Model CP650 Digital Cinema Sound Processor Setup Software

Model CP650 Digital Cinema Sound Processor Setup Software
Model CP650
Digital Cinema Sound
Processor Setup Software
DPN 91694
Issue 3
Dolby Laboratories, Inc.
Corporate Headquarters
Dolby Laboratories, Inc.
100 Potrero Avenue
San Francisco, CA 94103-4813
Telephone 415-558-0200
Fax 415-863-1373
www.dolby.com/
European Headquarters
Dolby Laboratories
Wootton Bassett
Wiltshire, SN4 8QJ, England
Telephone (44) 1793-842100
Fax (44) 1793-842101
Far East
Dolby Laboratories International Services, Inc.
Fuji Chuo Building 6F
2-1-7, Shintomi, Chuo-ku
Tokyo 104-0041 Japan
Telephone (81) 3-5542-6160
Fax (81) 3-5542-6158
Dolby Laboratories Representative Office
Unit G, H, I, 22/Fl.
ZhaoFeng World Trade Building
No.369 Jiang Su Road
Shanghai 200050 China
Telephone (86) 21-52401448
Fax (86) 21-52400250
Dolby, EQ Assist, Surround EX, and the double-D symbol are trademarks of Dolby Laboratories. All other trademarks remain the property of
their respective owners.  2001 Dolby Laboratories, Inc. All rights reserved.
DPN 91694 Issue 3 S01/13268/XXXXX
Dolby CP650 Setup Software
Table of Contents
List of Figures
vii
List of Tables
vii
Chapter 1
Introduction
1.1
Scope of this Manual
1.2
Related Documents
1.3
Software Description
1.4
System Requirements
1.5
Hardware Connection
1.6
Software Installation
1.7
Launching the Setup Application
Chapter 2
Setup Window
2.1
Menus
2.1.1 File Menu
2.1.2 Action Menu
2.1.3 Signal Menu
2.1.4 Window Menu
2.1.5 Help Menu
2.1.6 Tool Bar
2.1.7 Status Bar
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Dolby CP650 Setup Software
2.2
2.3
2.4
Profile Tab
2.2.1 Cinema Processor Serial Number
2.2.2 Dolby Digital Reader 1/2 Unit Serial Number
2.2.3 Cinema Processor Firmware Version Number
2.2.4 Cinema Processor DSP Version Number
2.2.5 Cinema Processor Option Card
2.2.6 CP650 Ethernet Address
2.2.7 Additional Fields
Optical Tab
2.3.1 Projector 1/2
2.3.2 Lt Level and Rt Level Adjustments
2.3.3 Auto Level
2.3.4 Slit-Loss EQ
2.3.5 Left/Right
2.3.6 Auto EQ
Room Levels Tab
2.4.1 Surrounds
2.4.2 SPL Meter
2.4.3 Internal Calibration
2.4.4 Output Level Adjust
2.4.5 Signal
2.4.6 Bypass
iv
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Dolby CP650 Setup Software
2.5
2.6
2.7
2.8
2.9
B-Chain EQ Tab
2.5.1 Channels
2.5.2 EQ Assist
2.5.3 Flatten EQ
2.5.4 Bulk EQ
2.5.5 Channel Level
2.5.6 Signal Generator/Pink Noise
Subwoofer EQ Tab
2.6.1 Frequency
2.6.2 Q
2.6.3 Cut
2.6.4 Graph
2.6.5 Signal Generator/Pink Noise
Mono Tab
2.7.1 Mono Level Trim
2.7.2 Mono EQ
Misc Levels Tab
2.8.1 Opt. Surr. Level Trim
2.8.2 Nonsync 1 and 2 Level
Delays Tab
2.9.1 Surround Delay
2.9.2 Delay Calculation
v
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Dolby CP650 Setup Software
2.10
2.11
2.12
2.13
Chapter 3
Dolby Digital Tab
2.10.1 Reader Delay
2.10.2 Auto Dolby Digital
2.10.3 Reversion Mode
2.10.4 Auto Surround EX
Formats Tab
2.11.1 Enable Preset Fader Setting
2.11.2 Power-On Format
Misc. Tab
2.12.1 Mute
2.12.2 Clock
2.12.3 Noise Gating
2.12.4 Rotating Noise
Spectrum Analyzer Tab
Event Log
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Dolby CP650 Setup Software
List of Figures
1-1
2-1
2-2
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2-4
2-5
2-6
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2-8
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2-11
2-12
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2-18
2-19
Retrieve/Send Dialog Box
CP650 Setup Window
Connecting to the CP650
Update Software
Fader Law
Setup Profile Tab
Setup Optical Tab
Auto Level in Progress; Adjustment Complete; Level Out of Range
Setup Room Levels Tab
Internal SPL Meter
Error Message for Failed Calibration
Subwoofer Level
Bypass Level Adjust
Setup B-Chain EQ Tab
Setup Subwoofer EQ Tab
Setup Mono Tab
Setup Miscellaneous Levels Tab
Setup Delays Tab
Setup Dolby Digital Tab
No Reversion Warning
vii
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Dolby CP650 Setup Software
List of Figures -continued
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2-24
3-1
Auto Surround EX Warning
Setup Dolby Digital Tab
Setup Miscellaneous Tab
Rotating Noise
Setup Spectrum Analyzer
Event Log Example
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3-2
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Dolby CP650 Setup Software
List of Tables
2-1
2-2
2-3
Dolby Digital Reader Models
User Formats
Power On Formats
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Dolby CP650 Setup Software
Chapter 1
Introduction
1.1
Scope of this Manual
This manual describes the use of the CP650 Setup Program, a Windows application
for configuring the CP650.
