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  1. Hello friends. I am Rolf and I would like to share my latest DIY project "Jeannie" with you. It is an 8 voices polyphonic synthesizer based on a Teensy 4.1 board. I started doing it last summer. Now I have built an effects circuit for the synthesizer. "Jeannie" DIY Synthesizer Effect circuit Video The Fx menu in the synth is almost ready. The new one is still missing Display of the parameter values after a program change. There are more videos on my youtube channel: https://www.youtube.com/channel/UCXQSpP0qn5MXSkyDo6PZ4Cw Greetings from germany. Rolf
  2. rolfdegen


    DE-GENERATOR DIY Synthesizer / Sampler Project block in german: https://www.sequencer.de/synthesizer/threads/avr-synthesizer-wave-1-de-generator.87599/ Project block in english: https://forum.mutable-instruments.net/t/shruthi-synthesizer-and-my-wave-1/2504/1153 Youtube:
  3. I am going to make parts of my Pyratone sound system available for DIY projects - possibly as a replacer for the SID :-) Currently I am designing a system to incorporate both, the sound engine as well as dsp-processors into one FPGA. (My latest system with a Cyclone IV and Spartan beeing used on stage covers about 6-8 FPGAs altogether and runs on eval boards of Altera and Xilinx which is not suitable for normal designers or musicians). Now, I first found a module which seems to make it possible to offer functions for a reasonable price beeing interesting also for DIY. Several parts of the system are already running in professional systems for audio test, ultra sonic and radar apps. For a first step, there will be a demo board which can be purchased or self built with audio IO apps to test the engine. According to the need of the musicians I will select the detailed functions, so I am starting discussion now to be able to react on musicians demands. What is planned: 4 parallel instruments with at least 64 channels, maybe 128 - depending on RAM and FPGA. At the moment 64 channels. The 64 channels incorporate 61 + 3 voices 61 voices behave like a piano, meaning 61 times polyphone, 3 voices behave like a mono synth. This leads to 4x4 instruments, where 4 can be pianos, organs or keyboards, and 12 individual monophone voices. Each voice has 4 Oscillators and 6 sound paths in parallel causing harmonics, FM modulation and more based on classical and parametric wave forms. All patchs can be routet to 8 channels, leading to voices which can be moved spatially. All voices and parameters have their own ADSR and LFOs. So pressing keys after each other will start individual LFOs and sound behavour. OSCs have up 768kHz sample rate, LFOs up to 16384 sample rate. All parameters have 10 bits instead of 7 bis resolution. Sounds and Parameters can be modulated in real time from MIDI and UART (PC). Altogether there are (LFO + ADSR) 4000 units running at the same time Reverb is added dynamically creating more sound sources. Altogether 4 x 6 x (1+2) sound sources are available for one sound to drive the 8 channels, so one sound of any key will appear in different ways at different points of time The placement runs according virtual microphone placement according to ORTF and AB strategie causing spatial effects The 8 channel sound processor can by layered in that way the 4 instruments create 4 different spatial scenes MIDI Layering makes sure that you can attach 4 keyboards, split and joyn them that way that it is possible to drive 16 different sound scenes the same time. so a 96 Key Piano can be emulated with two real keyboards such as one keyboard could drive a dual manual organ with 2x126 keys According to the demand and place in the FPGA, also MIDI ARPs, Sampling, Wavetable and BEATMORPH is available. See www.96khz.org regarding my projects. I also might add the Graphical Oscilloskop and Graphical Equalizers and Master Compressors is possible. Highlight: A real time audio to midi converter for guitar and human voice to drive the synth directly. Planned: Support for polyphone after touch and USB to interface to Roli Seaboard, Touch Keys and similar devices. More details to come at WWW.PYRATONE,DE ------------------------------------------------- The system makes use of some routing and programming technologies which are only possible in FPGAs and can in no way be made real in DSP-Systems. Several design principals regarding detailled FPGA design are even invented by myself like 3D pipelining and static roll off FSM and totally unique, nowhere documented and only available in my FPGAs system. Technical details, so far as planned / realized 24 Bit precision frequency input setting with high prescision of less than 0,1 Cent deviation Frequency range 8 Hz to 24kHz (consumer) or 0,2 Hz to 300 kHz) MIDI timing up to 375 bpm with precision of 0,03 Hz - self synchronized, externally synched, manually synched Recognizes Note On, Off, Value, Velocity, Aftertouch, Channel Number ... 4x Normal MIDI (31k, DIN5) and 4x fast MIDI 2000 (3MBit via S/PDIF) 256 MIDI Notes recognized, 4 tables for MIDI note to Frequency conversion including "Bach pure", "chromatic-balanced" , "piano spread" and "PYRA86" (my 196/185 tuning) - reprogramable!!! Global tuning, Fine Tuning, Vibrato and the typical functions of keyboards Harmonics, Distortion, FM. Cutof and the typicall functions of synths Wavetable according to resources in FPGA, at least for 2-3 parallel voices, 4MB sample RAM Envelopes with ADSR and /OR LFOs for all filters and parameters in parallel per key. Reverb with 4MB 32 bit resoution, 3D Placer 8 channel outputs at 24 Bit / 96kHz with simple PDM analog, I2S, DSD256 and TDM96-8, 4 extra channel for double bass aray ------------------------------------------------- * all parameters are preliminary.
