Lexicon 960L owner manual Size, Slope, Spin, Spread, Steering, Wander

Page 61

Using The Reverb ProgramLexicon, Inc.

Parameters Used in the 960L Algorithms, Continued

Size

Size is a scale factor that alters the length of most of the reverb’s delay elements. This control is

 

calibrated in units that approximate the longest dimension of the reverberant "space" in meters.

 

In practice, perception of room size is also strongly determined by Shape. Size strongly affects

 

the overall timbre of the reverberation. Values less than 25 have a noticeable "small room"

 

coloration. For the most neutral sound with the programs that have Shape and Spread controls,

 

set Size to about 30M, and the adjust the apparent size with Shape and Spread.

Slope

Slope (Reverse algorithm only) multiplies low-frequency energy and is similar in its effect to Bass

 

Multiply.

Spin

Spin and Wander introduce small random variations within the reverberation, continuously

 

altering the reverb timbre to create a more natural sound. Spin controls the relative rate of

 

motion and the speed with which changes occur, expressed in arbitrary units. Wander controls

 

the amount of change. At extreme settings, these parameters can introduce slight wobbles that

 

are audible in critical material such as classical guitar or piano.

Spread

Spread works with Shape to control the profile of initial reverberant-energy growth. Shape sets

 

the contour of the energy growth and Spread stretches or compresses this contour in time to

 

make reflections closer together or further apart. With complex material, it may be advisable to

 

use a moderately high value for shape and a moderately low one for spread to create a bit of

 

space around the original signal. Large values of Spread and Shape can create "inverse" effects

 

(see note under Reverse algorithm). See also Contour.

Steering

Steering (Stereo algorithms only) controls a matrix encoder that affects only the reverberant

 

tails. This provides a reverberation that will decode into surround without strong early

 

components that might trigger phase correction devices. Steering is not continuously variable,

 

but offers the following choices:

•Mono -- Mono sum tail.

•Narrow -- between mono and stereo.

•Stereo

•Wide -- Expanded Stereo.

•Lex -- LexiconLogic™ , a matrix that includes separate left and right surround signals when used with a Lexicon Logic decoder, but is also compatible other commercial matrix codings and with stereo and mono.

•Matrix -- 4-2-4 encoding.

Wander

Wander and Spin introduce small random variations within the reverberation, continuously

 

altering the reverb timbre to create a more natural sound. Spin controls the relative rate of

 

motion and the speed with which changes occur, expressed in arbitrary units. Wander controls

 

the amount of change. At extreme settings, these parameters can introduce slight pitch wobbles

 

that are audible in critical material such as classical guitar or piano.

5-14

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Contents 960L. Digital Effects System Important Safety Instructions Table Of Contents Table Of Contents Title of Section IntroductionMainframe Rear Panel DescriptionAbout the 960L Unpacking the 960LRemote-Control Connectors Clock Card Midi Connectors Five-pin DIN femaleMains Power Switch IEC Power ConnectorFront Panel Standby Switch and IndicatorFloppy Drive ThumbscrewsDSP-Card Slots Behind the Front PanelCPU Card Mounting InstallationVentilation LocationMidi Connections Digital Audio ConnectionsWordclock Connections Navigating Typical Display Screens LARC2 RemoteAbout the LARC2 LARC2 RemoteUnpacking the Larc LARC2 Control Surface LARC2 Control SurfaceLARC2 Connections Getting What You WantA typical display screen Navigating Typical Display ScreensAbout the Faders and Joystick Mode Faders JoystickFine Adjust Audio IndicatorsLexicon Button AN Overview of the Controls Basic OperationAn Overview of the Controls Basic OperationQuick Guide to Operation Setup Control Mode960L Owner’s MaunalBasic Operations Quick Guide to Operation Program Loading Machine SelectionStoring Your Edits Editing a Program or RegisterName screen Info screens are similar Operations in Detail Control Mode CLOCKS, ConfigurationLoading Programs Loading Programs and RegistersAlternative Loading Techniques Loading RegistersProgramming Machines Wordclock Control Mode Clocks, Configuration, and System ScreensLocked and unlocked wordclock Input, Output, and Machine Configuration960L Owner’s Maunal Operations in Detail 44.1/48kHz Dual machines 5-in and 2-in Output Assignment Left Right Center Unused Surround Surround System Screen Analog and Digital I/OEditing Fine AdjustEditing Algorithms Editing With the FadersQuick Comparisons via the Lexicon Button Editing with the JoystickInput Panning Editing Inputs and OutputsOutput Panning 960L Surround Panning Rules Setting LevelsAvoiding Overload V-Page and Parameter Reassignment Using the Edit Algorithm ScreenFrom the Edit Algorithm, Inputs, Outputs Options screen 22 Edit V-Page screen programming the joystick Storing Storing and Labeling Your EditsNaming and Annotating Organizing Your Registers 25 a Register Info Options EnabledUsing the Floppy Drive Machine ModeCD-ROM Edit Tools for RegistersUsing the Reverb Programs Reverberation and Reality Using the Reverb ProgramsUsing The Reverb Program Lexicon, Inc Reverberation and Reality Msec Sound in Space a Short History of Stereo and Surround Random Hall AlgorithmsChamber Surround HallPlate & Surround Plate Ambience & Surround AmbienceReverse & Surround Reverse Ambient ChamberInverse Parameters Used in the 960L Algorithms Using The Reverb ProgramLexicon, Inc FbckR FbckLFbckLF FbckLSLvRR LvLLLvLR LvRL LvLFLFRearRvb RearRollRShape RSpreadSlope SizeSpin SpreadMidi Midi Channel Allocation NomenclatureChannel Usage Description Bank and Program Mapping Card ConfigurationBank Description Program # DescriptionIncoming Inquiry Midi Byte Description Midi Sysex960Ls response Midi Implementation Chart Specifications Specifications 48K Rack Units Connector96K Factory ProgramsLARC2 User Interface Appendix Halls Appendix Program DescriptionsAppendix B1 P4 B3 P4 B6 P2 B7 P2 B9 P9 B11 P5 Empty Mini Chamber Similar to Snare Chamber, but even smaller Lg Brite Room Random Hall Simply large and bright Echo Plate Like Flat Plate, but with echoes Stereo Bank Kitchen Chamber Can you find your disposal sound effect?
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