Dynacord DSP 244 owner manual Compressor

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P A R A M E T E R S

COMPRESSOR

The compressor automatically reduces level peaks above a certain threshold and therefore provides reliable protection against power amplifier clipping and damaging the connected loudspeaker systems.

Parameter

Settings / Value range

Default

 

 

 

Thrsh

0.27V - 8.70V

8.70V

 

 

 

Rat

1/1.0, 1/1.4, 1/2.0, 1/4.0, 1/8.0

1/2.0

 

 

 

Attack

0ms - 99ms

5 ms

 

 

 

Rels

50ms - 999ms

250 ms

 

 

 

 

 

 

The Thrsh parameter (Threshold) defines the level at which the compressor starts operating. Signal levels below this value are not influenced. As soon as levels reach or exceed the threshold value, the signal is compressed according to the set value of the Ratio parameter.

Ratio - Rat - determines the compression ratio - the amount which the incoming signal is compressed. For instance, a ratio of “1/4.0" means that a level change of 4 dB at the input results in a level change of only 1 dB at the output; provided that the input level exceeds the threshold level.

Attack defines the time interval, after which the compressor starts to operate. With short attack settings, the compression starts nearly instantly while with longer attack times, part of the audio signal’s impulse can pass unaltered.

Release -Rels-sets the compressor’s release time, after the signal level has dropped again below the threshold value. When the signal’s level drops below the threshold, the audio signal’s gain is processed to return to its original value. This signal processing follows an exponential curve, so that the volume change is appropriate for the human hearing. When selecting a release value that is too short, the signal level rises too fast, which also results in pumping. On the other hand, too long release times often lead to a dramatic loss in dynamic.

8-12

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Contents DSP Safety Component has to be Replaced with Original Part only For US and Canada onlyContents Introduction DSP 244 FeaturesUnpacking and Warranty IntroductionControls and Connections Controls and ConnectionsFront Panel 15, Compressor indicators Output 1 13, Channel function indicators SUB, LO, MID, HI14, Level meter indicators Output 1 16, Power ON/OFF-switchRear Panel Balanced INPUT/OUTPUT configuration Installation and ConnectionsInstallation and Connections Unbalanced INPUT/OUTPUT configurationFirst Operation Switching the Power onLevel Settings First OperationQuick Start Quick StartDelay Alignment Over SettingsLoudspeaker Equalization Compressor / Limiter Settings Matching the Frequency ResponseConfigurations of the DSP Configurations of the DSPFull Edit N Figurations of the DSP Stereo 2 Way3 Way + Fullrange 3 Way / Mono Sub + Fullrange3 Way / Independent Sub + Fullrange 4 Way2-IN-4 E R a T I O N OperationEditing E R a T I O N Store Programs and Program Names Modifying Factory Preset Programs R a M E T E R S ParametersParameter Access Parameter ACCESS-TABLEDescription of Parameters DefaultParameter LINK-TABLE Master EQ1-5PEQ = 1kHz, Gain = -12dB Master Delay RoutingChannel EQ1-4 R a M E T E R S Hipass X-OVER Lopass X-OVERR a M E T E R S Channel Delay Compressor Limiter LevelT I O N Setting the LCD ContrastEdit Mode Selection Option FunctionsCompressor and Limiter Threshold Unit VU Level Meter Display ModeEdit Protection Celsius Temperature Unit settingsMidi RX / TX Channel settings FahrenheitTo RS232 Send ParametersTo Midi RS-232 to Midi data transmissionNRS 90246 Contact Closure Interface settings PGM U01 NRS 90247 RS-485 Interface SettingsCntct PGM MuteTechnical Specifications SpecificationsPeci F I C a T IO N S Midi General Midi CommandsIDI Midi System Exclusive ImplementationData Command Parser Code Table Retrofitting Instructions Installation instructions NRSRetrofitting Instructions Installation manuals for interface cards Blockdiagramm / Block Diagram Flussdiagramm / Flow Diagram Abmessungen / Dimensions Warranty Garantie
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