MOMENTUM - TSYNTH - NEWS - BUY

TSynth is a Teensy 4.1 based synthesizer using PJRC Audio Board and Audio Lib

The pcb and front panel are available from Tindie.com with SMD 4067 multiplexers, 6N138 opto-isolator, capacitors and resistors fitted. The entire cost of parts to build TSynth will be around $99 if you buy components from the cheaper suppliers and the build time around two hours to solder. Plans for a 3D printed/laser cut enclosure are also available. Questions: info@electrotechnique.cc

** TSYNTH PCB FILES ARE NOW AVAILABLE **

KiCAD PCB files are availbale in Electrotechnique’s Github repository

~RESELLERS~

Coq au Lores ~Coq Au Lo-Res - Germany and Europe~

ALS ~AnalogLabSwiss - Switzerland and Europe~

Inpublic ~Inpublic - NY, USA~

~Bulk orders for resellers available on Tindie~ ~Bulk orders for resellers available on Tindie~

Discussion forum

Facebook Users Group

Go to Troubleshooting common problems

Github has source code, model files and documents

Build Guide and User Manual for T4.1 (PCB Rev 1.3) are here - Docs
T4.1 firmware (PCB Rev 1.3) is here - Firmware

Specifications

Oscillators

  • 12 voice polyphony (last note priority), two oscillators per voice, velocity sensitive, detunable with +/- 2 octaves range, Sine/Sample & Hold (like tuned noise)/Square/Sawtooth/Ramp/PWM/Var Triangle/User waveforms and level. Square, Sawtooth and Pulse waves are band-limited.
  • Pulse Width/Var Triangle can be set for each oscillator with PWM by dedicated LFO or from the filter envelope
  • Pink or white noise level
  • Dedicated LFO for pitch mod (can be retriggered by note on), Sine/Triangle/Sawtooth/Ramp/Square/S&H waveforms
  • Pitch can be modulated by filter envelope (+/-)
  • Oscillator FX - XOR creates lots of harmonics with certain waveforms and X Mod ‘Cross Modulation’ bell-like sounds.
  • Dynamic Unison with all 24 oscillators detunable from each other - one, two, three or four notes can be played with oscillators distributed among them
  • Chord Unison with all oscillators playing a chord selected from detune control - major, minor, diminshed…
  • Monophonic mode - first, last, highest, lowest note priorities.
  • Polyphonic Glide with variable time

Filter

  • State variable 12dB filter (SVF) with continuous mix between LP and HP (provides notch filter) and BP
  • Cutoff freq and resonance
  • Cutoff can be modulated by dedicated exponential ADSR envelope (+/-), dedicated LFO
  • LFO has same waveforms as pitch LFO (can be retriggered by note on) and rate can be set to match MIDI clock (tempo) with variable time division (1,3/4,1/2,1/4,1/8…)

Amplifier

  • Dedicated ADSR envelope with exponential attack (adjustable), decay and release stages
  • Volume
  • Effect amount and mix - currently for stereo ensemble chorus rate and mix but could be set up to allow choices in Settings menu

Patch & Program Buttons

  • Encoder with button for data entry, Back button for menu navigation
  • Save and Delete buttons for storing patches
  • Holding Settings initialises the current patch to match the panel controls. Holding the Save button takes you into a patch deletion page.
  • Settings Menu - Velocity curve, Pitch Bend and Mod Wheel range, VU Meter, oscilloscope display, bass enhance, MIDI In, Thru and Out options.

MIDI

  • USB HOST MIDI Class Compliant (direct connection to MIDI controller, no PC needed)
  • USB Client MIDI In from PC
  • MIDI In 5 pin DIN
  • MIDI Thru/Out 5 pin DIN - configurable as a thru with filtering options or an out

Audio

  • SGTL5000 Audio Shield 16 bit, 44.1 kHz Stereo out
  • USB Audio in/out—appears as 16 bit, 44.1 kHz audio interface on PC