Klark Teknik DN9340E, DN9344E specifications Metering

Page 34

Operation: DN9340E

6.6. Metering

Comprehensive audio metering is provided by eight LED bargraph meters:

There are a pair of input meters (labelled “A” and “B” for audio channels A and B, respectively) that show the input level immediately following the input gain control. These can therefore be used as a guide for setting the input gain to match the signal level being sent to the unit. With the input gain control set to 0dB (unity gain) then full-scale on the meter will occur at a signal level of +21dBu, which is the maximum permissible signal level. The input meters incorporate a red ‘clip’ LED that indicates signal clipping both on the actual input to the unit and also after the gain control. This ensures that all possible clip conditions are monitored irrespective of the setting of the gain control.

There are a pair of output meters (labelled “A” and “B” for audio channels A and B, respectively) that show the output level from the unit. Full-scale on the meter indicates maximum output from the unit, which corresponds to +21dBu. The output meters also incorporate a red ‘clip’ LED. This indicates signal clipping within the unit, and is monitored at all internal points where gain can be applied. Thus, if a large amount of gain is added with one section of a parametric EQ, resulting in a clipped signal, but the level is then reduced by a subsequent EQ section, the clip LED will still illuminate to indicate the internal clip condition despite the apparently safe output level. In this situation the input gain should be reduced to provide sufficient headroom for the desired EQ characteristic. Note that because these meters are on the output of the unit, they will show the effect of any delay that has been selected.

There are four meters which show the action of the dual-threshold

dynamic EQ system, one meter for each EQ section on each of the two audio channels A and B. The dynamic EQ meters are calibrated in percentage terms, from 0 to 100. If no dynamic EQ is selected or if the signal is below the ‘low’ threshold, then the meters will show 0% (that is, no LEDs illuminated). Under this condition the dynamic EQ will be using the ‘low’ frequency response settings. If the signal level is above the ‘high’ threshold, the relevant meter will indicate 100% (fully illuminated) showing that the ‘high’ EQ settings are now being applied. If the signal is between the two thresholds, then the EQ will be morphing between the two EQ settings, and the meter indicates the signal level relative to the two thresholds. Note that the effect of the attack and release controls is also indicated on these meters - the height of the bar indicates the actual EQ being applied, so if a slow release is set, for example, you will see the meter drop back slowly following a peak.

24

Page 33 Page 35
Image 34
Page 33 Page 35
Contents DN9340E/DN9344E Page Important Safety Instructions Page Declaration of Conformity Page Contents Setup Menu DN9340E Application Notes Page Installation Considerations Safety WarningAfter Unpacking Page Quick Reference DN9340E Front PanelDN9344E Front Panel Introducing the DN9340E/DN9344E DN9340E & DN9344E Key FeaturesKey Features Host Software VersionsInterface to Midas consoles Remote control operationSpace efficiency Store and Recall ParametersFront Panel DN9340E Controls, Connectors, Indicators DN9340EEQ Access and Displays Soft keys displayBypass, Channel Select, Soft Keys and Alphanumeric Display Selected channel both channels if linked. When aSoft keys Touch Strip, Store and Recall, Home Setup and Data Entry PC Port, Metering and Power Inputs a and B Rear Panel DN9340EMains Word clock InputSignal Flow DN9340E Signal Flow DN9340EHome Operation DN9340EOperation DN9340E Home page sub-menusTouchstrip Operation on the Home Graphic Equalisation Soft Key FunctionsAutomatic features EQ FlatTouchstrip operation with Graphic equalisation GroupingParametric Equalisation Touchstrip operation with Parametric equalisation EQ removeLo Threshold / Level Dynamic EqualisationHi Threshold / Level Touchstrip operation with Dynamic equalisation Time constantsCreate Filter function FiltersFilter Type Left Encoder Centre Encoder Right Encoder Touchstrip operation with Filters Filter settingsFilter remove Metering Clear Down Sequence To access the Set Up menu pages Setup Menu DN9340ESetup Menu DN9340E GeneralComms channel Remote control via a PCTo switch remote communications off To select a slave remote communications channelTo select a slave communications channel Using a DN9340E for master controlTo select a master remote communications channel To remove the unit from the networkTo set a Panel Lock Front Panel lockTo remove the Panel Lock Analogue/Digital Input Select To change the input sourceDigital Output Clock Select Presets lockTo set a Presets lock To select the output clock sourceNaming Pages 7 LCD contrast adjustmentDelay options To enter a nameEthernet Settings Pages 11 Power-up LogoEthernet IP Address Ethernet Subnet Mask Setup To check and edit the Subnet MaskTo store settings Using the DN9340E MemoriesTo recall settings Addresses Remote ControlConnections Data modelOn a DN9340E Setting the master unit on-lineGetting started On a DN9344EOperation To set up the namesSystem naming Copy channel function To set up the assignmentSolo Tracking operation Overview Helix DN9340E/DN9344E unit interconnectionsConnecting the Helix DN9340/DN9344E units in a daisy chain Ethernet Connection Ethernet connection wireless optionEthernet connection standard Configuring the DN9340E for Network Communication Configuring the DN9344E for Network CommunicationSerial Connection Option Connection and Configuration ProcedureSerial connection details Press to step through the Set Up pages Controls, Connectors, Indicators DN9344EAlphanumeric displays, SETUP, Metering and Power Power Switch Power on Power on indication Power indicationIndicators, Up and Down Buttons, PC Port and Scribble Strips Indicators1B, 2A and 2B Rear Panel DN9344EMains inlet socket InterfaceSignal Flow DN9344E Signal Flow DN9344EOperation DN9344E Operation DN9344ERemote Comms channels To select a remote communications channel To enable the Contact Closure Relay mode To disable remote communications and relay operationTo change the settings for Inputs 1A and 1B PasswordTo set a password Analogue/Digital Input Select Pages 3To change the settings for Output Digital Output Clock Select Pages 5To change the IP address Ethernet SettingsSubnet Mask To change the Subnet MaskApplication Notes Dynamic EQApplication Notes Application Notes What do we mean by all these Q types? Proportional Q Constant QSymmetrical Q What is AES/EBU? Technical Specification DN9340E 17.1. DN9340EPower Requirements Technical Specification DN9344E 17.2. DN9344ERelay Socket Pin D-type rear Power Pin IEC Battery Service InformationReplacement
Related manuals
Manual 65 pages 57.17 Kb
Top Page Image Contents