Lexicon PCM 81 - REV User Manual Download Page 108

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3-47

The Algorithms and Their Parameters

Summary of Contents for PCM 81 - REV

Page 1: ...User Guide Digital Effects Processor PCM 81...

Page 2: ...e PCM 81 save all packing materials in case you ever need to ship the unit Thoroughly inspect the PCM 81 and packing materials for signs of damage Report any shipment damage to the carrier at once rep...

Page 3: ...User Guide Digital Effects Processor PCM 81...

Page 4: ...amaan s hk iskuvaaran Norsk Viktig informasjon om sikkerhet Ta vare p denne veiledningen for senere bruk F lg alle anvisningene og advarslene som er angitt p apparatet Apparatet skal alltid anvendes m...

Page 5: ...S ret Importantes Gardez ces instructions pour r ference future Observez toutes les instructions et tous les avertissements marqu s sur l appareil Branchez uniquements sur un r seau de tension indiqu...

Page 6: ...tion 2 1 Navigating a Matrix 2 2 Info 2 3 Control Mode 2 4 Program and Register Banks 2 17 Tempo Mode 2 19 Editing an Effect 2 22 The Soft Knob 2 22 The Soft Row 2 23 Compare 2 24 Bypass 2 24 Store op...

Page 7: ...Glide FX 3 22 Levels 3 23 Modulation 3 24 Panning 3 28 Patching 3 29 Pitch 3 30 Resonance 3 34 Reverb Design 3 34 Reverb Time 3 36 The Pitch Algorithms 3 38 About the Pitch Algorithms 3 38 About Pitc...

Page 8: ...nstrument Shift Harmony 3 0 3 9 4 23 Percussion Tempo 4 0 4 9 4 24 Program Bank 5 4 24 Sci Fi FX 0 0 0 9 4 24 Pitch Delay 1 0 1 9 4 25 Pitch Sequences 2 0 2 9 4 26 Pads Drones 3 0 3 7 4 27 Utility Pro...

Page 9: ...leshooting Low Voltage 6 2 Overheating 6 2 Common MIDI Problems 6 2 Operational Problems 6 3 Power On Behavior 6 3 Reinitialization 6 3 Restoring Factory Default Settings 6 4 7 Specifications Contents...

Page 10: ...combinea specifictypeof reverberationwith a 4 voice general purpose stereo effect toolbox as well as additional post processing for the reverb The 6 Voice algorithms Glide Hall Chorus Rvb M Band Rvb R...

Page 11: ...et of Modulation and Patching parameters create your own ADJUST knob patch and assign your own Go mode parameters AuniquePatchingandModulation systemprovidesunprecedentedcontrolover your effects with...

Page 12: ...1 1 Product Overview 1 Product Overview Block Diagram...

Page 13: ...he active row POWER On Off Memory Card Slotfor optionalpreset ROM or register RAM cards Press Eject buttontoremovecard Register Banks Enables selection of user memory IfaRAM card is loaded into the Me...

Page 14: ...unbalanced to the input stages Out position provides 0dB of gain balanced Balanced Inputs Combined 3 pole XLR and 1 4 jacks elec tronically balanced Input impedance is 50k unbalanced and 100k balance...

Page 15: ...output to all channels wired consistently Out of phase wiring can produce audible effects Digital Audio S PDIF CP 340 Type II Consumer Digital Audio connections require 75 coaxial cable suited for dig...

Page 16: ...p high Audio Input and Output MIDI In 5 pin DIN Standard MIDI Interface MIDI Out MIDI Thru Footswitch Foot Controller One 1 4 inch T R S phone jack is provided for 2 momentary footswitches Another 1 4...

Page 17: ...avoid overload Proper setting of signal level into the digital signal processor to optimize noise Headroom Display The headroom display provides both headroom and overload information from a variety...

Page 18: ...gital input level control Until validdigitalaudio isconnected the DigInLvlcontrol willremain muted 4 Turn SELECT to 0 1 Analog In Lvl and turn ADJUST to display 100 5 Adjust the front panel INPUT knob...

Page 19: ...strips panned full left and right ratherthan totheeffects returns Thisallowsthe greatest flexibility inrouting and equalization In this configuration the console controls are used to set the amount of...

Page 20: ...a card allowing you to transport not only your effects but complete PCM 81 environ ments to another PCM 81 Cards also provide storage for additional program maps and effect chains See Control Mode Sto...

