Lexicon PCM 80 - V1.1 REV 0 PITCH FX User Manual
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Lexicon PCM 80 - V1.1 REV 0 PITCH FX User Manual

Lexicon PCM 80 - V1.1 REV 0 PITCH FX User Manual

Pitch fx algorithm card
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PCM 80
Pitch FX
Algorithm Card
V1.1
User Guide

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Summary of Contents for Lexicon PCM 80 - V1.1 REV 0 PITCH FX

  • Page 1 PCM 80 Pitch FX Algorithm Card V1.1 User Guide...
  • Page 2 Precautions This is a read only card. Use only with the Lexicon PCM 80, software version 1.10 or higher. To avoid damage to the card, do not expose to rain or moisture, extreme temperatures, direct sunlight, or extreme shock. In the event the card is dropped, damaged, or exposed to liquids, do not insert it into the PCM 80.

  • Page 3: Table Of Contents

    Contents Introduction 1. Pitch FX Card Operation Handling the Algorithm Card ............... 1-1 Loading the Pitch FX Algorithms ............1-3 Loading the Pitch FX Presets ............. 1-4 2. The Pitch FX Algorithms and Parameters Overview ..................... 2-1 The Quad>Hall Algorithm ..............2-2 The Dual-Chmb Algorithm ..............

  • Page 4: Introduction

    Introduction Thank you for your purchase of the PCM 80 Pitch FX Algorithm Card. Six algorithms, each combined with uncompromised Lexicon reverb, provide a wide range of useful pitch shift effects, ranging from pitch correction to unique special effects. A Quad>Hall algorithm provides a 4-voice pitch shifter, combined with the PCM 80 Concert Hall reverb.
  • Page 5 Each of these five algorithms has a different combination of FX and Rvb types, but the basic functionality of each is the same. Controls for each algorithm are arranged in a PCM 80-type matrix. The audio parameters are identical to those in the PCM 80.

  • Page 6: Pitch Fx Card Operation

    Handling the The Pitch FX Algorithm Card is a standard PCMCIA card designed to be used with the Lexicon PCM 80 (version 1.10 or higher). Care and handling of the card, Algorithm Card as well as some routine precautions are noted here. Please review these before using the card to avoid damage to the card, as well as abnormal behavior in the PCM 80.
  • Page 7 PCM 80 Pitch FX User Guide Lexicon MIDI SysEx register dumps require that the algorithm card used to create the effect(s) be loaded. Be aware that, if you create a bank of registers with effects created from more than one algorithm card, you will need to perform separate SysEx dumps for each card used.

  • Page 8: Loading The Pitch Fx Algorithms

    Pitch FX Card Operation In order to run the Pitch FX algorithms, the software must be loaded into the PCM Loading the 80’s “extension” memory. To do this: Pitch FX Algorithms If the PCM 80 is turned off: Insert the Pitch FX algorithm card into the PCMCIA card slot. Power up the PCM 80.

  • Page 9: Loading The Pitch Fx Presets

    PCM 80 Pitch FX User Guide Lexicon Loading the Pitch FX Presets Once the software is loaded, the PCM 80 will have access to the additional program banks available on the algorithm card. These extension memory banks are labeled with an X.

  • Page 10: The Pitch Fx Algorithms And Parameters

    The Algorithms and Parameters The Algorithms and Parameters Overview Digital pitch shifting requires temporal compression or expansion of audio data and the addition or removal of small audio segments to compensate. Raising pitch is accomplished by compressing the audio data — making it run faster.
  • Page 11 The PCM 80 Pitch FX Card contains 6 Pitch Shift algorithms: Quad>Hall, Dual- Chmb, Dual-Plt, Dual-Inv, Stereo-Chmb and VSO-Chmb. Each of these offers a unique type of pitch shifting, combined with an uncompromised Lexicon reverb. The following pages contain diagrams for each algorithm, along with a complete parameter matrix.
  • Page 12 The Algorithms and Parameters The PCM 80 Concert Hall provides very clean reverberation. It is designed to remain behind the direct sound — adding ambience, but leaving the source unchanged. This effect has a relatively low initial echo density which builds up gradually over time.

  • Page 13: The Dual-Chmb Algorithm

    Lexicon PCM 80 Pitch FX User Guide The remaining five Pitch FX algorithms: Dual-Chmb, Dual-Plt, Dual-Inv, Stereo-Chmb and VSO-Chmb are created from 3 Reverb blocks and 3 Pitch Shift Effect blocks. The individual reverb and effect blocks are described below, followed by the diagrams and matrixes and parameter descriptions for the algorithms.
  • Page 14 The Algorithms and Parameters 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 the Concert Hall algorithm, but the sense of space and size is much less obvious.

