[nooga]

A pack for big, gnarly bass and guitar: Justice-style electro bass and the blog-house guitar chains people build in FL Studio from Guitar Rig, Distructor, Vintage Chorus, Hamburger and OTT. All the DSP is original. Hamburger (AGPL) was read for ideas only.

New machines

• Octaver (oct2): an analog-style divider (comparator plus flip-flops) for one and two octaves down.
  • SQUARE or OC-2-style FLIP subs, each with its own resonant lowpass.
  • GLITCH makes the divider chatter.
  • An Octavia-style rectified octave-up into fuzz.
• Wobble (wob2): an SVF (LP/BP/HP morph, 12/24 dB, self-oscillating) or an inductor-style wah.
  • Swept by an LFO (seven shapes, synced or free, retrig, stereo spread), 16 steps, the playing's envelope (auto-wah), or a pedal.
  • AMP turns it into a tremolo or gate.
  • Adds shared lfo.fy and follow.fy kernels.
• Folder (fold2): triangle-to-sine folds in up to four stages, with SYMM and DYN.
  • 4x oversampling plus ADAA: nonharmonics at −74 dB at full fold.
  • AUTO holds the level.
• Grinder (grind2): ten curves stacked up to four deep (OVERDRIVE, RAT, FUZZ, SOFT, HARD, FOLD, SINE, CUBE, RECT, DEAD).
  • Bias that follows the envelope, and mirrored emphasis EQ around the drive.
  • Zero-crossing sizzle, bass-driven flux, and phase distortion (self-modulated delay).
  • AUTO and CLIP on the output.

Changes to existing machines

• Multi: RATIO up to 100 and UP up to 1.5 (4:1 upward), plus an OTT preset.
• Chorus: FEEDBACK, WET HP and INVERT, for choking a distorted bass. All three default off and are bit-exact there.
• Char: a Supercharge preset.

Rigs and demo

• Twelve FX Rack rigs under harsh/, generated by tools/rigs/harsh.py. Each opens folded to named macros and is level-matched to bypass within 1.5 dB:
  • Wobble Oktaver and Sandwich (the two reference chains, plus Octavia Portal)
  • Kodiak and Cross Bass
  • Phantom Stack, Gated Fuzz, Ring Growl and OTT Sandwich
  • Four Slot, Bit Guitar and Royal Split
• slabkit can turn a preset rig's macros: fx("fxrack", "harsh/kodiak", rk_m2=0.6).
• songs/kodiak_club.py: a 118 BPM French-touch demo.
  • A Juno bass through Cross Bass, a slap bass chopped by Grinder and a step gate.
  • Hot 909-style drums with everything ducking to the kick.
  • An Octavia guitar riff and a Kodiak layer in the drops.
  • −14 LUFS; bands are sub 27%, low 41%, low-mid 20%.

Testing

• zig build test: 527/527 passed.
• zig build bench -- --all --check:
  • Every existing golden is bit-exact except Multi's. Its goldens differ by about an ulp (−150 dBFS) because the bench sets the default ratio through the knob's norm and the range changed. Projects store real values and are unaffected.
  • Goldens are recorded for the four new machines.
  • shift2, resonator2, buffer2 and phaser2 have no goldens on master either.
• Measured on the bench: Octaver tracking on a 41–196 Hz bass phrase, Folder's aliasing, Grinder's per-curve signatures, Wobble's self-oscillation.
• Rig levels and the demo mix were checked with headless renders and stem reports. None of it has been heard in the app yet.

🤖 Generated with Claude Code

[nooga]

I analyzed the demo track by track: each one rendered stage by stage, with waveforms, spectrograms, band energy, gap share and crest. Fixes:

• Grinder and Folder AUTO followed a fast envelope, so it put the dry note's decay back onto the distortion and killed its sustain. It now matches held peaks (5 ms attack, 1 s release) and holds through silence.
• Grinder SIZZLE could be louder than the signal. It buried the guitar in Octavia Portal under broadband noise. It's now confined to a window around each zero crossing.
• Distortion tone presets moved from 4.5–7 kHz to 9–12 kHz.
• Cross Bass loses its tape stage, and its amp gets more treble and presence.
• Kodiak's OTT is mixed in at 0.45, with a soft clip after it to catch the onset spikes.
• Kodiak Club:
  • The Junos were at 16', which put the bass at 23 Hz. They're now at 8', with held notes.
  • The slap's step gate is gone.
  • Only the bass and stabs duck to the kick, and more gently.
• docs/33 gains a section on checking where a bass really sounds.

Results:

• In the drop, the bass's silent share went from 50% to 0%. Its lowest peak went from 15 Hz to 73 Hz.
• The stabs are now dense and flat out to 10 kHz.
• In the app the demo sounds much better.
• zig build test passes. Every bench golden is unchanged except grind2 and fold2, which I re-recorded.

🤖 Generated with Claude Code