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Author Topic: Dolby DSS100 ajust time
Leo Enticknap
Film God

Posts: 7474
From: Loma Linda, CA
Registered: Jul 2000


 - posted 03-09-2015 05:57 PM      Profile for Leo Enticknap   Author's Homepage   Email Leo Enticknap   Send New Private Message       Edit/Delete Post 
Vaguely related to which, in one of our theaters we have a DSS200 and a CP650 on the same network. The server put itself forward on Saturday night (i.e. when I arrived on Sunday afternoon, it had reset itself for daylight saving time without my having to touch it). The 200 is 3 minutes fast - I presume, because the secure time in the cat745 to which it's connected is set that way.

Anyway, I then went to put the internal time in the CP650 forward, and discovered that it had also done itself, and was also three minutes fast (i.e. showing the same time as Show Manager). So I'm guessing from this that a DSS200 will automatically adjust the time of any Dolby audio processor it's configured to work with every March and October, which is a nice touch.

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Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999


 - posted 03-10-2015 06:47 AM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
I'd be AMAZED to hear that the DSS200 set the CP650's clock. The CP650's command set is "primitive" to say the least and I'm almost sure that it doesn't have any time functions on it. There is no real magic between the CP650 and a Dolby server...you can eavesdrop in on it and see that the DSS just polls it for info...continuously. I'm surprised sound processor companies like USL didn't have an optional CP650 command set to just allow a direct communication between the DSS servers...a moot point now.

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Jim Cassedy
Phenomenal Film Handler

Posts: 1661
From: San Francisco, CA
Registered: Dec 2006


 - posted 03-10-2015 10:10 AM      Profile for Jim Cassedy   Email Jim Cassedy   Send New Private Message       Edit/Delete Post 
I've never been able to figure out why the CP-650 has a clock in the first place.

The only practical use I see for it is for time-stamping events in its' error logs.

No?

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Leo Enticknap
Film God

Posts: 7474
From: Loma Linda, CA
Registered: Jul 2000


 - posted 03-10-2015 10:50 AM      Profile for Leo Enticknap   Author's Homepage   Email Leo Enticknap   Send New Private Message       Edit/Delete Post 
quote: Steve Guttag
There is no real magic between the CP650 and a Dolby server...you can eavesdrop in on it and see that the DSS just polls it for info..
It can certainly do a little more than that. If, when you configure the DSS200 (i.e. run the config script), you specify that it's on a network with a CP650, you can thereafter put volume format and level cues in show playlists (e.g. "change format to 88", "change volume to 6.3", which are then executed at the appropriate moment. So the software capability is definitely there at both ends to enable the server to send simple commands to the CP650.

I'm guessing it can control the time as well, because I can't think of any other explanation for it having set itself to the same time as is in the IMB.

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Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999


 - posted 03-10-2015 01:50 PM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
Well, yes...I didn't mean to imply that it couldn't also issue the commands it is polling for. But again, very primitive stuff here. It can't send the CP650 to format 88, persay...you can program a button like U1 to be format 88 and have the DSS200 "press" button U1 but again, no magic there. Heck, I have one DSS200 coming via the serial port (same commands...just needed the Ethernet for something else and with the DSS200 stealing the one and only port, it was more convenient to have the DSS200 come in via serial (and a Ethernet to RS232 adapter).

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Marco Giustini
Film God

Posts: 2713
From: Reading, UK
Registered: Nov 2007


 - posted 03-10-2015 05:19 PM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
Leo,
As Steve pointed out the 650 is very basic when it comes to remote control. When you change the volume the DSS is just sending a very basic string of text that tells the 650 to go to that specific fader setting, that's it.
The 750 is very similar but its list of commands allow you to do virtually everything remotely - i.e. change the amount of EQ at a specific frequency on a specific channel. The 650 only allows you to select formats, mute and volume.
The DSS keeps querying the sound processor about it's fader level - and that's how the main screen is updated in real time! [Smile]

It's like if I asked you 'what's the time?" 60 times a minute to display an accurate clock - down to a second! - on a piece of paper!

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Mattias Mattsson
Film Handler

Posts: 90
From: Göteborg, Sweden
Registered: May 2007


 - posted 03-10-2015 07:04 PM      Profile for Mattias Mattsson   Email Mattias Mattsson   Send New Private Message       Edit/Delete Post 
It would be interesting to figure out if the undocumented part of the serial protocol of the CP650 (i.e. the one used by the setup application) is also implemented for ethernet.

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Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999


 - posted 03-11-2015 06:49 AM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
It isn't...I've tried.

Industrious Clock

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