[opendtv] Re: France bids farewell to SECAM

  • From: Mark Schubin <tvmark@xxxxxxxxxxxxx>
  • To: opendtv@xxxxxxxxxxxxx
  • Date: Wed, 14 Dec 2011 09:03:28 -0500

Well, you need to change one (the burst or the subcarrier in the picture) relative to the other. It's a routine operation for processing amplifiers (proc amps).


TTFN,
Mark


On 12/14/2011 8:38 AM, Mike Tsinberg wrote:
Actually to affect NTSC modulated signal you need to adjust color burst only
because it is used as the reference for demodulation process. If you change
the subcarrier used for the burst and the actual signal there will be no
change. By reducing amplitude of the color burst you will increase color
saturation and by changing its phase you will adjust the hue. However,
changing burst will make a not standard NTSC - the color bars will not be in
standard location on the vectorscope.

Best Regards,

Mike Tsinberg
http://www.keydigital.com       

-----Original Message-----
From: opendtv-bounce@xxxxxxxxxxxxx [mailto:opendtv-bounce@xxxxxxxxxxxxx] On
Behalf Of Mark Schubin
Sent: Tuesday, December 13, 2011 6:02 PM
To: opendtv@xxxxxxxxxxxxx
Subject: [opendtv] Re: France bids farewell to SECAM

On 12/13/2011 5:57 PM, Olivier Houot wrote:
And what about color adjustments, by the way ? Can you do that in PAL
/ NTSC without demodulation?
Sure!

Adjust subcarrier amplitude for hue and phase for saturation.

TTFN,
Mark



----------------------------------------------------------------------
You can UNSUBSCRIBE from the OpenDTV list in two ways:

- Using the UNSUBSCRIBE command in your user configuration settings at
FreeLists.org

- By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word
unsubscribe in the subject line.




----------------------------------------------------------------------
You can UNSUBSCRIBE from the OpenDTV list in two ways:

- Using the UNSUBSCRIBE command in your user configuration settings at 
FreeLists.org

- By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word 
unsubscribe in the subject line.





----------------------------------------------------------------------
You can UNSUBSCRIBE from the OpenDTV list in two ways:

- Using the UNSUBSCRIBE command in your user configuration settings at FreeLists.org
- By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word 
unsubscribe in the subject line.

Other related posts: