Файл: DMC_Manual.pdf

Play Pass

The Play Pass is the Mix/Pass that is being used to play back a previous recording of automation moves (events).

Any Mix/Pass can be selected from the current Mix/Pass Tree to be the Play Pass.

Pointer

The arrow shaped symbol that is moved across the screen by rolling the mouse. The point of the arrow is the active 'hotpoint' that selects items pointed to when the mouse button is clicked.

The shape of the pointer is context sensitive. For instance, the pointer sometimes changes shape to an hourglass (to indicate the computer is busy) or an I-beam (for selecting text).

Processing Element

The console is a digital console that, depending on the specification, has a certain amount of processing power available. The processing power is provided by the XSP cards in the SPS Rack.

The processing power is assigned in portions according to how the console is configured for the current session.

Each signal path requires a certain amount of processing power. A signal path can also contain audio processing, such as EQ or dynamics, and this also uses processing power.

A processing element is one of the individual items of audio processing (a gate, three band equaliser, etc.).

The processing elements (and the processing power required) are assigned (or allocated) to the signal paths in advance of being used.

The system works out how much processing power would be required for the configuration requested and if there is too much then the excess is rejected.

Anything that applies changes to a signal in a path uses processing - this even includes the fader.

Quad-Madi II Card

Each Quad-Madi II card has 4 pairs of madi ports, each pair consisting of one Transmit port (Tx) and one Receive port (Rx).

These pairs of ports are usually accessed from the back of the SPS rack (or they can be accessed from the front of the card itself (the upper port in each pair is Tx).

QuadMadi cards bring madi signals into the system and place the data on the backplane where the XSP cards can access, process, and then return this information.

QMII cards are available in three versions, depending on the amount of assignable delay required (none, 5secs total or 10secs total).

The card is also responsible for:

•Assigning Delay to a signal, either on Input or Output.

•Generating most (if not all) of the meter data seen on the meter bridge and fader beds.

•Dither on Outputs

•The system timing, ensuring all of the XSP processing cards run in sync.

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Radio Button

Used to select one option from a limited list of options, as shown in the example, left.

Only one radio button in a set can be selected.

Selecting a radio button automatically de-selects the previously selected radio button.

Fig 96: Radio buttons

Record Pass

A Record Pass is made when the transport is in play and changes to control values are recorded against timecode.

At least one new automation event must be created by a control in a record mode. A new Mix/Pass number is created and displayed in red on the Encore screen.

SPS Rack

The largest rack in the system, responsible for the main audio processing.

Sync Source

This is the source for the word clock synchronisation signal that is used to ensure that samples of digital audio are sent and received simultaneously by digital audio devices that are connected together.

Timecode

Timecode is a coded signal that is used to set the absolute timeline position.

The source for timecode can be a tape machine (digital or analogue) or a pulse generator (video source).

Virgin Territory

This is an expression used to describe parts of a Mix/Pass (or a series of Mix/Passes) for which there is no automation data and no settings in the Initial Snapshot.

The console takes an Initial Snapshot of all controls that can be automated. This means that the console never has virgin territory, so any problems that virgin territory may cause are prevented.

Word Clock

This is a synchronisation signal that is used by digital audio equipment. Word clock ensures that the digital audio itself is synchronised so that artefacts such as distortion, crackle and drop outs do not occur.

For instance, if the console is recording to a digital multi-track tape machine then they must be synchronised to send and receive each digital sample of audio simultaneously.

If they were not synchronised (out of phase) then the tape machine would record the samples incorrectly, so that the recording would not match the output from the console. The rate at which word clock is running sets the sample rate (e.g. 44.1kHz) for the devices reading the word clock.

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This should not be confused with timecode (or timeline) which is used to keep devices lined up at the same time position.

xFade

This is an abbreviation of Crossfade.

It is used in dialogue boxes in Encore to indicate where crossfade times can be entered (e.g. for Mix Conforming).

XSP

Acronym for Xtra Signal Processing. This are the main processing cards in the SPS rack, and they are responsible for all the Audio and Dynamic processing.

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•Stop and start system services which are not started by default.

Power Users do not have permission to add themselves to the Administrators group.

Power Users do not have access to the data of other users on an NTFS volume, unless those users grant them permission.

Caution!

Running legacy programs on Windows 2000 or Windows XP Professional often requires you to modify access to certain system settings. The same default permissions that allow Power Users to run legacy programs also make it possible for a Power user to gain additional privileges on the system, even complete administrative control. Therefore, it is important to deploy certified Windows 2000 or Windows XP Professional programs in order to achieve maximum security without sacrificing program functionality. Programs that are certified can run successfully under the Secure configuration provided by the Users group. For more information, see the Security page on the Microsoft Web site(http://www.microsoft.com).

