Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Summary of Contents for H-Pi Instruments Tonal Plexus TPX 2s
-
Page 2: Table Of Contents
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" CONTENTS 1. Introduction ..........................Checklist ..........................Overhead Diagram ......................Side Panel Diagram ......................Recommended Accessories ....................2. Keyboard Layout ........................From Piano to Plexus ...................... - Page 3 INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" Tuning Table Changes ....................... 19 9. DIP Switches ..........................20 Bank Select Format ......................20 Velocity Randomization Bandwidth ..................21 Pitch Bend Response Timing .....................
-
Page 4: Introduction
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" 1. Introduction The H-Pi Instruments Tonal Plexus TPX2s/4s/6 is a hand-made instrument designed to be lightweight, easy to use, and compatible with the widest range of existing MIDI hardware and software, allowing easy exploration of the limitless universe of alternative tunings. -
Page 5: Checklist
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" Checklist TPX2s/4s/6 Every TPX2s/4s/6 unit is built by hand. Please do not be alarmed by any small blemishes you may find. -
Page 6: Overhead Diagram
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" Overhead Diagram Programmer When pushed and released, the currently selected preset tuning or patch and bank can be programmed. First, a tuning preset or patch preset is chosen to program, then a table is chosen or a bank and patch is chosen. -
Page 7: Side Panel Diagram
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" Side Panel Diagram LINE IN LINE OUT Stereo Headphones Volume Pedals Input a line level Output line level Connecting headphones Connect Lo-Z (20 kOhm) audio signal from... - Page 8 INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" Volume pedals may be used to control MIDI key velocity and MIDI volume, overriding the top panel faders. The pedal should be 20KOhm. High impedance guitar volume pedals will work, but not very well.
-
Page 9: Keyboard Layout
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" 2. Keyboard Layout The Tonal Plexus keyboard geometry was designed in 2002 by Aaron Andrew Hunt. This particular geometry is unique in the history of the musical keyboard, although it bears resemblance to previous inventions known as generalized keyboards, early examples of which are found in the work of Paul Von Janko (1875) and R.H.M. -
Page 10: Default Master Tuning
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" Figure 1 Default Master Tuning 205ET The master tuning of the Tonal Plexus was determined by way of thorough research in music theory, music notation, and pitch perception. -
Page 11: Key Diameter And Elevation
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" maximize pitch control and expressivity, each comma is broken into 5 JNDs, so that the smallest steps on the keyboard are just under 6 cents in size. Each octave contains 205 JNDs. Using JND fine tuning, any interval can be played with a maximum tuning deviation of less than 3 cents. -
Page 12: Tuning Tables
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" 3. Tuning Tables Each tuning table provides a simple 1 to 1 correspondence between raw MIDI Notes played and retuned MIDI Notes output. -
Page 13: Untuned Output Mode
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" Untuned Output Mode The Tonal Plexus keyboard normally sends tuned output corresponding to MIDI Note and Pitch Bend data stored in a Tuning Table;... -
Page 14: Programming A Tuning
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" Programming a Tuning Table Programming a tuning table means storing it in one of the 32 possible memory locations. Tables are programmed using Tonal Plexus Editor (TPXE) software. -
Page 15: Presets
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" 5. Presets The TPX2s/4s/6 has 16 table presets and 16 patch presets. Each table preset allows a tuning table to be recalled at the touch of a button without affecting the current bank and patch. -
Page 16: Top Panel Controls And Display
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" The process above may be canceled at any moment by pressing any preset button. In this case the display stops flashing and preset programming stops. - Page 17 INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" FADER OPT FADER OPT FADER OPT SELECT FADER M · A · L Modulation Attack Low Frequency Equalizer V ·...
-
Page 18: Local Control Switch
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" Local Control Switch The switch called LOCAL CONTROL on TPX2s/4s/6 provides a way to disconnect MIDI traffic coming from the keyboard. -
Page 19: Natively Microtonal Synthesizers And Samplers
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" YOUR SYNTHESIZER’S MIDI IMPLEMENTATION CHART FUNCTION TRANSMITTED RECOGNIZED REMARKS Pitch Bend (X or O) Channels 1-16 Control Change (X or O) Data Entry MSB 100, 101... -
Page 20: Patch Changes
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" ever having to touch the controls on TPX2s/4s. For this reason we will refer to such control as Remote (not to be confused with wireless control). -
Page 21: Dip Switches
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" 9. DIP Switches BANK SYSEX BEND / SYSEX FORMAT ON / OFF TIMING BEND VELOCITY SUSTAIN TIMING BANDWIDTH POLARITY DIPs 1 &... -
Page 22: Velocity Randomization Bandwidth
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" and turn the unit back ON. DIP 3: Pitch Bend Response Timing Synthesizers from various manufacturers respond differently to Pitch Bend messages in terms of timing. -
Page 23: Global Pitch Bend Mode
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" DIPs 5 & 6: Velocity Randomization Bandwidth The keys of TPX2s/4s/6 are not velocity sensing, which means that the MIDI NOTE messages will be sent from the unit with a constant velocity value. -
Page 24: Sustain Pedal Polarity
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" this mode, the center position of the MOD fader gives unmodified pitch, the top position bends pitch up a 12ET wholestep, and the bottom position bends the pitch down a 12ET wholestep. To engage this mode, turn the unit OFF and switch DIP switch 7 to the ON position, and then turn the unit back Default: Pitch Bend Mode OFF Option: Pitch Bend Mode ON... -
Page 25: Sysex Recovery Timing
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" DIP 9: Sysex Recovery Timing When using DIP 4 ON to retransmit sysex data, you may need to use DIP switch 9 to add a short delay to the retransmission, particularly if your unit is older. -
Page 26: Appendix
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" APPENDIX General MIDI Patch List BANK 000 000 Grand Piano 032 Acoustic Bass 064 Soprano Sax 096 Synth Rain FX 001 Bright Piano 033 Upright Bass 065 Alto Sax... - Page 27 INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" General MIDI Patch List BANK 127 032 CheezElectrc 064 AcousticBass 096 ModBrass2 000 GrandPiano 033 HurdyGurdy 065 UprightBass 097 Vibes1 001 BrightPiano1 034 SynthAHHs...
-
Page 28: Midi Implementation Chart
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" MIDI Implementation Chart FUNCTION TRANSMITTED RECOGNIZED REMARKS Note ON Channels 1-16 Note OFF Channels 1-16 Velocity Channels 1-16 Channels 1-16 Pitch Bend 14-bit... -
Page 29: System Exclusive Messages
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" System Exclusive Messages Programming a tuning table note (24 bytes) Programming a tuning table name (24 bytes) F0 - SysEx start F0 - SysEx start 00 - first ID 00 - first ID... -
Page 30: Troubleshooting
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" Troubleshooting There is no output from the internal synthesizer. • Is the ampifier volume at or near zero? •... - Page 31 INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" Pitches are tuned incorrectly on a external MIDI synthesizer or sampler. Is MIDI IN of the synthesizer connected to TPX2s/4s/6 MIDI THRU? TPX2s/4s/6 MIDI THRU gives untuned output.
-
Page 32: Technical Specification
INSTRUMENTS www.h-pi.com · T O N A L P L E X U S T P X 2s/4s/6 · User Manual !" TPX2s/4s/6 Technical Specification 2048 notes per table, 1688 notes accessed by keyboard Tuning Tables 32 User Programmable Tuning Tables (no protected registers) 32 x 2048 Notes = 65,536 pitches stored in nonvolatile memory MIDI Pitch Bend using a Dynamic Channel Allocation Algorithm Tuning Protocol...