44 lines
2.1 KiB
Markdown
44 lines
2.1 KiB
Markdown
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# metabolus
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A QTWidgets C++ app for a basic digital synthesizer.
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This synthesizer isn't very good, but it's neat :3
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## Development plan:
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- [x] Build & project setup, get working hello-world program.
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- [x] QTWidgets hello-world program: basic increment/reset counter
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- [x] RtAudio hello-world: basic sine output
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- [x] Connect UI control to sound output, add a slider for frequency control
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- [x] Add note control via either Midi or a keyboard. Coordinate on-off events to
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start and stop tone generation
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- [x] Create a widget for this smart-slider to clean up the ui code
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- [x] Add envelope generation, attach to global volume for now. ADSR and such,
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responds to note-on/note-off events
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- [x] Make midi/keyboard control cross-platform. Use case will mostly be
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Midi -> linux and Keyboard -> windows though
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- [ ] Create oscillator class where the actual tone generation occurs. Multiple
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oscillators increase the sound complexity considerably
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- [x] Create a UI scope to visualize the synthesized composite waveform
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- [ ] Create wavetables for more complex tone generation. Needs to be selectable from ui
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- [x] Create digital filters, prob biquad. Controllable from ui obv (cutoff + resonance)
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- [x] Add polyphony somewhere. Probably involves a voice class. If processing power
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allows it, tie a voice to each midi note
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- [ ] polyphony is lacking sustain pedal rn
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- [ ] planning gets sparse this far out because its how far I got with the ESP32 synth
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- [ ] Filter upgrades including some more complex solving techniques (State Variable Filter),
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better key tracking, more natural envelope curves, filter drive, etc.
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- [ ] Reverb (quite a few ways to do this, needs more research)
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- [ ] Pitch tuning with the multiple oscillators (Octave > Semitone > Fine-tune)
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- [ ] Frequency Modulation (huge)
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- [ ] Profile saving and loading, also includes loading configurations like keymaps, audio
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engine config, etc. from a yaml instead of being hardcoded
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- [ ] Noise
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## setup
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TODO: instructions on build setup
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Package Dependencies: Qt 6, RtAudio, RtMidi
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$ ./scripts/build.sh
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PS ./scripts/build.bat
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