Page 21: ...Lexicon PCM 81 User Guide 1 10...

Page 22: ...81 Press Program Banks repeatedly to access six banks of factory preset programs Each bank contains 50 programs Press Register Banks to access a bank of 50 memory locations called registers where you...

Page 23: ...ay An asterisk in the display indicates that Load is active and depending on the mode will load effects or display additional parameters when pressed Go or Pro The PCM 81 offers a choice between two l...

Page 24: ...ction is taken on release Displays the current function assigned to the Up button and the ADJUST knob Displays the current function assigned to the Down button and the SELECT knob Displays the current...

Page 25: ...ence or it can reference an external clock source from the rear panel S PDIF or AES jacks Use ADJUST to select Ext XLR AES Ext Coax S PDIF Int 48kHz or Int 44 1kHz When either Internal rate is selecte...

Page 26: ...and format information along with the status of the Emphasis bit s in the incoming audio signal If the PCM 81 has lost lock the display message will indicate No Lock and parenthetically show the inte...

Page 27: ...lock was last set to Ext To clear the Error Log reselect Ext from the Control Mode Word Clock display This will cause the PCM 81 to attempt to lock to the current external source and will reset the Er...

Page 28: ...he fact that the signal is muted Audio Dig In Lvl 0 2 30 Muted If you select the Dig In Lvl parameter while there is a lock range or non audio error the display will continue to show the level you hav...

Page 29: ...up in Go mode with the first preset P0 0 0 loaded Press Edit to display the first available parameter in the Soft Row If you want access to the full parameter matrix for any effect including the Soft...

Page 30: ...n about working with the tempo parameters see Tempo Mode later in this chapter 1 3 Bypass Mode Bypass Src This control alows you to determine the behavior of the PCM 81 when the front panel Bypass but...

Page 31: ...er this control determines when the controller will take control of the parameter If Immediate is selected stored parameter values will jump to the current controller position when the effect is loade...

Page 32: ...rs will be labeled C0 C1 C2 etc 2 Press Load to move the asterisk to Dst Card Bank Copy 2 0 Src P0 Dst R Now use ADJUST to select the destination of your copy Selecting a register bank here will cause...

Page 33: ...er character Press Store to execute The display will ask Are you sure Press STORE Press Store again to complete the operation Press any front panel button to cancel Format and name memory card Card Na...

Page 34: ...Meg 47 Off All Program Change and Bank select messages are ignored Map Program Change 0 127 can be mapped to any PCM 81 effect in any internal or card bank Two 128 element maps are stored internally...

Page 35: ...DI Controller message to transmit 3 6 Int Clock You can choose to have the PCM 81 transmit MIDI Clock at the current tempo rate by setting this control to On and Tempo mode Source 0 2 to Internal If t...

Page 36: ...Clock Off 3 7 SysEx On Device ID 0 3 9 Dump Speed Slow Tempo Mode Matrix Location System Parameter Default Setting Tempo 0 2 Source Internal Tap 1 3 Display On 4 1 Load This control allows you to loa...

Page 37: ...To change assignments set Pgm with ADJUST press Load to move the to Chain and set it with ADJUST You cannot assign more than one chain MIDI Chain Pgm Assign Pgm 3 Chain 3 Chain 0 9 Use SELECT to choo...

Page 38: ...on the PCM 81 will load whatever effect was running when it was last turned off When shipped from the factory the first effect in the first Program Bank P0 0 0 Prime Blue is loaded The Bank ID P0 P1...

Page 39: ...trol Mode Displayed effect names will be preceded by an indicating that they can be loaded by pressing Load The Load LED will light to indicate that the load function is available To find out at any t...

Page 40: ...rate can be easily changed in a variety of useful ways Tempo Rate can be set internally orvia MIDI If TempoSource is set toInternal you can dial in any tempo from 40 400 BPM at location 0 0 in the Tem...

Page 41: ...he new rate Note that fractional tempos can be tapped in but are not available via ADJUST The display will always show the nearest whole number value 0 1 BeatValue Tempo is expressed in BPM This contr...

Page 42: ...Tap Source allows you to assign the Tap function to any of the PCM 81 s Internal MIDI or MIDI controllers as listed under Patching Tap Level allows you to set the level at which the Tap function is tr...

Page 43: ...e assigned to the ADJUST patch and the current value of the patch Continue turning ADJUST to change the value of the patch along its entire range The range of ADJUST knob control can be limited in Con...