1.2
Related Documents
Model CP650 Digital Cinema Sound Processor, Dolby Part No. 91569.
1.3
Software Description
This software is designed to set up and configure the Dolby CP650 from a computer
running Microsoft Windows. The software can be run either as a stand-alone application
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Dolby CP650 Setup Software
Introduction
or connected to a CP650. In either case, parameter files can be saved on the PC hard
disk for later retrieval and editing.
1.4
System Requirements
The CP650 Setup Program runs on Windows 95, Windows 98, Windows NT 4.0 or
later, Windows 2000, or Windows ME. The computer used should be a 486-type or
better and have ten megabytes of available disk space. Only a single instance of the
application can run at one time.
1.5
Hardware Connection
1. Connect an RS-232 serial cable (pin-to-pin) to any available serial port on your
Windows machine.
2. Connect the other end to the "SERIAL DATA" port on the CP650 (either front or
rear port).
Note: Only one serial device may be connected to the CP650 at a time.
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Dolby CP650 Setup Software
1.6
Introduction
Software Installation
The CP650 Setup software may be provided on diskettes or CD ROM.
Note: If you have an earlier version of CP650 Setup installed, remove it before
installing new software. The new setup software works with all versions of system
software. Older versions of CP650 Setup may not work with newer system software.
Installation from Diskette
1. Place diskette 1 in the PC and run Setup.exe.
2. Select the desired language.
3. Follow screen prompts until installation is complete.
Installation from CD ROM
1. Open the CP650 Setup folder and run Setup.exe.
2. Select the desired language.
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Dolby CP650 Setup Software
Introduction
3. Follow screen prompts until installation is complete.
1.7
Launching the Setup Application
1. Launch the CP650 Setup Program. Click the Start button and scroll to Programs.
In the Dolby folder, select Dolby CP650 Setup.
2. From the Action menu, select Communications Setup. Select the Com port to be
used to communicate with the CP650.
3. From the Action menu, select Connect to connect to the CP650.
4. You may be prompted to Send or Retrieve the settings. Once connected, the
CP650 front panel should indicate External Control Active.
5. Adjust settings using the Setup window.
When Connect is selected from the menu or tool bar, Setup attempts to connect the
selected communications port of the PC to the serial interface of the CP650. Upon
connection, CP650 Setup automatically retrieves the parameter file from the
processor or prompts to Retrieve or Send settings. If Retrieve is selected, Setup
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Dolby CP650 Setup Software
Introduction
prompts to save the current settings (existing parameter file in the PC prior to
retrieving settings from the CP650). If Send is selected, the parameter file that is open
in the PC is sent to the CP650.
Figure 1-1 Retrieve/Send Dialog Box
Once connected, the user can adjust settings through the Setup tab property pages.
Any changes to the settings, such as moving a slider control, are reflected
immediately in the current operation of the CP650. Changes are saved to the
permanent CP650 Flash memory upon disconnect or exit from the Setup software. If
the CP650 is turned off before disconnecting from the Setup software, any parameter
changes will be lost.
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Dolby CP650 Setup Software
Introduction
Note: This is different from the front panel of the CP650 operation. On the front
panel, the user must explicitly Save each change via the OK button before leaving the
screen for that setting.
When connected, the fader knob is locked out; the Mute button remains functional.
Any adjustment marks the open parameter file as modified, and any attempt to exit or
open a different file prompts the user to save the current file.
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Dolby CP650 Setup Software
Chapter 2
Setup Window
The main window of Setup contains the title bar, which displays the application name
and the name of the current parameter file, a menu bar, tool bar, status bar, and the tab
property pages.
Figure 2-1 CP650 Setup Window
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Dolby CP650 Setup Software
Setup Window
The program opens with a new, untitled parameter file window. Once any setting is
altered in the current parameter file, that file is thereafter known as “modified.” Once
modified, any attempt to open a different file (new or existing) or exit the application
prompts the user to save the current settings. The file can be saved with the same file
name that was opened or, in the case of the Untitled file, to a new file name on the
PC. The user can work with the software at length in this manner to create files with
different configurations, all without ever connecting to a cinema processor.
Note: A number of setup tabs cause the format of the CP650 to change automatically
if connected. This change is not reflected on the front panel of the CP650.
When leaving a tab that has forced a format change, the previous format is restored.
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Dolby CP650 Setup Software
2.1
Menus
2.1.1
File Menu
Setup Window
New (Ctrl+N)
When a New file is requested, the current document is closed (the user is prompted to
save if the current document has been modified) and a new Untitled document with
default settings is opened.
Open (Ctrl+O)
Opens an existing file from the PC file system, with a filter for *.dby files and CP650
configuration files. When a file is chosen, the user is prompted to save the current file
if it has been modified.
Save (Ctrl+S)
Use Save to save the current settings. In the case of an untitled document, there is a
prompt for a file name.
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Dolby CP650 Setup Software
Setup Window
Save As
Use Save As to save the current settings to a file other than the file open in the Setup
window. That file then becomes the current Setup file.
Revert to Saved
Use Revert to Saved to ignore any changes made to the open file and revert to the
previously saved version of that file. A confirmation prompt is displayed. After the
original file is loaded, the settings are automatically sent to the CP650, if connected.
Previous Files
When the File menu is opened, a list of the most recently used files from the PC file
system is displayed.
Exit (Alt+F4)
This command disconnects from the CP650 (if connected), closes the current
document, prompts to save (if modified), and exits the application. This operation is
canceled if the user chooses Cancel when prompted to save the current modified
document.
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Dolby CP650 Setup Software
2.1.2
Setup Window
Action Menu
Connect/Disconnect
The Connect command is used to establish a serial connection to a CP650. After
connecting, this Action menu command changes to Disconnect. The Disconnect
action severs the serial connection and restores the CP650 to normal stand-alone
operation. There is no confirmation prompt when Disconnect is selected. After
disconnecting, the Action menu command changes back to Connect.
Figure 2-2 Connecting to the CP650
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Dolby CP650 Setup Software
Setup Window
If successfully connected, the prompt to either Send or Retrieve settings may be
displayed. Pressing Esc at this time cancels the connection.
Update Software (Ctrl+U)
The CP650 software may be updated from a file on the PC. The CP650 automatically
reboots once the software update is complete. Following the reboot, CP650 Setup
reconnects and refreshes the CP650 settings to the same state they were in prior to
the update.
One of the key functions of the Setup software is to update the embedded control and
DSP code in the Flash memory of the cinema processor. The update comes as a single
package that represents a complete system snapshot. This package is available as a
distribution disk or from the Dolby extranet website. Upon selection of the Update
Software action, Setup prompts to save the current settings before proceeding. This is
not absolutely necessary as the existing parameters are packaged with the new
software; however, it is always a good idea to save settings. Setup presents an Open
file dialog to locate the file on disk. The software update file has a file extension of .bin.
Upon reading this file, Setup presents the Update Software dialog that displays:
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Dolby CP650 Setup Software
Setup Window
Figure 2-3 Update Software
Click Update Now to begin the uninterruptible process.
Caution: The update process should not be interrupted. If the connection is lost during
the update process, reconnect the CP650 and restart the software update process.
If the software update is not completed successfully before the CP650 main power is
turned off, the CP650 will become inoperable.
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Dolby CP650 Setup Software
Setup Window
Mute (Ctrl+M)
The Action menu Mute command is equivalent to pushing the Mute button on the
front panel or clicking the Mute button on the Setup toolbar. The command toggles
the mute state of the CP650.
Communications Setup
Use the Communications Setup command to select the communications port for
serial connection to the CP650. A list of the communication ports is displayed. Only
available ports may be selected.
2.1.3
Signal Menu
The Signal menu allows the selection of the signal to be used for several alignment
operations. Certain setup tabs will force or provide their own signal selection options.
The current signal selection is displayed in the status bar area at the bottom of the
main window.
Program
Selecting Program effectively restores the cinema processor to the last format that
was in effect.
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Dolby CP650 Setup Software
Setup Window
The available test signals available on the CP650 are:
•
•
•
•
2.1.4
100 Hz sine wave.
1 kHz sine wave.
10 kHz sine wave.
Thump, at one-second intervals. This low-frequency signal is used to check the
speaker phase.
Window Menu
Event Log
The Event Log command displays the Event Log window. The Event Log
immediately receives and displays the current event log information from the cinema
processor. This log includes a date/time stamp, summary, and description for each
event. The source and details of each event are determined by the cinema processor
control software.
The Event Log window provides options for printing the Event Log and saving the
Event Log as text.
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Dolby CP650 Setup Software
2.1.5
Setup Window
Help Menu
About this Software…
This window displays the revision number of the Setup software, and copyright and
license information.
2.1.6
Toolbar
The toolbar includes buttons for quick access to commonly used menu commands, a
master fader, and mute control. The toolbar is oriented vertically on the left edge of
the window and contains buttons for the following commands:
New
When a New file is requested, the current document is closed (a prompt appears to
save the current document if it has been modified) and a new Untitled document with
default settings is opened.
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Dolby CP650 Setup Software
Setup Window
Open
Use the Open command to open an existing file from the PC file system. Cinema
Processor files have the extension .dby. If a file is chosen, the current file is closed
with a prompt to Save if modified.
