Research-based VA Drum Synthesis Implementation - #138
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…zation - Implemented procedural TR-808/909 synthesis based on deep DSP analysis research. - Added 15-bit LFSR noise generation for authentic vintage digital textures. - Integrated randomized noise start offsets to eliminate machine-gun effect. - Added musical drum randomization feature with Telegram haptic feedback. - Improved engine-to-store synchronization and Web Audio API robustness. Co-authored-by: Pitrat-wav <255843145+Pitrat-wav@users.noreply.github.com>
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| if (velocity <= 0) return; | ||
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| // Use random start offset in the noise buffer to avoid "machine-gun" effect | ||
| const randomStart = Math.random() * (this.noiseBuffer.duration - 0.5); |
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When decay is high, this clap can be scheduled to play for roughly snapCount * snapInterval + (0.1 + decay * 0.5) seconds, up to about 0.69s, but this offset only guarantees 0.5s remains in the 2s buffer. In that setting, offsets above about 1.31s make the buffer source end before stop(finalDecayStart + decayTime), so hits randomly truncate and dispose the noise chain early instead of honoring the decay knob; bound the random offset by the actual scheduled duration or loop the noise source.
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This PR overhauls the drum machine engine to strictly follow the "Analog Drum Synthesis in Web Audio API" research specifications.
Key improvements:
PR created automatically by Jules for task 15843690483125918679 started by @Pitrat-wav