Since Power Users can install or modify programs, running as a Power User when connected to the Internet could make the system vulnerable to Trojan horse programs and other security risks.

Users

The Users group is the most secure, because the default permissions allotted to this group do not allow members to modify operating system settings or other users' data.

The Users group provides the most secure environment in which to run programs.

On a volume formatted with NTFS, the default security settings on a newly installed system (but not on an upgraded system) are designed to prevent members of this group from compromising the integrity of the operating system and installed programs.

Users cannot modify system wide registry settings, operating system files, or program files. Users can shut down workstations, but not servers. Users can create local groups, but can manage only the local groups that they created. They can run certified Windows 2000 or Windows XP Professional programs that have been installed or deployed by administrators. Users have Full Control over all of their own data files (%userprofile%) and their own portion of the registry (HKEY_CURRENT_USER).

However, user -level permissions often do not allow the user to successfully run legacy applications. Only the members of the Users group are guaranteed to be able to run Certified for Windows applications. (For more information, see the Certified for Windows Program on the Microsoft Web site. (http://msdn.microsoft.com)

To secure a Windows 2000 or Windows XP Professional system, an administrator should:Make sure that end users are members of the Users group only.

Deploy programs that members of the Users group can run successfully, such as certified Windows 2000 or Windows XP Professional programs.

Users will not be able to run most programs written for versions of Windows prior to Windows 2000, because they did not support file system and registry security (Windows 95 and Windows 98) or shipped with lax default security settings (Windows NT). If you have problems running legacy applications on newly-installed NTFS systems, then do one of the following:

•Install new versions of the applications that are certified for Windows 2000 or Windows XP Professional.

•Move end users from the Users group into the Power Users group.

•Decrease the default security permissions for the Users group. This can be accomplished by using the Compatible security template.

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Backup Operators

Members of the Backup Operators group can back up and restore files on the computer, regardless of any permissions that protect those files. They can also log on to the computer and shut it down, but they cannot change security settings.

Caution!

Backing up and restoring data files and system files requires permissions to read and write those files. The same default permissions granted to Backup Operators that allow them to back up and restore files also make it possible for them to use the group's permissions for other purposes, such as reading another user's files or installing Trojan horse programs. Group Policy settings can be used to create an environment in which Backup Operators only can run a backup program. For more information, see the Microsoft Security page on the Microsoft Web site (http://www.microsoft.com).

Special Groups

Several additional groups are automatically created by Windows 2000 and Windows XP Professional.

When a Windows 2000 system is upgraded to Windows XP Professional, resources with permission entries for the Everyone group (and not explicitly to the Anonymous Logon group) will no longer be available to Anonymous users after the upgrade. In most cases, this is an appropriate restriction on anonymous access. you may need to permit anonymous access in order to support pre-existing applications that require it. If you need to grant access to the Anonymous logon group, you should explicitly add the Anonymous Logon security group and its permissions.

However, in some situations where it might be difficult to determine and modify the permission entries on resources hosted on Windows XP Professional computers, you can change the Network access: Let Everyone permissions apply to anonymous users security setting.

Interactive. This group contains the user who is currently logged on to the computer. During an upgrade to Windows 2000 or Windows XP Professional, members of the Interactive group will also be added to the Power Users group, so that legacy applications will continue to function as they did before the upgrade.

Network. This group contains all users who are currently accessing the system over the network.

Terminal Server User. When Terminal Servers are installed in application serving mode, this group contains any users who are currently logged on to the system using Terminal Server. Any program that a user can run in Windows NT 4.0 will run for a Terminal Server in Windows 2000 or Windows XP Professional.

The default permissions assigned to the group were chosen to enable a Terminal Server to run most legacy programs.

Caution!

Running legacy programs in Windows 2000 or Windows XP Professional requires permission to modify certain system settings. The same default permissions that allow a Terminal Server user to run legacy programs also make it possible for a Terminal Server user to gain additional privileges on the system, even complete administrative control. Applications that are certified for Windows 2000 or Windows XP Professional can run successfully under the secure configuration provided by the Users group. For more information, see the Microsoft Security page on the Microsoft Web site(http://www.microsoft.com).

Local accounts created on the local computer are created without passwords and are added to the Administrators group by default.

If this is a concern, Security Configuration allows you control membership of the Administrators (or any other group) with Restricted Groups policy.

For more information, see Restricted Groups.

When Terminal Server is installed in remote administration mode, users logged on using Terminal Server will not be members of this group.

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For more information on setting up users, please refer to the Windows documentation supplied with your console.

Further information can also be found at:

http://windowsxp.devx.com/articles/fus/default.asp

http://windowsxp.devx.com/articles/usingfustest/default.asp

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Alphabetical Index

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