ROADMAP.md

Roadmap

The stars in parenthesis are an evaluation of the difficulty.

ForSynth 0.5

Development

• Add tests. (**)

Features

• A function converting dB to linear scale would be useful to set the sound level. (*)
• Synthesis: a bell (**)
• Compressor/expander effect (**)
• Scientific data sonification: by reading a data file? or by passing an array? (**)

Examples

• Simulating a radioactive decay, heard with a Geiger counter (a tribute to Kraftwerk). (**)
• An example using bells.

Documentation

• A first version of a FORD documentation. (**)
  • Transforming comments into FORD comments !>

Fix

• The problem of the Shepard–Risset glissando. (***)

ForSynth 0.6

• ?

Ideas for further developments

Audio effects

• Add more audio effects
  • Flanger (**)
  • Phaser (***)
  • Chorus (***)
  • Reverb (***): https://freeverb3-vst.sourceforge.io/
  • Could Doppler effect be used to obtain a Leslie speaker effect?
• Improve the compressor/expander apply_dynamic_effect() with attack, release, make-up gain, soft knee. (**)

New examples

• A Risset rhythm, ever accelerating. (**)

Sound synthesis

• Find algorithms for good drums, especially bass drums.
• Physical modelling (***)
  • Using https://gitlab.com/certik/stringsim ?
• Soustractive synthesis: add filters (FFT?) (***)

Sequencers

• A drum pattern object to ease programming rhythms, inspired by the pattern system used in example/drum_machine.f90. Could be also used by ForMIDI. (***)
• A note sequencer repeating a pattern. Could be also used by ForMIDI. (***)
• A sequence object, accepting a string with notes, with methods to obtain one by one their parameters (physical or MIDI). Could be also used by ForMIDI. (***)
  • The sequence could for example be coded as "A4,Q.,pf;A#4,Q,pf;..." (note, length, intensity).