  4. rolfdegen


    DE-GENERATOR Midi Sampler/Synthesizer English blog: http://mutable-instruments.net/forum/discussion/2504/shruthi-synthesizer-and-my-wave-1#Item_1056 German blog: http://www.cczwei-forum.de/cc2/thread.php?threadid=5878&page=29&sid=bf325d3654a16989e2b0aee1f7045039
  5. This is the DEGENERATOR Motherboard and CPU-Board
  6. This is the Motherboard PCB of Degenerator. More Info in my Blog: http://mutable-instruments.net/forum/discussion/2504/shruthi-synthesizer-and-my-wave-1#Item_1002
  7. This is the Motherboard PCB of Degenerator. More Info in my Blog: http://mutable-instruments.net/forum/discussion/2504/shruthi-synthesizer-and-my-wave-1#Item_1002
  8. This is the Motherboard PCB from Degenerator english Blog: http://mutable-instruments.net/forum/discussion/2504/shruthi-synthesizer-and-my-wave-1#Item_996 german Blog: http://www.cczwei-forum.de/cc2/thread.php?postid=91164#post91164
  9. english Blog: http://mutable-instruments.net/forum/discussion/2504/shruthi-synthesizer-and-my-wave-1#Item_986 german Blog: http://www.cczwei-forum.de/cc2/thread.php?postid=91021#post91021
  10. Motherboard of my DIY Synth "DEGENERATOR" Hi my fiends! Just Andre sent me the first psb-designe from the motherboard of Degenerator. On left top site is the position from power connector and negativ switching regulator P3596. Under the regulator the components of the voltage monitoring. These Components are covered by the CPU board. Right next to the negativ switching regulator position 4 liniar voltage regulators for + 3.3V + 5V + 8V -8 Volt. For the + 5V regulator there will be a heat sink. On the top right site of motherboard are planned the position of the Midi-jacks and the audio jacks. On the free place are planned the delay and VCA circuit. English blog: http://mutable-instruments.net/forum/discussion/2504/shruthi-synthesizer-and-my-wave-1#Item_984 German blog: http://www.cczwei-forum.de/cc2/thread.php?postid=90949#post90949
  11. This is the power supply in DE:GENERATOR Link german blog: http://www.cczwei-forum.de/cc2/thread.php?threadid=5878 Link english blog: http://mutable-instruments.net/forum/discussion/2504/shruthi-synthesizer-and-my-wave-1#Item_966
  12. This is the CPU Board from my DIY Synthesizer DE:GENRATOR Blog english: http://mutable-instruments.net/forum/discussion/2504/shruthi-synthesizer-and-my-wave-1/p1 Blog in deutsch: http://www.cczwei-forum.de/cc2/thread.php?threadid=5878
  13. This is the CPU Board from my DIY Synthesizer DE:GENRATOR
  14. I understand there is a build of the Goom synthesizer for the MBHP_CORE_STM32F4 that was put together a while ago by TK at the request of tffshtt. I'm wondering if anyone would have any insight as to how I can get this onto my Nucleo-F411RE? I'm am fairly new to this sort of thing, with limited experience related to Arduino boards so far. I've tried uploading the mios32 bootloader via the ST-LINK utility, but have not been able to connect to the Nulceo via MIOS Studio. I am able to upload the project.hex for the compiled Goom release via ST- LINK but as my board has no peripherals, I have no clue where to build midi input, or audio output circuits to potentially interact with the program and see if it is functioning. Your help and patience is very much appreciated, Andre
  15. This is the prozessorboard from my DIY Synthesizer 'DE-GENERATOR' English blog: http://mutable-instruments.net/forum/discussion/2504/shruthi-synthesizer-and-my-wave-1#Item_946 German blog: http://www.cczwei-forum.de/cc2/thread.php?threadid=5878&page=26
  16. My Blog: http://midibox.org/forums/topic/17207-avr-synthesizer-wave-1/?page=12
  17. DIY Synthesizer 'Preset Menu' german website: http://www.cczwei-forum.de/cc2/thread.php?threadid=5878 english website: http://mutable-instruments.net/forum/discussion/2504/shruthi-synthesizer-and-my-wave-1#Item_897
  18. This is the Sample Recording Menu in my DIY Synthesizer. Record function is per midi note, key ore threshold Youtube: https://www.youtube.com/watch?v=2Vn8oYqZZrc My Blog in german: http://www.cczwei-forum.de/cc2/thread.php?postid=88614#post88614 My Blog in english: http://mutable-instruments.net/forum/discussion/2504/shruthi-synthesizer-and-my-wave-1#Item_885
  19. My Synthesizer Project: englich: http://www.mutable-instruments.net/forum/discussion/2504/shruthi-synthesizer-and-my-wave-1/p1 german: http://www.cczwei-forum.de/cc2/thread.php?threadid=5878
  20. My biggest DIY-Synthesizer Project: http://www.mutable-instruments.net/forum/discussion/2504/shruthi-synthesizer-and-my-wave-1/p1 In German: http://www.cczwei-forum.de/cc2/thread.php?threadid=5878
  21. This is my Synthesizer with conact ALFAT OEM Board (SDCARD+USB). By alfat board I can load waveforms and sound parameters in my synthesizer.
  22. AVR-Synthesizer "WAVE 1" VCF-circuit
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