Procedural Drum Synthesis & Techno Patterns Implementation#122
Procedural Drum Synthesis & Techno Patterns Implementation#122Pitrat-wav wants to merge 1 commit into
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…n research - Refined all TR-808 and TR-909 synthesis models (Kick, Snare, Hi-Hats, Clap, Cowbell) to strictly follow the DSP research specifications. - Implemented authentic 15-bit LFSR noise for 909 Snappy component. - Updated pitch drift to use cent-based logarithmic formula (+/- 1-2 cents). - Added master saturation with soft-clipping hyperbolic tangent curve. - Implemented 'Techno Randomization' feature in instrument store and UI. - Ensured proper node disposal and Web Audio API safety (positive ramp guards). - Synchronized initial audio engine state with UI parameters. Co-authored-by: Pitrat-wav <255843145+Pitrat-wav@users.noreply.github.com>
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| // Sync volumes | ||
| if (volumes.kick) this.outputKick.gain.value = volumes.kick |
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A value of 0 is a valid drum volume (the volume knobs allow muting), but this truthiness guard skips it. If the bulk sync runs with a muted channel—for example after restoring or preloading the audio store before constructing a new DrumMachine—the Gain node keeps its constructor default of 1, so the channel plays at full volume instead of staying muted; check for undefined/property presence rather than truthiness.
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This PR implements a comprehensive overhaul of the drum synthesis engine based on the research paper "Программный синтез аналоговых ударных инструментов: Глубокий DSP-анализ и реализация на базе Web Audio API".
Key changes:
generateLFSRNoiseand refinedapplyPitchDriftfor musical accuracy.DrumMachineengine.exponentialRampToValueAtTimecalls target positive values (0.001) to prevent audio engine glitches.PR created automatically by Jules for task 15076511406910216954 started by @Pitrat-wav