Page 44: ...mode with the first preset P0 0 0Prime Blue loaded Press Edit to displaythe Soft Rowof parameters which havebeendesignedforthispreset Inthisexample 10softrow parametershave been assigned The name of e...

Page 45: ...values with patched sources other than ADJUST will not light the LED Bypass If you press Compare while the light is on a message will be displayed stored effect active Compare is on and you will hear...

Page 46: ...arch for available registers starting at 0 0 in the Internal Register Bank Storing an Effect R 0 0 available Name Prime Blue An asterisk is positioned in front of the display label which is available...

Page 47: ...ll through the available register banks Press Load again to move the asterisk to the register matrix location R 0 0 available ADJUST Efx Rvb X When the asterisk is positioned in front of the register...

Page 48: ...rix will contain all of the available level controls for the effect s delay voices As far as possible rows with similar controls will always appear in the same position in the matrix and within each r...

Page 49: ...ned to this Soft Row In this preset and in every preset we have designed the Soft Row by assigning the parameters in numerical order so that parameters from the Controls row are assigned in order to t...

Page 50: ...any effect parameter including one s you have already assigned to a Soft Row position 5 When you have arranged the Soft Row assignments as you want them press Edit to exit Soft Row Assign and return t...

Page 51: ...pedal or footswitch Some Sources generate output based on aspects of physical performance such as how loud how fast or how hard you play The PCM 81 allows you to choose from a selection of Sources as...

Page 52: ...007 Volume 008 Balance 009 Ctl 9 010 Pan 011 Xpression 012 Effect 1 013 Effect 2 014 Ctl 14 015 Ctl 15 016 General 1 017 General 2 018 General 3 019 General 4 020 Ctl 20 031 Ctl 31 PCM 81 interprets 0...

Page 53: ...o be ineffectuntil thecontrolleris moved Itis therefore a goodideato setasensible value to the parameter in the Edit matrix Assigning a Destination Once you have selected a Source press Load and the d...

Page 54: ...xciting new level of dynamic control When creating patches there are situations in which you will want to leave the Patch row to adjust parameters To make this convenient a Jump command is available J...

Page 55: ...The following examples illustrate how to create a patch use the patch jump features modify the default patch values and add an additional pivot point to the example patch values Load program P0 0 1 E...

Page 56: ...show the default Destination value setting 360 MONO This is the value assigned to FX Width when the LFO is at its minimum value 000 Patch 1 Values 000 360 MONO Turn ADJUST one click counterclockwise t...

Page 57: ...r of the display is a patch source indicator This indicator appears whenever a modulator such as the LFO in this example has been assigned as a patch Source in the effect being edited Turn ADJUST to c...

Page 58: ...terisk indicates thatthe Source value will be altered when you turn ADJUST With the Destination value selected turn ADJUST clockwise to set the value to 0 Patch 1 Values 000 0 MONO Next we ll want to...

Page 59: ...ss Edit to jump directly to the FX Width parameter in the Controls Row Controls FX Width 0 5 0 90 MONO Patch Destination Indicator The FX Width value will be changing from 0 to 90 and back again The d...

Page 60: ...twice to display the patch Destination then pressing Edit to jump back to the Destination parameter to watch its value change If the is not at the left of the Source value press Load three times to mo...

Page 61: ...alue for the parameter Pedal and ADJUST for example could each have a maximum value of 50 or they could be assigned values of 25 and 75 60 and 40 etc When the sum of multiple patched parameter Destina...

Page 62: ...parameter descriptions organized alphabetically by matrix row name Within each matrix row parameters are organized as far as possible in the sequence in which they appear in the row The Pitch algorit...

Page 63: ...ually adjustable level delay feedback and pan controls as well as master controls for all of the voices These algorithms can be used to create a wide variety of stereo delay and modulation effects in...

Page 64: ...ulates a real concert hall The reverberation is very clean and designed to remain behind the direct sound adding ambience but leaving the source unchanged This effect has a relatively low initial echo...

Page 65: ...3 4 PCM 81 User Guide The Plate algorithm mimics the sound of metal plates with high initial diffusion and a relatively bright sound This makes them a good choice for enhancing any type of percussion...

Page 66: ...e sound decays The initial diffusion is similar to the Concert Hall algorithm but the sense of space and size is much less obvious This characteristic along with the low color in the decay tail makes...

