PI L SQUARED MIDI powered, duophonic Synth square wave synthesis digital & analog filter User Manual Ploytec GmbH – (PL2) Synthesizer - English Manual - Version 1.
Disclaimer Contents The information in this document is subject to change without notice and shall not be deemed as a warranty by the seller. No warranties, ex- Introduction 4 Important Notes about Power Supply 4 pressed or implied, are made with regard to the quality, suitability or accuracy of this document.
Introduction Overview of Technology We are pleased that you have chosen a Ploytec (Pi Lambda squared 2 or simply PL2) synthesizer system for your musical endeavors and would like to congratulate you on your decision. We’re convinced this innovative development will prove extremely useful to you in the coming years and, above all, provide you with a great deal of entertainment. Despite its small housing the PL2 is a complete duophonic mono synthesizer.
Connectivity Signal Routing 1. MIDI jack. With the MIDI input jack it is possible to connect external MIDI peripheral (e.g. keyboards, PC MIDI interfaces, etc.) Usually the PL2 will be powered through this jack also. 2. Audio output jack. The output jack is designed to be connected to unbalanced RCA (cinch) lines. If possible only use high quality RCA audio cables. 1 2 3 3. Micro-B USB jack.
Play Modes Instruction Status Byte Data Byte Meaning Mono On 126 0-127 Only oscillator 1 is active. Dual On 127 0 Both oscillators (having equal phase positions) are active as soon two notes are played at the same time. If more than two notes are played MIDI controller #89 sets the priority. Dual/Detune Dual/Octave 26 or 77 27 or 78 On: 0-63 Off: 64-127 Both oscillators have unequal phase positions. [Off ] will switch back to the mono mode.
Oscillators Instruction Status Byte Data Byte Meaning Waveform 24 or 75 1: 0-31 2: 32-63 3: 64-95 4: 96-127 1: Classic square wave (pulse) form - [PWM 1] is adjusting. 2: Combined by A and B - [PWM 1] adjusts A, [PWM 2] adjusts B. 3 and 4: Complex square wave forms - [PWM 1] adjusts lower half wave, [PWM 2] adjusts upper half wave.
Filter LFO The integrated low frequency oscillator (LFO) can effect up to five destination parameters. The LFO speed will synchronise automatically to an external applied MIDI clock. Instruction Status Byte Daten Byte Meaning Filter Cutoff 18 or 74 0-127 Adjusts the digital filter cut-off frequency. Filter Resonance 15 or 71 0-127 Amplifies the digital filter resonance area. Instruction Status Byte Data Byte Meaning DC Offset (Post Filter) 22 or 94 0-127 Bitshifter.
Modulation Wheel Bitpattern DatenByte 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 ADSR Release OSC Volume Filter Reson.
Output Appendix Instruction Status Byte Data Byte Meaning Out Volume 7 0-127 The output includes an analog volume control which is linked commonly with the following saturation stage. The output signal therefore gets rising compression by rising output level. All values use decimal notation Program Memory The PL2 program memory includes 64 positions which can be selected by standard MIDI program change messages.
MIDI Implementation Chart [PL2 (PI L SQUARED) duophonic square wave synth] Date:20.10.
+--------------------+-------------+-------------+--------------------------------------+ | Function | Transmitted | Recognized | Remarks | +--------------------+-------------+-------------+--------------------------------------+ |Program | x | o 0-63 | | |Change True Number |*************| 0-63 | *9| +--------------------+-------------+-------------+--------------------------------------+ |System Exclusive | x | o | *10| +--------------------+-------------+-------------+------------------------------------