  • Page 15: The Dual-Plt Algorithm

    Lexicon PCM 80 Pitch FX User Guide The Dual-Plt Algorithm This algorithm includes a dual pitch shifter combined with the PCM 80 Plate reverb using the Dual FX structure. The pitch shifter has two voices. Each voice has independent controls for pitch, level, delay, pan, feedback and cross- feedback.
  • Page 16 The Algorithms and Parameters...

  • Page 17: The Dual-Inv Algorithm

    Lexicon PCM 80 Pitch FX User Guide This algorithm includes a dual pitch shifter combined with the PCM 80 Inverse The Dual-Inv Algorithm reverb using the Dual FX structure. The pitch shifter has two voices. Each voice has independent controls for pitch, level, delay, pan, feedback and cross- feedback.
  • Page 18 The Algorithms and Parameters...

  • Page 19: The Stereo-Chmb Algorithm

    Lexicon PCM 80 Pitch FX User Guide The Stereo-Chmb The Stereo-Chmb algorithm is optimized for the best possible shifted audio quality while maintaining the stereo imagery of the source material. Pitch is Algorithm adjustable up or down over a 3 octave range with a resolution of 1 cent. This effect is combined with the PCM 80 Chamber reverb using the Dual FX structure.

  • Page 20: The Vso-Chmb Algorithm

    The Algorithms and Parameters The VSO-Chmb The VSO-Chmb algorithm provides the same high quality shifter as Stereo- Algorithm Chmb, designed for on the fly pitch correction of varispeed playback sources. A varispeed parameter allows you to match the varispeed setting of the playback source.
  • Page 21 Lexicon PCM 80 Pitch FX User Guide VSO 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 the Concert Hall algorithm, but the sense of space and size is much less obvious.

  • Page 22: Parameter Descriptions

    The Algorithms and Parameters MstrCents Parameter This is a master pitch offset control for all voices. The value dialed in here will Descriptions be added to all voices. This control allows you to transpose pitch voices while keeping the relative interval(s) between them constant. MstrScale This is a master pitch scaling control for all voices.

  • Page 23: Tips For Setting Parameters

    Lexicon PCM 80 Pitch FX User Guide Parameter Descriptions Voice 1-4 (or 1-2) cont'd. These parameters determine the amount of pitch shift for the left and right input channels. In the Quad Shift algorithm, Voices 1 and 2 are left shifts and 3 and 4 are right shifts.

  • Page 24: Using The Submixer

    Using the Submixer Using the Submixer New configuration control is added to basic PCM 80 functionality with the Pitch FX Card. The most significant aspect of this expanded control is the addition of a Submixer which is 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 Submixer controls: Sends, Returns and Routing.

  • Page 25: Sends

    PCM 80 Pitch FX User Guide Lexicon The Submixer appears as row 1 on the parameter matrix of each of the Pitch FX algorithms. The first three parameters in the row are the basic Submixer controls: Sends, Returns, and Routing. Any configuration can be achieved by simply adjusting these three parameters.

  • Page 26: Routing

    Using the Submixer Routing The Routing parameter provides continuously variable control of the FX and Rvb effect routing: Rvb and FX in parallel, Rvb into FX (series) and FX into Rvb (reverse series). This parameter has a range of 0–400. The value of this parameter determines the routing/ordering of the stereo Rvb and FX effects.
  • Page 27 PCM 80 Pitch FX User Guide Lexicon Stereo Series 2 • The main stereo inputs are sent into the FX block. • The stereo output of the FX block is sent into the stereo inputs of the Rvb block. • The stereo output of the Rvb block is sent to the main left and right outputs.
  • Page 28 Using the Submixer Mono In/Stereo Out Series 2 • A mono mix of the left and right inputs is sent into the FX block. • The stereo output of the FX block is sent into the stereo inputs of the Rvb block. •...
  • Page 29 PCM 80 Pitch FX User Guide Lexicon Mono In/Stereo Out Parallel • The Rvb and FX blocks each independently 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.
  • Page 30 Using the Submixer Dual Mono In/Stereo Out • The Rvb block processes only the left input 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. Submixer Routing Submixer Sends Submixer Returns...
  • Page 31 PCM 80 Pitch FX User Guide Lexicon Dual Mono In/Mono Out • The Rvb block processes only the left input as a mono signal, and the FX block 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.