Page 67: ...ime interval When the time interval is up the reverberation cuts off abruptly The resulting effect is similar to a gate but is not at all dependent on the level or complexity of the input signal Slope...

Page 68: ...iteparameter Whenthisparameteristurnedon theinputtothereverberator ramps off Note that this still allows the Reverb Shell to be utilized With Infinite on the reverb tail remains constant creating stra...

Page 69: ...ach reverb is coupled with a unique 6 voice stereo effect gliding delays 6 voice chorus multi band EQ and two 6 voice resonators Voices 1 3 are connected to input audio panned to the left Voices 4 6 a...

Page 70: ...ay voices Each voice has its own level feedback delay cross feedback and pan parameters The output of these delay voices is fed into a Concert Hall reverb algorithm Glide Hall is useful for creating s...

Page 71: ...elay boxes Each voice has its own independently adjustable chorus depth and rate level control delay time feedback and panning control The 6 voice chorus is in parallel with a plate algorithm providin...

Page 72: ...3 11 The Algorithms and Their Parameters Chorus Rvb cont d...

Page 73: ...hamber effect providing independent stereo effects Note that the Diffusion parameter Rvb Design 2 1 is shared by both the multi band and reverb effects Note also that in this particular algorithm the...

Page 74: ...3 13 The Algorithms and Their Parameters M Band Rvb cont d...

Page 75: ...or is then fed into a stereo plate reverb effect The two algorithms differ in the way pitches are assigned to the resonators In Res1 Plate pitches are assigned to the six voices chromatically in a rou...

Page 76: ...3 15 The Algorithms and Their Parameters Res2 Plate The Resonant Chord Algorithms Res1 Plate and Res2 Plate cont d Res1 Plate...

Page 77: ...rus Rvb algorithm Row 5 provides parameters which provide rate and depth controls for each of the six chorus voices as well as master rate and depth controls MstDepth and MstRate TwoMaster Chorusparam...

Page 78: ...d dry signal into the effects The range of these parameters is from Full 0dB Phase Normal to 85dB Phase Normal Off 85dB Phase Inverted to Full 0dB Phase Inverted InPan L and InPan R control the locati...

Page 79: ...tereo 180 MONO INV Phase Inverted Mono 225 R L INV Phase Inverted R L Stereo 270 L R R L L R R L surround 315 STEREO Phase Normal L R Stereo 360 MONO Phase Normal Mono The large and duplicated range o...

Page 80: ...e delays to take a minute or more allowing subtle changes in delay times and echoes with no noticeable pitch shifting A glide response of 100 is ultrafast causing high speed pitch shift and even chirp...

Page 81: ...live can produceavarietyofpitchshift andflangeeffects Delaytimescan alsobetempo modulated Delay Time cont d You can set and display delay val ues in units of time or with tempo values Press Upand Temp...

Page 82: ...input The range of these parameters is from 100 down to 1 Phase Normal feedback 0 Off 1 up to 100 Phase Inverted feedback In the Glide Hall algorithm the Feedback row provides both Feedback and Cross...

Page 83: ...In the Glide Hall algorithm Row 3 contains level delay and feedback param eters for a pair of stereo gliding delays that precede the 6 voice delay Gld Lvl Gld Lvl controls the stereo output level fro...

Page 84: ...s any components that are close in pitch to the resonator tunings In general this control should be set to 0dB or less The Mstr Fbk control allows the feedback levels for all voices to be scaled over...

Page 85: ...es the output of the LFO from 0 to 100 Rate sets the speed 0 25Hz at which the LFO cycles It can be set in time values such as 1 5Hz or in tempo values such as 3 2 cycles per beat Simultaneously press...

Page 86: ...hot Once T Lvl is reached the envelope will go through its entire attack cycle Once the attack cycle is completed if Source value is below T Lvl the envelope will immediately fall at the specified Rel...

Page 87: ...shold values The latch works as follows Modulation cont d There is no output from the latch until the Src value falls within the range defined by the settings of High and Low While the source value is...

Page 88: ...om on to off is instantaneous i e the switch output resembles a pulse wave When Ramp is selected the transition from on to off is continu ous i e theswitchoutput resembles atriangleor sawtooth wave Of...

Page 89: ...oices as well as a master panning parameter for all voices Master The Pan Master provides simultaneous control over the panning of all voices in the effect The range of the Pan Master is 50L full left...