Save
Save is enabled if the current document is modified. It saves the document, with its
current settings, with the same name. In the case of an untitled document, the user is
prompted for a file name. After performing a Save, the Save menu option is disabled,
as the document is no longer modified.
Connect/Disconnect
Use the Connect command to establish a serial connection to the cinema processor. If
successfully connected, follow the prompt to either Send or Retrieve settings as
necessary. After connecting, this command changes to Disconnect.
The Disconnect action severs the serial connection and restores the CP650 to normal
stand-alone operation. The Setup software does NOT prompt, save, exit, close, or
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Dolby CP650 Setup Software
Setup Window
otherwise alter the current parameter file when disconnecting. The Disconnect
command then changes back to Connect. Upon disconnection, any changes made to
the CP650 settings are made part of the permanent Flash memory in the unit.
Master Fader
The function of the fader is to adjust the gain of the output according to the
Fader Law shown in Figure 2-4. As the Fader increases from 0 to 4 in
increments of 0.1, the gain increases from –90 dB to –10 dB. This translates
to an increase of 20 dB per whole fader unit. As the fader increases from 4 to
10 in increments of 0.1, the gain increases from –10 dB to 10 dB. This
translates to an increase of 3 1/3 dB per fader unit. The fader level is
displayed on the CP650 front panel in a two-digit, seven-segment display.
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Dolby CP650 Setup Software
Setup Window
10
3 1/3 db
per step
0
-10
-20
-30
Output
-40
Level (dB)
20 dB
per step
-50
-60
-70
-80
-90
0
1
2
3
4
5
6
Fader Level
7
8
9
10
Figure 2-4 Fader Law
The master fader includes a fader level display, a slider to adjust the level, and a mute
button that correspond directly to the analogous display and controls on the front
panel of the cinema processor. The master fader is enabled whenever the Setup
software is connected, except when a tab is displayed which prescribes that the master
fader be fixed at 7.0 (e.g., B-Chain EQ, Room Levels when Pink Noise is selected).
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Dolby CP650 Setup Software
Setup Window
Mute
The Mute button controls the master mute function of the CP650. When the mute
function has been activated, the Mute key on the CP650 front panel flashes. When
the unit is unmuted, the illumination extinguishes. The speed at which the
mute/unmute functions occur are set with the Fade In Speed and Fade Out Speed
control described in Section 2.12.1.
2.1.7
Status Bar
This area at the bottom of the main window displays help text for menu options, the
current status of the signal source, and the cinema processor link status, Connected
along with the baud rate, or Disconnected.
2.2
Profile Tab
This tab allows the user to enter identifying information about the cinema processor,
theatre, and settings file. When a new file is created (at startup or by using File→New),
this becomes the top tab, and the cursor is set to the first field for data entry.
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Dolby CP650 Setup Software
Setup Window
The Profile tab is used to record system configuration details. The information entered,
along with the setup parameters, can then be saved to a file and reloaded as needed.
Figure 2-5 Setup Profile Tab
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Dolby CP650 Setup Software
2.2.1
Setup Window
Cinema Processor Serial Number
Enter the serial number of the cinema processor to maintain a full record of the
system setup.
2.2.2
Dolby Digital Reader 1/2 Unit Serial Number
Enter the digital reader serial numbers to maintain a full record of the system setup.
2.2.3
Cinema Processor Firmware Version Number
Information about the cinema processor is sent from the CP650 to the PC when a
connection is made. The Firmware Version Number, DSP Version Number,
Option Card, and Ethernet address are then be displayed.
2.2.4
Cinema Processor DSP Version Number
The CP650 module version string is sent from the CP650 to the PC when a
connection is made.
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Dolby CP650 Setup Software
2.2.5
Setup Window
Cinema Processor Option Card
Information about installed option cards is sent from the CP650 to the PC when a
connection is made.
2.2.6
CP650 Ethernet Address
The Ethernet address of the cinema processor is read by the PC and displayed on this tab.
2.2.7
Additional Fields
Enter data for the remaining fields as desired: Project Name, Theatre Name, Screen
Number, Projector Model Number, Automation System, and Comments. These
entries, along with cinema processor serial number (see 2.2.1 above) and reader serial
number (see 2.2.2 above) are saved to the .dby file on disk.
2.3
Optical Tab
This tab is used to configure the optical settings in the cinema processor, including
level and slit-loss equalization. When the Optical tab is selected, the format
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Dolby CP650 Setup Software
Setup Window
automatically changes to allow the appropriate adjustments. Optical adjustments
require the use of Cat. No. 69T and Cat. No. 69P test films.
Figure 2-6 Setup Optical Tab
2.3.1
Projector 1/2
Click on Projector 1 or Projector 2 to begin adjustment of projector one or two.
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Dolby CP650 Setup Software
2.3.2
Setup Window
Lt Level and Rt Level Adjustments
While running Cat. No. 69T, Dolby Tone Test Film, Lt and Rt levels may be adjusted
individually using the associated slider until both green elements are illuminated. This
ensures the correct input level to the CP650. Alternately, click Auto Level to allow
the CP650 to perform the adjustment.
