynamic characteristics of a program" and what is not...


Regards,
Goran Tomas