There's no outcry about poor reproduction as a result... so is it that much of a concern. Provided the levels are indeed matched is it noticable.... we're not talking into the red just level.

I follow the manual and use Mono as with all processors and the labeling on the tone film itself. I make sure I'm the only one who does Dolby tone so there is consistency and no chance of any other trims being changed by mistake.

I've never had to check Dolby tone because of a sound problem, its checked as a matter of routine. Sometimes the levels have dropped and I've not been aware of it until I did a check.

Steve

I recall you mentioning Cat 222SR/A with some distain a few times before -- are they really that bad? The museum is about to install in their CP55. Should I be expecting something less in audio quality from them?

And while we are on CP55's, can anyone tell me if the Subbass channel output is active in all formats or just the stereo formats? We just purchased a BGW Powered Subbass bin but unfortunately it does not fit behind the screen so it must be setup for each show. I don't want to have to schedule an extra crew person in to do this every time we run a mono print (quite often) if there is no output in 01 format.

Unless, of course, there is a difference between the US and UK boards. I have some UK models so I may check it next time I'm near one of them.

If you use Dolby A to set the level (following the installation manual) you will get a different result than if you used SR -- I forget which, but one of them will be louder -- so there is apparently a difference between the formats.

Steve G: What exactly do you mean when you say that the 222 will "mistrack" ?

 |  IP: Logged

Sorry to hear you're under the weather. Hope you feel better soon.

 |  IP: Logged

Josh

Cat 222 A Two channels of 'A'
Cat 222 B Two channels of 'SR'
Cat 222 SR/A Two channels of each type.

Have I understood this much correctly?

The Cat. 222 B is described as: "Two-channel IC based SR upgrade module" Does this mean that it is a card which could replace a Cat. 222 A, or that it is just some chips which can be added to some existing card? If it is a card, and you have to remove the Cat. 222A to fit it then how do you play 'A' type films? Dou you have to swap cards to do it? Why would you want to fit a Cat. 222B anyway, if the CP-65 already has SR playback via the two Cat. 350s? Were some CP 65s made without the SR capability?

If the Cat. 222 SR/A provides inferior quality SR, why would you want to do it that way? The Cat. 222 SR/A is an expensive card, 1315 pounds in the list I have, the Cat. 222A is listed at 565 pounds, and the Cat. 350 at 595 pounds, so two Cat 350s plus a Cat 222A would cost 1755 pounds, not a great deal more than one Cat. 222 SR/A.

To confuse things even further, not only can a two channel 222 now do SR, as well as A but it seems there is a CP65 300, were the Cat. 350s are replaced by Cat. 300s, which can do 'A' as well as 'SR'. This is said to be for format 42, what is this? Is it one of the magnetic formats? I didn't think the CP 65 could handle Dolby encoded magnetic.

I assumed that when you selected A type playback then the card in the Cat. 222 slot would be used, and when you selected SR that the cards in the Cat. 350 slots would be used. If a single card in the Cat. 222 slot can be used for SR, and two cards in the Cat. 350 slots can be used for A type, how does the processor know which cards it should be using? What would happen if you fitted a Cat. 222 SR/A, plus two Cat. 300s, you would seem to have two of everything?

What is a DPN 98500 Mag./Optical signal routing card.

Finally, why do Dolby still produce the CP65, which I think is one of the best processors they have made, but will only supply them to studios and dubbing theatres, and why does their web site seem to be so lacking in technical information?

 |  IP: Logged

 |  IP: Logged

 |  IP: Logged

 |  IP: Logged

As for how often do you check Dolby levels... how long is a length of string? I normally make it a routine to check it once a month, unless I have reason to suspect there is a problem.