2.3.3
Auto Level
Click Auto Level to allow the CP650 to automatically adjust the Lt and Rt preamp
gain levels.
Figure 2-7 Auto Level in Progress;
Adjustment Complete;
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Level Out of Range
Dolby CP650 Setup Software
2.3.4
Setup Window
Slit-Loss EQ
The Slit-Loss EQ is an equalization curve that compensates for optical deficiencies
resulting from slit-height variations. The curve provides a unique high-frequency
boost that compensates for these variations. The level of correction necessary varies
by reader type. Typically, reverse-scan basement readers require less adjustment than
forward-scan readers.
2.3.5
Left/Right
Adjust the Left and Right Slit-Loss EQ for the most extended high-frequency
response without forming a peak. (Click the Left or Right slider to activate the
spectrum analyzer display.)
2.3.6
Auto EQ
Alternately, click Auto EQ to allow the CP650 to perform the adjustment. A
dramatic difference in the Left and Right levels may indicate an optical problem.
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2.4
Setup Window
Room Levels Tab
The current signal selection (Pink Noise, Program, 100 Hz, etc.) is maintained
between pages that support the Pink Noise option (B-Chain EQ, Room Levels, and
Subwoofer EQ). Switching the signal mode to Pink Noise clears all the channels.
With Pink Noise on, all channels are mutually exclusive—selecting any one clears
any other selection. To select multiple surround channels, hold the Control key down
while making selections. The subwoofer channel is independent in all cases.
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Setup Window
Figure 2-8 Setup Room Levels Tab
2.4.1
Surrounds
Surrounds define the configuration of the surround channels for output-level adjust
and B-Chain EQ. If operating disconnected, the interface provides two options for
surround configuration. If connected and a Surround EX adapter card is installed in
the CP650, the selection is forced to Surround EX and the button is disabled. If no
Surround EX card is installed, the Surround EX button choice is not available.
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Setup Window
Conventional 5.1
This is the default setting. Dolby Digital utilizes discrete left and right surround
channels. During optical film playback, both Ls and Rs are fed an identical mono
surround signal.
Surround EX
Surround EX includes channels Ls, Bsl (back surround left), Bsr (back surround
right), and Rs.
2.4.2
SPL Meter
The Internal SPL meter can be used to set room levels of each channel, if calibrated.
The microphone is connected through either the rear XLR connector or the front Mic
Mux connector.
Figure 2-9 Internal SPL Meter
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Dolby CP650 Setup Software
2.4.3
Setup Window
Internal Calibration
Click Calibrate Internal Meter to enable microphone calibration. Pink Noise is then
routed through the center channel. While using an external SPL meter in close
proximity to the microphone, dial in the SPL reading to match what is detected in the
theatre. Click Calibrate to calibrate the CP650 and the microphone to the SPL
reading. If an error message occurs, indicating the microphone level is too low or too
high, check your connections, phantom power, and mic level trimpot located on the
front panel of the CP650.
Figure 2-10 Error Message for Failed Calibration
2.4.4
Output Level Adjust
This group provides checkbox, label, static value display, and slider controls for each
channel as determined by the current Surround configuration. The value always
displays the current channel slider setting which, when connected, always matches
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Dolby CP650 Setup Software
Setup Window
the setting currently in use in the cinema processor. When leaving the Room Levels
page, all channels are activated.
Subwoofer Level
Clicking this button brings up the Subwoofer Level dialog box. This window provides
for level trim of the two subwoofer modes, optical and digital. Checkboxes are
provided to turn Center Noise and Reverse Sub Polarity on and off when Optical
Level is selected; these checkboxes are disabled when Digital Level is selected.
Note: The reference values are not displayed on the Subwoofer spectrum analyzer
until the microphone is calibrated.
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Dolby CP650 Setup Software
Setup Window
Figure 2-11 Subwoofer Level
The initial level setting for the digital subwoofer is 1. The optical subwoofer level is
relative to the digital level. If making adjustments to one, check the other.
Center Noise and Reverse Sub Polarity are only available when adjusting the
Optical Subwoofer Level.
The Center Noise checkbox corresponds to the Center channel checkbox on the
Room Levels tab. It is initially selected if the Center channel checkbox was selected
on the Room Levels tab. If using the Setup analyzer, Center Noise should come up
to the 0 dB line. Digital subwoofer level should be trimmed to +10 dB, while the
optical subwoofer level should be trimmed to 0 dB.
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Setup Window
The Reverse Sub Polarity checkbox is initially clear. It is used to check for
subwoofer center channel phase matching. With Optical Level and Center Noise
selected, there should be some adding of the lower frequencies; with Reverse Sub
Polarity selected, there should be some noticeable subtraction of lower frequencies.
If the Reverse Sub Polarity checkbox is set when leaving the Subwoofer Level
window, a warning message to verify speaker connections is displayed and the
polarity returned to normal.