Page 90: ...evel of dynamic control See Chapter 2 for a complete description of the Patching System Patching Internal LFO Sine Cosine Square Sawtooth Pulse Triangle Env L Env R AR Env Latch Sw 1 Sw 2 Sw 1 2 Mono...

Page 91: ...nators An example might be driving this parameter with a slow LFO to achieve an effect something like strumming the strings of an open piano Tuning This parameter allows you to tune the A440 reference...

Page 92: ...onator to ring out Setting the value to 2 will permit Voices 1 and 2 to ring out A value of 6 uses all the voice resonators A handy feature of this parameter is the ability to mute resonators For exam...

Page 93: ...e the interval pitch then shift the interval pitch down a half step Shift Up Take the input pitch assign round it down a half step to an in key pitch calculate the interval pitch then shift the interv...

Page 94: ...F4 and Voice 3 at A4 Standard chord in the key based on the supertonic 3 Pitch Assign E4 Voice 1 will resonate at E4 Voice 2 at G4 and Voice 3 at B4 Standard chord in the key based on the median 4 Pit...

Page 95: ...fect Size Size sets the rate of build up of diffusion after the initial period which is controlled by Diffusion The Size control changes a reverb sound from very large to very small Generally youshoul...

Page 96: ...tener s perspective from the front to the rear of the hall Spin Spin affects the movement of the reverberation tail The object of Spin is to continuously alter the timbre of the reverberant sound This...

Page 97: ...om its initial level to a quieter one before cutoff The lower the slope the more pronounced the dropoff Mid Slope is similar to Low Slope but applies to middle and high frequencies The actual frequenc...

Page 98: ...t Mix In the 4 Voice Algorithms this parameter controls the mix of the reverb audio with the post delayed reverb audio 0 100 Pst Dly L R In the 4 Voice Algorithms these parameters control the time of...

Page 99: ...fferentstereopitchshiftblocks Eachalgorithm also has the full set of modulation and patch features of the PCM 81 4 Voice and 6 Voice algorithms Configuration and routing control is provided by a dedic...

Page 100: ...e optimal points for splicing As the PCM 81 Pitch algorithms gives you significant control over these operations you may find it helpful to keep in mind some of the other factors which can affect pitc...

Page 101: ...rs with a final Mix control allowing control over the amount of reverb in the processed sound Quad Hall is designed for creating pitch effects and is an obvious choice for creating sequences of notes...

Page 102: ...3 41 The Algorithms and Their Parameters...

Page 103: ...or the algorithms Descriptions of the controls common to all of these algorithms is presented in following section Using the Submixer This algorithm includes a dual pitch shifter combined with the Cha...

Page 104: ...he sound decays The initial diffusion is similar to the Concert Hall algorithm but the sense of space and size is much less obvious This characteristic along with the low color in the decay tail makes...

Page 105: ...ols forpitch level delay pan feedback and cross feedback The pitch of each voice is adjustable upordownovera3octaverangewith aresolutionof1cent Maximumdelaytime for each voice is 1 250 seconds Plate D...

Page 106: ...3 45 The Algorithms and Their Parameters...

Page 107: ...delay time for each voice is 1 250 seconds Inverse reverb allows you to vary the slope of the initial portion of the reverb envelope Theslopecan decay remainlevel orrise overavariabletimeinterval Whe...

Page 108: ...3 47 The Algorithms and Their Parameters...

Page 109: ...verb Stereo Chmb Stereo Shifter Chamber The Chamber reverb produces an even relatively dimensionless reverbera tion with little change in color as the sound decays The initial diffusion is similar to...

Page 110: ...ack speed must be increased by 20 The spot now has the correct run length but increasing the speed created an upward pitch shift of 386 cents Run the shifted audio through the VSO Chmb algorithm Set t...

Page 111: ...as the sound decays The initial diffusion is similar to the Concert Hall algorithm but the sense of space and size is much less obvious This characteristic along with the low color in the decay tail...

Page 112: ...t matches the pitch of the lowest note in the input material If you are pitch shifting polyphonic input material you may get better results by setting the value lower than the lowest note in the input...

Page 113: ...ngle note sources shift best When shifting single notes Low Pitch should be set at or below the lowest pitch in the input material Whenshiftingchordsorfullbandwidthmaterial firstsettheamountofshift If...

Page 114: ...gorithmswhichhave a Submixer incorporated into each algorithm This Submixer lets you arrange any combination of reverb and effects blocks in any configuration simply by changing the three main Submixe...

