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Enhance Drum Synthesis with DSP-based Micro-randomization and Glue Routing#40

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dsp-drum-synthesis-enhancement-9464957659488690575
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Enhance Drum Synthesis with DSP-based Micro-randomization and Glue Routing#40
Pitrat-wav wants to merge 1 commit intomainfrom
dsp-drum-synthesis-enhancement-9464957659488690575

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@Pitrat-wav
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I have implemented advanced DSP enhancements for the drum machine based on the provided research. The synthesis models for TR-808 and TR-909 now include micro-randomization for a more organic, analog feel, and the audio routing has been updated to include a master saturation/compression "glue" stage. Additionally, I've configured the default Euclidean patterns and kit for a better out-of-the-box experience.


PR created automatically by Jules for task 9464957659488690575 started by @Pitrat-wav

This commit enhances the drum machine's synthesis engine by incorporating
detailed DSP analysis for TR-808 and TR-909 models. Key improvements include:

- Added micro-randomization (analog drift) to all drum models:
  - Pitch drift (+/- 0.5-1Hz)
  - Filter cutoff variance (+/- 2%)
  - VCA decay time variance (+/- 2%)
  - Random oscillator phase for all triggers
- Ensured all exponential ramps target 0.001 instead of absolute 0.
- Adjusted DrumMachine routing to apply the "glue effect" by processing all
  individual drum outputs through a master compressor and saturation node.
- Updated default Euclidean patterns for an immediate rhythmic experience:
  - Kick: 16/4
  - Snare: 16/2 rot 4
  - Hi-Hat: 16/12
  - Open Hat: 16/2 rot 2
- Set the default kit to '909'.
- Verified pitch sweep ratios and fixed frequencies against research (e.g.,
  909 Kick 4.7x sweep, 808 Snare 238Hz/476Hz modes).

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