2.4.5
Signal
Signal Generator
The Signal Generator selection is maintained between pages that support the Pink
Noise option (B-Chain EQ, Room Levels, and Subwoofer EQ).
Pink Noise
Dolby Level pink noise is used when this is selected. Initial selection of this option
clears all output channels. The user must then manually select to which channels to
apply the noise. If Pink Noise is selected when switching to a setup tab other than BChain EQ or Subwoofer EQ, the noise is turned off, and the signal output is returned
to the global signal generator setting.
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Dolby CP650 Setup Software
2.4.6
Setup Window
Bypass
Pressing the Bypass Level button invokes the Bypass Level Adjust window. This
places the CP650 in Format 05. Clicking the Bypass On checkbox switches the
CP650 into Bypass mode. Adjust the Bypass Level trimpot to match the SPL of the
same film in Format 05.
Figure 2-12 Bypass Level Adjust
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Dolby CP650 Setup Software
2.5
Setup Window
B-Chain EQ Tab
The B-Chain EQ tab is used to adjust each channel’s frequency response to achieve
the desired response curve. This is achieved by using a combination of bulk and onethird octave EQ.
Figure 2-13 Setup B-Chain EQ Tab
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Dolby CP650 Setup Software
2.5.1
Setup Window
Channels
The current channel name appears at the top of the B-Chain EQ tab, as selected at
the bottom of the tab. The solid line on the graph represents the standard ISO 2969
curve. When one of the frequency sliders is selected, the corresponding line segment
is yellow. The slider can then be adjusted for boost or cut.
With the cursor anywhere on the B-Chain EQ tab, click the right mouse button to
display Copy and Paste functions. These may be used to copy frequency settings from
one channel to another.
2.5.2
EQ Assist
Use this button to apply an approximation algorithm to bring the EQ for the channel close
to the desired response curve. Bulk EQ as well as amplifier gains should always be
adjusted before applying EQ Assist. EQ Assist is only enabled if the Internal SPL
Meter has been calibrated on the Room Levels screen and Pink Noise is activated.
2.5.3
Flatten EQ
Click Flatten EQ to return all frequency bands and Bulk EQ to zero. A prompt
appears for confirmation.
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Dolby CP650 Setup Software
2.5.4
Setup Window
Bulk EQ
Bulk EQ is used to adjust the bulk equalizers. It is important to adjust both the Bass
and the Treble EQ prior to adjusting the individual one-third-octave bands.
Bass Level
The Bass Level is adjustable from –6 to +6 dB in 0.2 dB steps. Use the slider to make
adjustments to match the reference curve.
Treble Level
The Treble Level is adjustable from –10 to +10 dB in 0.2 dB steps.
Treble Freq
The treble corner frequency can be 1, 2, 3, or 4 kHz, and only applies to the Left,
Center, and Right channels. Adjust to match the reference curve as closely as
possible. (The corner frequency is fixed at 2 kHz for the surround channels.)
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Dolby CP650 Setup Software
2.5.5
Setup Window
Channel Level
This slider may be used to adjust the output level of the currently selected channel
and is reflected on the Room Levels tab. This does not affect the overall level seen on
the spectrum analyzer because the average of frequency bands 7 through 20 is always
placed at 0 dB.
2.5.6
Signal Generator/Pink Noise
Buttons are provided to select the signal source as Signal Generator or Pink Noise.
The spectrum analyzer is only active when Pink Noise is selected.
2.6
Subwoofer EQ Tab
This screen in used to adjust the subwoofer’s parametric equalizer. The three parameters
that define the equalizer are Frequency, Q, and Cut. Identify a frequency region that
may contain a peak and adjust the parametric equalizer to obtain a flatter response.
Note that the vertical axis will be unlabeled if the Internal SPL Meter was not
calibrated from the Room Levels tab.
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Dolby CP650 Setup Software
Setup Window
Figure 2-14 Setup Subwoofer EQ Tab
2.6.1
Frequency
The filter’s center Frequency is adjustable from 25 to 125 Hz. The approximate
corresponding band is highlighted on the real-time analyzer.
2.6.2
Q
The Q defines the width of the Cut band. The Q settings are 0.5, 1, 2, and 4.
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Dolby CP650 Setup Software
2.6.3
Setup Window
Cut
The Cut value is applied to the center Frequency as selected above, reducing the
output level in the Q region. The cut amount is adjustable between 0 and –12.0 dB in
0.2 dB steps.
2.6.4
Graph
When Pink Noise is activated, the graph displays the subwoofer frequency response.
With 0.0 dB of Cut, identify the frequency region with the tallest bump. Adjust
Frequency, Q, and Cut to achieve the flattest frequency response.
2.6.5
Signal Generator/Pink Noise
Buttons are provided to select the signal source as Signal Generator or Pink Noise.
2.7
Mono Tab
Selecting the Mono tab sets the CP650 to Format 01. The functions on this tab apply
to the Center channel while in Format 01.