Page 115: ...left FX In L to right Rvb In R to right FX In Mono 150 L R to left Rvb In L R to left FX In L R to right Rvb In L R to right FX In L FX R Rvb 200 R to left Rvb In L to left FX In R to right Rvb In L t...

Page 116: ...d with text instead of numbers Routing Value Effects Routing Parallel 0 Rvb and FX are parallel Rvb into FX 100 Rvb outputs into FX inputs series 1 Parallel 200 Rvb and FX are parallel FX into Rvb 300...

Page 117: ...ries 2 Submixer Returns 1 1 0 Stereo Submixer Sends 1 0 150 Mono Submixer Routing 1 2 100 Rvb into FX Submixer Returns 1 1 0 Stereo Submixer Sends 1 0 0 Stereo Submixer Routing 1 2 300 FX into Rvb A m...

Page 118: ...is sent to the main left and right outputs Mono In Stereo Out Series 2 The Rvb and FX blocks process the left and right inputs independently The stereo outputs of both the Rvb and FX blocks are combin...

Page 119: ...dependently process a mono mix of the left and right inputs The stereo outputs of both the Rvb and FX blocks are combined at the main outputs Mono In Stereo Out Parallel Submixer Returns 1 1 0 Stereo...

Page 120: ...as a mono signal and the FX block processes only the right input as a mono signal The stereo outputs of both the Rvb and FX blocks are combined at the main outputs Dual Mono In Stereo Out Submixer Re...

Page 121: ...lock processes only the right input as a mono signal A mono mix of the Rvb block output is sent to the left main output A mono mix of the FX output is sent to the right main output Dual Mono In Mono O...

Page 122: ...lock controls are also found in the Submixer row of each parameter matrix Press Load Q to toggle between Rvb and FX parameters These parameters are described below in the order in which they appear in...

Page 123: ...r the stereo image of material feeding the two effect blocks RvbHiCut FX HiCut These parameters provide independent 6dB per octave stereo high cut filters on the outputs of the Rvb and FX blocks RvbLo...

Page 124: ...of pitch correction The first is to patch the Correct parameter to a switch or to the ADJUST knob the second is to use a MIDI keyboard to control correction The patch method is preferable for fine tun...

Page 125: ...und decays The initial diffusion is similar to the Concert Hall algorithm but the sense of space and size is much less obvious This characteristic along with the low color in the decay tail makes Cham...

Page 126: ...is parameter lets you control the amount of off pitch correction 0 100 applied When set to 0 no correction is applied When set to 100 notes are shifted as close as possible to the frequency of the det...

Page 127: ...ncy for the pitch A The range is from 410 0 470 0Hz The standard reference frequency is 440 0Hz Splice This parameter allows you to change the amount of time used to crossfade the splices that occur w...

Page 128: ...UST the display will show the name assigned to ADJUST as well as the patch value Continue turning ADJUST to alter the patch value along its available range The program banks are organized as follows M...

Page 129: ...DJUST controls the combination of delays and chorus with reverb 0 5 Chorus Plate ADJUST KorusMix 0 100 Combination of smooth rolling delays in the reverb shell combined with a more aggres sively modul...

Page 130: ...ST Ekos Beat 1 24 Plate reverb combined with independent stereo delays The delay voices are diffused and modulated The echoes are rhythmic set the tempo with Tap or MIDI clocks Use ADJUST to set the n...

Page 131: ...A dual rotor speaker cabinet with a very wide stereo spin and a touch of ambience Use ADJUSTtocontrolthewidthanddirectionofthespinningrotors 0 verywideleft to right 64 mono 127 very wide right to left...

Page 132: ...row to add more echo presence 4 3 Split Pitch ADJUST SplitWide 0 127 Modulated varispeed in stereo One side goes low as the other side goes high ADJUST controls the rate and depth of the varispeed Goo...

Page 133: ...rameters 0 1 StereoTapDly ADJUST Mstr Fbk 0 100 A variation of n Ekos Beat this effect has left and right delay voices ADJUST controls master feedback for both voices The Soft Row includes controls fo...

Page 134: ...r adurationofoneeighth note ADJUSTdetermines theportionofthe four beats inwhich thegateis open 0 open for all four beats 127 open for only the first 16th note of four beats The Soft Row includes the L...

Page 135: ...s get darker as they repeat The Soft Row includes parameters for adding and reverb as well additional controls for the delays and filters 2 2 NonLinear 1 ADJUST EchoSlope 0 127 This effect produces ec...

