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Authentic Analog Drum Synthesis Engine (TR-808/909)#125

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feat/authentic-drum-synthesis-5072479071594381327
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Authentic Analog Drum Synthesis Engine (TR-808/909)#125
Pitrat-wav wants to merge 1 commit into
mainfrom
feat/authentic-drum-synthesis-5072479071594381327

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@Pitrat-wav

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Implemented a high-fidelity virtual analog drum synthesis engine for the Telegram Mini App, strictly adhering to the provided DSP research. This update replaces placeholder synthesis with authentic procedural models for TR-808 and TR-909 Kicks, Snares, Hi-Hats, Clap, and Cowbell. Key features include 15-bit LFSR noise generation, diode damping emulation for the 808 Kick, Schmitt trigger matrix emulation for Hi-Hats/Cowbell, and cent-based analog drift. Integrated a techno-style pattern template and Telegram haptic feedback for enhanced immersion.


PR created automatically by Jules for task 5072479071594381327 started by @Pitrat-wav

- Implement 15-bit LFSR noise generator in DrumUtils.
- Add cent-based pitch drift for accurate analog behavior.
- Refine TR-808 Kick with two-stage diode damping envelope.
- Refine TR-909 Kick with triangle body and noise/pulse click layers.
- Implement dual-mode TR-808 Snare and snappy TR-909 Snare.
- Implement TR-808 Hi-Hat matrix with 6 square oscillators.
- Refine TR-808 Clap and Cowbell models.
- Ensure robust node disposal across all instruments to prevent memory leaks.
- Add 'Apply Techno Template' feature and haptic feedback integration.

Co-authored-by: Pitrat-wav <255843145+Pitrat-wav@users.noreply.github.com>
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💡 Codex Review

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Reviewed commit: d07683017e

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Comment on lines +62 to +63
if (step === 0 && window.Telegram?.WebApp?.HapticFeedback) {
window.Telegram.WebApp.HapticFeedback.impactOccurred('light')

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P2 Badge Schedule downbeat haptics at the audio time

For Telegram users with haptics enabled, this runs impactOccurred immediately when Tone schedules the loop callback, not when playback reaches the supplied time. That means the vibration can lead the actual downbeat by Tone's lookahead even though the UI playhead below is correctly synchronized with Tone.Draw.schedule(..., time), so the rhythm feedback feels early. Schedule the haptic call against time as well instead of firing it inline.

Useful? React with 👍 / 👎.

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