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Dolby CP650 Setup Software
Setup Window
Figure 2-15 Setup Mono Tab
2.7.1
Mono Level Trim
Mono Level Trim adjustment can vary between –12 dB and 0 dB in 0.2 dB steps.
This trim is an offset from the normal playback level.
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Dolby CP650 Setup Software
2.7.2
Setup Window
Mono EQ
While monitoring film program material, adjust Mono EQ for preferred audio tonal
quality. There are 16 steps between the low-frequency and high-frequency settings for
the Mono EQ.
2.8
Misc Levels Tab
The Misc Levels tab provides sliders for adjusting the Optical Surround Level
Trim and Nonsync 1 and 2 levels.
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Dolby CP650 Setup Software
Setup Window
Figure 2-16 Setup Miscellaneous Levels Tab
2.8.1
Opt. Surr. Level Trim
The Optical Surround Level Trim is adjustable from –3 dB to +6 dB in 0.2 dB
steps. This applies to optical surround playback.
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Dolby CP650 Setup Software
2.8.2
Setup Window
Nonsync 1 and 2 Level
The Nonsync 1 and 2 adjustments are controlled by sliders. The number is unitless,
and ranges from 1 to 127.
2.9
Delays Tab
The Optical Surround Delay should be adjusted so that sounds from the rear of the
theatre (surround channels) arrive at the listener’s ear approximately 20 ms after the
arrival of sound from the screen speakers.
The Digital Surround Delay should be adjusted so that sounds from the rear of the
theatre arrive at the listener’s ear at the same time as the screen speakers.
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Dolby CP650 Setup Software
Setup Window
Figure 2-17 Setup Delays Tab
2-39
Dolby CP650 Setup Software
2.9.1
Setup Window
Surround Delay
Optical
The Optical Surround Delay is adjustable from 20 to 150 ms in 1 ms steps. When
the Optical delay level is set manually, the Digital delay automatically changes to the
same level minus 20 ms, but can be adjusted separately.
Digital
The Digital Surround Delay is adjustable from 20 to 150 milliseconds in 1 ms steps.
2.9.2
Delay Calculation
The Setup program can calculate and set both Optical and Digital Surround Delay
values based on theatre measurements entered here.
Feet/Meters
Measurements may be made in Feet or Meters. Select the desired units.
Distance from screen to rear wall of theatre
Values must be between 10 and 200, Feet or Meters.
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Dolby CP650 Setup Software
Setup Window
Average distance between left and right surround channels
Values must be between 10 and 140, Feet or Meters.
Calculate
Click Calculate to calculate and automatically set the Surround Delay.
2.10 Dolby Digital Tab
Selecting the Dolby Digital tab automatically sets the CP650 to Format 10, Dolby
Digital.
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Dolby CP650 Setup Software
Setup Window
Figure 2-18 Setup Dolby Digital Tab
2.10.1
Reader Delay
Reader Delay adjustment is used to synchronize the digital soundtrack with the
analog track and the picture. It can be set by selecting the reader model or by
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Dolby CP650 Setup Software
Setup Window
manually adjusting the number of perforations when using the Cat. No. 1010 Sync
Test Film.
Select Dolby Digital Reader Model
The specific reader model selection is shown in Table 2-1. Selecting a reader model
provides an approximation of the correct reader delay. Adjust the delay using the Cat.
No. 1010 Sync Test Film.
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Dolby CP650 Setup Software
Setup Window
Table 2-1 Dolby Digital Reader Models
Reader Model
Other (default)
Dolby Cat. No. 699/700/701
Ballantyne 35 penthouse
Century Projector with Component Engineering or Kelmar basement
Century 35 mm (SA) penthouse
Century 35/70 (JJ) penthouse
Christie basement
Christie penthouse
Cinemeccanica V5 basement
Cinemeccanica V5 penthouse
Cinemaccanica V8 penthouse
Ernemann 15
Kinoton FP30
Norelco/Kinoton AAll (DP70) penthouse
Simplex with Component Engineering or Kelmar basement
Simplex 35 mm (XL) penthouse
Simplex 35/70 penthouse
2-44
Perforations
20
250
247
20
245
309
26
250
28
252
260
30
21
283
26
242
298
Dolby CP650 Setup Software
Setup Window
Perforations
The number of Perforations to delay can be set from 16 to 512 using the up and
down arrows. When a reader is selected, as described above, the number of
perforations changes accordingly.
2.10.2
Auto Dolby Digital
If Dolby Digital is playing and another film format is selected, the CP650 goes into
the selected format, and auto digital is temporarily disabled. Auto Digital is reenabled when a non-film format is asserted and then a film format is asserted. At that
time the system is ready to automatically go into the target format when Dolby
Digital audio appears.
Auto Digital Target
The Auto Digital Target may be format 10, or format 13 if a Surround EX card is
installed.
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Dolby CP650 Setup Software
2.10.3
Setup Window
Reversion Mode
Figure 2-19 No Reversion Warning
With Reversion Mode set to Normal, the audio may revert to the analog soundtrack
if necessary. A setting of No Reversion keeps the CP650 in the target format
regardless of the condition of the Dolby Digital data.