Page 136: ...split into two frequency bands by this effect The two bands are then sent through two different rhythmic delays whose outputs are panned in opposite directions This effect deconstructs the tone of in...

Page 137: ...l triggers this left to right drive by When signal is detected it will move from left to right Doppler pitch shift is simulated as the image moves across the stereo field Use ADJUST to set the speed o...

Page 138: ...f a stereo high pass filter and a stereo reverb with the two effects in parallel Use ADJUST to set the cutoff frequency of the filter The reverb mix is turned all the way down you can add reverb by ch...

Page 139: ...produce the composite effect This effect is compatible with stereo and Surround mixes 1 4 Circular Pan ADJUST Rate 0 100 Similar to Go Away this preset sums the inputs to mono and uses the LFO to cont...

Page 140: ...are processed separately to maintain the image of stereo source material The tremolo rate is tempo controlled 2 cycles beat Press Tap to synchronize the effect with rhythmic material ADJUST sets the t...

Page 141: ...ix 0 127 This preset senses input level to produce an automatic volume swell into a chorus delay reverbeffect Soundsgreatwithguitar andkeyboardchords Thefadeinrateismoderate ADJUST controls the mix of...

Page 142: ...requency content of the effect Be sure to check out the Soft Row which contains parameters for tuning voice assignment and more 4 4 ModalImpulse ADJUST Tone 0 50 The resonators in this preset are tune...

Page 143: ...cs ofthistypicallytightsounding room Great for ADR work 0 2 Living Room ADJUST Decay 0 60 Another ADR preset medium spaced but with a short Rt ADJUST quickly changes if not perfect for your applicatio...

Page 144: ...struments sound great through this preset 2 0 ConcertHall2 ADJUST Emty Full 0 15 Thisrather largeconcerthallspacecontainsacoupleofreflections toreinforcethesource before the onset of reverberation ADJ...

Page 145: ...JUST sets the reverb time 3 1 JetChamber ADJUST Jet Knob 0 127 A big chamber reverbwithstereoflangingon the outputs Use ADJUSTtosetthe amount of whoosh The rate of the flange is controlled by the LFO...

Page 146: ...back to 0 and sit back The effect captures a stereo sample on the fly loops it and decreases the loop size as it repeats Reverb is added while the loop plays When the loop size gets to zero the effec...

Page 147: ...Foot switch 1 is patched to clear the delays ADJUST sets the reverb level for the loop 0 no reverb 127 all reverb The Soft Row contains theparametersfor settingthemaster delay for the loopas wellas s...

Page 148: ...4 This preset allows you to treat the input note as the root or third in minor third harmony ADJUST lets you select the inversion 0 slight detune 1 sixth below 2 third below 3 third above 4 sixth abov...

Page 149: ...spreadoutand thickenupthe sound ADJUST controls the amount of shift in cents One side shifts up the other shifts down 2 2 Phat Detune ADJUST TuneKnob 0 100 A classic detune effect with two additional...

Page 150: ...the input note as the root or fifth of a major seventh minor seventh or dominant seventh chord ADJUST lets you select the chord and the inversion 3 4 ModalChords1 ADJUST Mode 1 8 This preset will pro...

Page 151: ...produce arpeggios Try this with any short percussive track for an interesting effect ADJUST controls the amount of feedback decay of the arpeggio 4 8 AutoScratch ADJUST Rvb Mix 0 100 Run a rhythm bed...

Page 152: ...ontrols the amountofshiftper repeat 1 49 descendingpitch 50 nopitchchange 51 100 ascend ing pitch 1 0 Pitch Across ADJUST Detune 0 100 A singlenoteproducesa4 voicepanneddelay ADJUSTcontrolstheamountof...

Page 153: ...rpeggiation 2 2 Dim hARP ADJUST GlissRate 0 100 The inputs rise in a diminished arpeggiated scale This preset turns one harp note into a glissando or one quarter note into a harp chord Individual voic...

Page 154: ...reverb OutWidth is modulated to create spatial movement The entire effect is ducked by input level The reverb and echo decays increase as the level fades ADJUST controls the amount of detuning 3 6 Vib...

Page 155: ...ept that it is tuned to the tenor range C3 C5 4 3 VoxFix Alto ADJUST On Off 0 1 The same as VoxFix E2 C6 except that it is tuned to the alto range F3 F5 4 4 VoxFix Sprno ADJUST On Off 0 1 The same as...

