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Author SHA1 Message Date
gurixandClaude Opus 4.6 6b2db48339 feat(synth): add LFO modulation, ADSR envelopes, pentatonic tuning, and soft limiter 
Replace static EMA-smoothed drones with an evolving ambient soundscape:
- ADSR envelope system with sustained (2s attack, 4s release) and bursty
  (30ms attack, no sustain) modes per protocol group
- LFO pitch wobble and amplitude tremolo with incommensurable rates per
  group (Eno technique) so modulation patterns never repeat
- C major pentatonic frequency tuning (just intonation) — any combination
  of active protocols sounds consonant
- tanh soft limiter on master output prevents clipping
- Sync all documentation: README, PROJECT.md, ARCHITECTURE.md, v1.2
  requirements traceability

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-27 19:38:58 +01:00
gurix 43307c31d5 feat(05-02): decouple NewBank from global config and fix dynamic GainPerLayer 
- NewBank now accepts (tau float64, cfgs map[classify.TrafficClass]FreqConfig)
- gainPerLayer field added to OscillatorBank, computed as 1.0/float64(len(cfgs))
- RenderWindow UpdateTarget loop iterates b.layers (not classify.AllClasses())
- RenderWindow render loop uses b.gainPerLayer (not GainPerLayer constant)
- encode/mp3.go updated to pass synth.ClassFreqConfigs as default config map
 2026-03-26 17:37:44 +01:00
gurix 23dcfdba1d feat(02-02): OscillatorBank multi-layer rendering from WindowSnapshot 
- NewBank creates 11 layers from ClassFreqConfigs, one per TrafficClass
- RenderWindow transforms WindowSnapshot into SamplesPerWindow stereo frames
- GainPerLayer (1/11) applied per layer guarantees no clipping with all layers at max
- PanGains applied per layer for constant-power stereo positioning
- EMA amplitude smoothing provides temporal convergence across windows
- 7 bank tests: layer count, output length, silence, non-zero, no-clip, stereo pan, EMA convergence
 2026-03-26 12:03:06 +01:00