  • Page 32: Rvb And Pitch Fx Block Controls

    Using the Submixer Rvb and FX Block The Rvb and FX blocks shown in the previous configurations represent the Stereo Reverb and 2-Voice Pitch Shift effects. Each of these blocks has its own Controls set of controls, shown in the diagrams below. Rvb Block Pitch FX Block These effect block controls are also found in the Submixer row of each...
  • Page 33 PCM 80 Pitch FX User Guide Lexicon These parameters are described below, in the order in which they appear in the Submixer row. (All other effect parameters are identical to those in the PCM 80, and are described in the PCM 80 User Guide.) RvbMix, FX Mix These are independent wet/dry mix controls for the Rvb and FX effect blocks.

  • Page 34: The Presets

    The Presets The Presets The Pitch FX Algorithm Card has 100 factory-designed presets which are organized into two banks of 50 each (labeled X0, and X1). As with the internal PCM 80 banks, each bank is organized in a matrix of 5 rows of 10. Press the front panel Program Banks button to display the first bank.

  • Page 35: Program Bank X0 Vocal & Instrument

    PCM 80 Pitch FX User Guide Lexicon Vocal Shift Program Bank X0 Vocal & Instrument FixYerVox ADJUST: Offset 0–100 Turns your marginal singer into a rock’n’roll star. Bounce your vocals to another track and fix the pitch on the fly. Stereo In/Stereo Out. ADJUST gives you +100 cents of offset to correct any other intonation.
  • Page 36 The Presets Major Triads ADJUST: Inversion 0–6 The input note can be harmonized as the root, third or fifth of a major chord. ADJUST selects the harmony and inversion. 0=slight detune, 1=input is root (1st inversion), 2=input is root (2nd inversion), 3=input is third (1st inversion), 4=input is third (2nd inversion), 5=input is fifth (1st inversion), 6=input is fifth (2nd inversion).
  • Page 37 PCM 80 Pitch FX User Guide Lexicon EGtrPitchRm ADJUST: Fbk Mix 0–50 This preset produces a rich, room-like halo around every note. Sounds like reverb, but it’s not. How can you tell? Choke off a note and you’ll hear that there’s no decay. The effect is created by using pitch shifted echoes with cross feedback.
  • Page 38 The Presets Chromatic Up ADJUST: HalfSteps 0–12 Straightforward and simple, ADJUST lets you tune any chromatic interval up to an octave above the input note. Chromatic Dn ADJUST: HalfSteps 0–12 This variation lets you dial in any chromatic interval down to an octave below the input note.
  • Page 39 PCM 80 Pitch FX User Guide Lexicon Program Bank X1 Sci-Fi FX Music & Sound Design PullThePlug! ADJUST: Off/On 0–1 Use this special effect to simulate the sound of a tape machine, juke box (etc.) running down when the power has been cut off in the middle of a tune. Turn ADJUST from 1 to 0 to cut the power, and from 0 to 1 to turn it back on.
  • Page 40 The Presets PitchEkoRvb ADJUST: Eko/Rvb 0–100 The dual pitch shifters produce a detune/echo effect with reverb. ADJUST lets you set the balance of the two effects. 0=detune echoes only, 50=detune echoes and reverb, 100=reverb only. PitchPong ADJUST: DelayRate 0–100 The inputs are delayed, pitched down a little, then cross fed to the other side. Slap echoes bounce from left to right and fall slightly in pitch.
  • Page 41 PCM 80 Pitch FX User Guide Lexicon DimScaleDown ADJUST: ScaleRate 0–100 The inputs descend into a diminished arpeggiated scale. This preset turns one note into a scale or glissando. Individual voices are panned across the stereo spectrum. A little reverb is added.
  • Page 42 The Presets Verbato ADJUST: Depth 0–100 In this preset, a small stereo chamber reverb is routed through the stereo pitch shifter. The pitch shifter is set to create vibrato. A nice way to thicken up a track without messing with the dry sound.
  • Page 43 PCM 80 Pitch FX User Guide Lexicon Alphabetical Index of Presets NewQuad>Hall X1 4.5 24 String X0 3.0 NewSter-Chmb X1 4.9 4-NoteChords X0 3.3 NewVSO-Chmb X1 4.4 4ths & Dbl X0 1.6 OctDown Verb X0 2.8 Acid Chorus X1 3.9 Pentatonics! X1 2.9...
  • Page 44 Lexicon Inc. 3 Oak Park Bedford, MA 01730 USA Tel 781-280-0300 Fax 781-280-0490 Lexicon Part # 070-11674...

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