Page 156: ...us P5 3 3 Mod Max P0 2 7 ModalChords1 P4 3 4 ModalChords2 P4 3 5 ModalImpulse P2 4 4 Mono VSO P5 3 9 MotherShip P5 0 3 Movable Echo P2 1 1 Movable Hall P2 1 2 MultiFx Fade P2 3 0 Nice Pan P2 2 8 NoCen...

Page 157: ...Lexicon 4 30 PCM 81 User Guide...

Page 158: ...receipt of MIDI messages Selecting a MIDI Channel MIDI Out MIDI In SomeextremelyusefuleffectscanbecreatedbycontrollingPCM 81parameters remotely in real time Almost all of the controllers found on a M...

Page 159: ...nt Clock set to Transmit On Tempo 0 2 Source set to Internal Tempo 0 0 Rate set with ADJUST or Tap Controlling PCM 81 Tempo Rate with MIDI Clock Using the PCM 81 as a MIDI Clock Source MIDI Tempo Cont...

Page 160: ...rol off and the sequencer is set to echo input Two PCM 81s can be slaved together by connecting a cable from the MIDI OUT jack of the master to the MIDI IN jack of the slave Additional PCM 81s can be...

Page 161: ...equencer A simple but quite powerful way to automate effects To send MIDI data from these controllers first set Control mode 3 2 Transmit to the desired MIDI Channel The default is Channel 1 Controlle...

Page 162: ...Wheel Controlling the Soft Knob with MIDI MIDI ADJUST 3 5 Send Mod Wheel Now the Mod Wheel on the MIDI instrument will control the soft knob patch of the running effect If you have a foot pedal conne...

Page 163: ...t bank can be changed with MIDI Bank Select Messages as follows 0 5 Program Banks 0 5 6 Internal Register Bank 7 11 reserved 12 58 Memory Card Banks The number of banks available on a given card will...

Page 164: ...setting SysEx to Receive On The default setting for the Device ID is 0 Controller Automation For applications where it is desirable to automate changes made to PCM 81 effects with its own controls AD...

Page 165: ...hese can be obtained directly from Lexicon Request PCM 81 MIDI Implementation Details Bulk Data Dumps Control mode 3 8 MIDI Dump allows selection of the following types of bulk data to be dumped direc...

Page 166: ...Channel X O Pitch Bend X O Control 1 119 OX OX ADJUST Footpedal Change Footswitch 1 and Footswitch 2 can be assigned controllers 1 119 for MIDI transmit Program X 0 127 See Implementation Change True...

Page 167: ...Lexicon 5 10 PCM 81 User Guide...

Page 168: ...amaged by exposure to temperatures below 22 F 30 C or above 167 F 75 C or by exposure to humidity in excess of 95 If a unit exposed to such conditions fails to operate after it returns to a normal ope...

Page 169: ...talLvl control at Control mode 0 2 is set to 100 Make sure that WordClock Control mode 0 0 is set to Ext XLR 48 or 44 1 DigitalS PDIF Coax Checlconnection toCoaxandmakesurethatthe Digital Lvl control...

Page 170: ...k Internal 48kHz 0 1 Analog Lvl 100 0 2 Digital Lvl 0 0 3 Word Size 20 bits 0 4 SCMS Multi Copy 0 5 Emphasis Bit Pass Thru 0 6 Output Level 4dBu System 1 0 Edit Mode Go 1 1 Mix Mode Pgm Global Mix Val...

Page 171: ...toring all of the default settings 1 Press Control 2 Use the Up and Down buttons to locate Row 1 System 3 Turn SELECT to 1 8 Initialize 4 Press Store The PCM 81 will display the message Are you sure P...

Page 172: ...l scale 10 dBu setting Protection Relays provided for output muting during power on off A D Performance Frequency Response 10 Hz to 20 kHz 0 5 dB Crosstalk 65 dB 10 Hz to 20 kHz S N Ratio 102 dB 20 kH...

Page 173: ...etects normal open or normal closed on power up Foot controller 1 4 inch T R S phone jack provided for footpedal 100 minimum 10k maximum impedance General Dimensions 19 0 W x 1 75 H x 12 0 D 483 x 45...

Page 174: ...Lexicon Inc 3 Oak Park Bedford MA 01730 1441 Telephone 781 280 0300 Fax 781 280 0490 Lexicon Part 070 12614 Rev 1...

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