Code launched at bitbucket
--- Written in Verilog(2005) + Systemverilog
--- Directly compilable (Altera Quartus II v_11.1 sp1) with 3 different (Terasic) hardware developer kits. (Altera NEEK, DE2-115 with TRB LTM LCD touchscreen and the TPAD/VEEK)( http://www.terasic.com.tw/en/ ).
-- Dx-7 style envelope generators 2 pr. OSC voice.
-- is (currently) tested compilable & playable with from 1 - 4 osc's and up to 32 voices (DE2-115 + LTM).
-- feedback & modulation matrix.(also implementable for 2nd env gen)(inspired from here: http://home1.gte.net/res0658s/FPGA_synth/8opFM16voice.html)
-- interresting harmonic overdrive distortion feature.
-- working touch LCD display of most parameters (possible to use to change parameters instead of using sysex).
-- working MIDI panic button
-- Based upon 1/4 of a sine LUT and signed integers. (No floats)(shared by: http://www.fpga4fun.com/ (zero cross corrected)).
-- Adjustable pitch scaling.
-- Coarse & finetune.
Can be used as a template to get quickly up and running to experiment with FPGA based sound synthesis ideas.
Especially for newbies.
rev 0.8, ready for publication and mostly playable and editible via midi sysex strings.
rev 0.8.001: DE2-115 LTM + VEEK(tPad) + NEEK versions online and working with both sysex and CC controllers.
Based upon functional programming via logical concepts + trial & error.
No simulation used and tested mostly by ear.
a blend of verilog 2001 & systemverilog.
2n'd osc env gen destination matrix (is not yet implemented).
Project now on bitbucket.org
The synthesizer is now stable.
Now using ubuntu 12.04 for development + win 7
--- Make quickstart usermanual with midi implementation for synth users...
up so it can give a stable structure without degrading the synthesize engines sonic quality.
---> Get dogygen based documentation to work(problem with the generates). (Now working, needs to be added to online code)
--- Make a description of the concepts, ideas and functionality behind each logic module and the overall construction.
--- add a internal memory to add a 3rd vectormath based dimension in the synth engine.(moved to wishlist)
---> need feedback from viewers.
Wish list: --- add a internal memory to add a 3rd vectormath based dimension in the synth engine.
--- implement a Openhardware Xilinx soundsynthesis port maybe via connecting to the Milkymist project.
--- Construct better (Android based) Gui , currently experimenting with Beagle board/bone and Pandaboard