Film-Tech Forum ARCHIVE: Dolby Cat 69P v. 151B

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Topic: Dolby Cat 69P v. 151B - Operational Difference?

David E. Nedrow
Master Film Handler

Posts: 368
From: Columbus, OH, USA
Registered: Oct 2008

posted 11-23-2010 04:17 PM

OK, I've read the tech info re: Cat 151B, but am still not quite sure if it can be used interchangeably with 69P for setting front and surround levels.

Any guidance would be appreciated, before I spend my $75. [Wink]

-David

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Sam D. Chavez
Film God

Posts: 2153
From: Martinez, CA USA
Registered: Aug 2003

posted 11-23-2010 07:47 PM

These are two different test films. 69 is 50% modulation stereo in phase pink noise.

151 is in phase, out of phase bursts of pink noise to test the Surround decoder card and subjective evaluation of delay setting.

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David E. Nedrow
Master Film Handler

Posts: 368
From: Columbus, OH, USA
Registered: Oct 2008

posted 11-23-2010 09:26 PM

OK, cool.

Thanks for the info.

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