[opendtv] Re: France bids farewell to SECAM

  • From: Olivier Houot <olho_avatar_i@xxxxxxxxx>
  • To: opendtv@xxxxxxxxxxxxx
  • Date: Tue, 06 Dec 2011 01:10:14 +0100

There is certainly a weakness in that regard, but not to the point of
making things completely impractical. Thomson made SECAM studio
equipment with an AM bus that would be used when signal addition was
needed. With that kind of equipment it would be possible to encode at
the camera and remain in SECAM after that.

One can argue that during mixing you no longer had a standard SECAM IIIb
signal. However, that was still secam in principle, albeit in AM.

But obviously that is more complexity, more processing steps for analog
signal and hence more degradation. And since the market for SECAM was
smaller, more expensive equipment.

So not ideal in the studio indeed, but at a time when color television
sets were such unreliable beasts, there were reasons to choose a
standard that required less complexity and precision in the receivers,
even if it meant more complexity in production.

 
 
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