Refine Procedural Drum Synthesis (TR-808/909)#134
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- Implemented 15-bit LFSR noise generator for authentic TR-909 Snappy texture. - Implemented two-stage amplitude envelope for TR-808 Kick to emulate diode damping. - Added comprehensive Analog Drift (micro-randomization) across all drum models (Pitch, Decay, Filter, Velocity). - Implemented random start offsets for noise-based drums to avoid repetitive artifacts. - Integrated Telegram Haptic Feedback on the downbeat (Step 0) in SequencerLoop. - Updated default Euclidean patterns to provide a techno foundation. Co-authored-by: Pitrat-wav <255843145+Pitrat-wav@users.noreply.github.com>
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| trigger(time: number, pitch: number, snappy: number, velocity: number = 0.8) { | ||
| // pitch maps to tone balance here (balance between low and high modes) | ||
| const toneBalance = pitch; | ||
| const toneBalance = applyVariance(pitch, 0.05); |
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When the snare Tone control is near its maximum, applying a 5% variance can push toneBalance above 1. That value is later used in velocity * (1 - toneBalance), so those hits schedule a negative gain for the low oscillator instead of simply muting it, causing random phase inversion/extra body at the edge of the knob range. Clamp the varied value back into the expected 0–1 mix range.
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This PR significantly refines the procedural drum synthesis engine by aligning it with the 'Deep DSP Analysis' research. Key improvements include authentic 15-bit LFSR noise for 909 snares, diode-style damping for 808 kicks, and extensive per-hit micro-randomization (Analog Drift) across all instruments to eliminate digital sterility. Additionally, it integrates Telegram WebApp haptics for enhanced user immersion.
PR created automatically by Jules for task 6677055435896649030 started by @Pitrat-wav