2.10.4
Auto Surround EX
The CP650 automatically switches to Surround EX mode when all the following
conditions are met:
• A Surround EX option board is installed.
• Format 10 is asserted.
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Dolby CP650 Setup Software
Setup Window
• Surround EX is present within the Dolby Digital data.
• Auto Surround EX is enabled.
Figure 2-20 Auto Surround EX Warning
2.11 Formats Tab
Use the Formats tab to enable and assign Preset Fader Settings, User Formats, and
to select the Power-on Format.
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Dolby CP650 Setup Software
Setup Window
Figure 2-21 Setup Dolby Digital Tab
2.11.1
Enable Preset Fader Setting
Click on a box to enable the Preset Fader. Use the up and down arrows to modify the
Fader Setting between 0.0 and 10.0. The default Fader Setting is 7.0.
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Dolby CP650 Setup Software
Setup Window
User 1, User 2, and Nonsync
User 1, User 2, and Nonsync may be set to any of the formats listed in Table 2-2.
Table 2-2 User Formats
Number
01
04
05
10
11
13
20
22
42
60
61
64
Format
Mono
Dolby A-type
Dolby SR
Dolby Digital
External 6-Channel
Dolby Digital Surround EX
35 mm Magnetic, 3-Channel
35 mm Magnetic, 4-Channel
70 mm Dolby Stereo
Nonsync 1
Nonsync 2
Public Address Center Channel
Number
65
66
70
71
73
74
75
80
81
87
92
93
2-49
Format
Public Address Surround Channels
Test Tone 320 Hz
Video PA (NS1)
Video Mono (NS1)
Video LCR (NS1)
Video Pro Logic no Subwoofer (NS1)
Video Pro Logic with Subwoofer (NS1)
Digital Input
External Dolby Digital Surround EX
External 6-Channel with Surround EX
Dolby SR (6-Channel In)
Dolby SR (NS1)
Dolby CP650 Setup Software
2.11.2
Setup Window
Power-On Format
Select the audio format for the CP650 when power is turned on.
Table 2-3 Power On Formats
Power On Formats
Last Format
Format 01
Format 04
Format 05
Format 10
Format 11
User 1
User 2
Nonsync
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Dolby CP650 Setup Software
Setup Window
2.12 Misc. Tab
Figure 2-22 Setup Miscellaneous Tab
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Dolby CP650 Setup Software
2.12.1
Setup Window
Mute
The length of time for sound to fade from normal to mute, when Mute is selected, is
the Fade Out Speed. The time to return from muted to normal is the Fade In Speed.
Both are adjustable from 0.2 to 5.0 seconds in 0.1-second intervals using the
appropriate slider.
2.12.2
Clock
The current PC time and date are displayed. Use the Set CP650 Clock button to
synchronize the CP650 clock to the PC time.
2.12.3
Noise Gating
Pressing this button puts the CP650 into noise gate mode. Click OK to exit the noise
gate mode. When in noise gating mode, an automation line controls an internal pink
noise source. Pink noise is activated by shorting the automation line-associated pin to
ground (pin 12); pin numbers 1 through 8 represent L, C, R, Ls, Rs, SW, all, and Bs
channels, respectively.
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Dolby CP650 Setup Software
2.12.4
Setup Window
Rotating Noise
When Rotating Noise is selected, a five-second pink noise signal is sent to each speaker
sequentially. The channel currently running pink noise is indicated in the display.
Click Pause to halt the pink noise to the current channel; click Done to exit from the
Rotating Noise test.
Figure 2-23 Rotating Noise
Caution: The rotating pink noise is set to 85 dB for all channels during this test.
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Dolby CP650 Setup Software
Setup Window
2.13 Spectrum Analyzer Tab
The Spectrum Analyzer tab displays the frequency response of the selected audio
input. When the tab is selected, the default format is Nonsync 1. Only one channel
may be selected at a time.
Figure 2-24 Setup Spectrum Analyzer
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Dolby CP650 Setup Software
Chapter 3
Event Log
Choosing the Event Log from the Window menu brings up the Event Log window.
The Event Log immediately receives and displays the current event log information
from the CP650. This log includes a date/time stamp, summary, and description for
each event.
The Event Log window provides options for printing the Event Log and saving the
Event Log as text. An example is on the following page.
3-1
Dolby CP650 Setup Software
Setup Window
Cinema Processor Event Log
File
Date
Time
C:\My Documents\CP650\Event Logs\ken's unit.txt
12Mar2001
14:05:30
System version
Setup version
1.2.1.4
1.2.1.3 Beta
Cinema Processor Option Card: Cat. No. 773 / Cat. No. 794
Cinema Processor DSP Version Number: 020203030403030202
Cinema Processor Ethernet Address: 00 D0 46 00 00 2E
Time
---13-JAN-00 00:34:07
12-MAR-01 13:37:37
12-MAR-01 13:38:41
Summary
------Startup
Startup
Startup
Figure 3-1 Event Log Example
3-2
Description
-----------
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