dbx Pro QUANTUM user manual Detailed Parameters, Multiband Compression

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Section 4 Detailed Parameters

QUANTUM

4.1 Multiband Compression

Within the multiband compressor menu on the QUANTUM the following parameters are user adjustable on all setups.

Compressor LOC/On/Off

Local (per band control) or global on and off.

Band 1 to 4 On/Off

Turns on or off each independent band

OverEasy® 1-10 (per band or global)

The point when the QUANTUM (or any compressor) starts to compress is the "knee." When the QUANTUM starts to reduce the level of a signal abruptly right as it passes over the threshold this is called "hard knee" compression. OverEasy® (soft knee as it is sometimes called) is when the level of the signal is compressed gradually. OverEasy® compression starts to compress before the level of the signal reaches the threshold and reaches full compression after the vol- ume has gone above the threshold. This OverEasy® compression by its very nature sounds much smoother and more natural and will be used for most applications. When it is gentle (nat- ural sounding or light) compression that you are looking for, the QUANTUM has what we call VariKnee™. VariKnee™ gives you ten levels of OverEasy® compression to choose from (1 being almost hard knee and 10 being the most OverEasy®). This lets you choose the exact knee that is needed for the dynamic effect you are looking for.

Fig. 4.1

Auto LOC/On/Off and Auto On/Off

Auto can be turned on/off per band or globally. When Auto mode is on, the QUANTUM auto- matically sets the Attack, Hold, and Release times for the signal. The auto mode constantly adjusts these parameters in real time for optimum performance from the unit.

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30	QUANTUM User Manual

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Contents Quantum Important Safety Instructions Declaration Conformity Table of Contents QuantumFigure Index Page Intro What is QUANTUM? IntroductionService Contact Info Introduction What is QUANTUM?Warranty Quantum Section Rear Panel Connections Getting StartedFront Panel Getting Started Section Front Panel Signal Path Quantum WizardQuantum is a Mastering Processor that has many features Getting Started Section Mastering and the QuantumQuantum Navigation Navigation Multiband CompressorNavigating the Broadband Compressor Navigation Section Broadband CompressorNavigating the Multiband Gate Multiband GateNavigating the Broadband Gate Navigation Section Broadband GateNavigating the Multiband Limiter Multiband LimiterNavigating theBroadband Limiter Navigation Section Broadband LimiterNavigating the Multiband EQ/XOver EQ/XOverNavigating the Broadband EQ/SEQ Navigation Section EQ/SEQNavigating Norm/Output Norm/OutputNavigating Other Navigation Section OtherNavigating Utility UtilitySection Software Operations FX ChainsSoftware Operations Section FX Chains Chain Type Stereo BroadbandChain Type Mono Mono Input CH1 or CH2Software Operations Section Programs/Setups Program Pop MasterSaving a Setup SectionSoftware Operations Section Saving a Setup Saving a ProgramReplace Old Store NewBypass Function MetersAnalog Meters TSE Level Meters Software Operations Section Meters Digital Meters Meter Options CompressorMonitor Outputs LimiterGate / Expander De-EsserDetailed Detailed Parameters Multiband CompressionDetailed Parameters Section Multiband Compression Broadband Compression Detailed Parameters Section Broadband Compression Ratio 11.0 to 115 per band or global Attack 0.1 to 200 m Sec per band or globalRelease 360 to 5 dB / Sec per band or global Max ATT 0 to Inf. dB per band or globalDetailed Parameters Section Broadband Gate Multiband LimitingBroadband Limiting Attack .01 to 200 m Sec per band or globalLimiter On/Off Type PkStop+/RMSDetailed Parameters Section Broadband Limiting EQ On/OffPOS Pre/Post Type Const Q / Adapt QXOver Detailed Parameters Section SEQ Schain EQ On/OffSEQ1 FC 20.0 Hz to 20.0 kHz SEQ2, 3, 4 FC 20.0 Hz to 20.0 kHzStereo Adjust Type13 TCM Detailed Parameters Section AmbienceDe-Esser Normalization OutputShaping S1 or S2 Detailed Parameters Section OutputDither Out All or Digital Page Utilities Utilities Input OutputDigital Input Controls Utilities Section OutputMidi CC Map Setup Sysex Data Midi ChannelsMidi Program Changes Sysex DumpA/D Calibrate Utilities Section Setup Sysex DataMisc Page Guide Application Guide Analog MasteringHardware SoftwareApplication Guide Section Digital Mastering DAW to DAT Application Guide Section Analog Tracking 586Digital Tracking Application Guide Section Analog Mixing Digital Mixing Application Guide Section Analog to Digital Converter Sample Rate Converter QUANTUMAppendix Hard & Soft Resets Change Default Startup ProgramAppendix a Miscellaneous Information Front Panel LockoutBy Roger Johnson TypeIV White Paper Appendix BAppendix B TypeIV White Paper Converted Level vs. Input LevelType Amplitude Time Clip Level High-Frequency Information Completely Lost Appendix C Midi Clock Info Clock ModesQuantum Sync Input Fig. C.1Appendix C Miscellaneous Clock Info Fig. C.2Procedures Request One Setup 02hReceive One Setup 43h Sysex Definitions Appendix DAppendix D Sysex Definitions Reset Device 21h Sysex Setup Dump SampleProcedure Setup Dump Version Setup Type and Setup NumberAppendix E Midi CC Tables Midi CC MultiBand ChainsMidi CC Tables Appendix E Midi CC MultiBand Chains Midi CC Stereo Non-MultiBandMidi CC Dual Mono Chains Midi CC Stereo Non-MultibandMidi CC Tables Appendix E Midi CC Dual Mono Chains Appendix F Factory Presets Factory ProgramsStereo Factory SetupsMono Appendix G Specifications SpecificationsAppendix H Appendix H Quantum Harman International Company