A collection of professional audio VST3/LV2 plugins built with JUCE.

Note: These plugins are developed with the assistance of AI tools. If that bothers you, these aren't for you.

Production Ready: 4K EQ, Multi-Comp, TapeMachine, Multi-Q, and Chord Analyzer are currently released and recommended for production use. All other plugins are in active development.

Classic British console EQ emulation featuring:

• 4-band parametric EQ (LF, LMF, HMF, HF) with color-coded knobs
• High-pass and low-pass filters
• Brown/Black variants (two console voicings)
• Advanced analog saturation modeling
• 2x/4x oversampling for anti-aliasing

Multi-mode compressor with seven classic compression styles plus 4-band multiband compression:

Compression Modes:

• Vintage Opto – Classic 1960s tube optical leveling amplifier. Program-dependent attack/release with smooth, musical compression. Features "Peak Reduction" and "Gain" controls with optional Limit mode.
• Vintage FET – Classic late-1960s FET limiting amplifier. All-discrete Class A design with ultra-fast attack times. Features "All Buttons" mode for extreme compression/distortion. Four ratio settings: 4:1, 8:1, 12:1, 20:1, plus All.
• Classic VCA – Fast, precise 1970s VCA compressor. Known for its punchy, aggressive character with soft-knee compression. Great for drums and percussive sources.
• Bus Compressor – Classic British console bus compressor. The quintessential mix bus glue with fixed attack/release detents and Auto release. 2:1, 4:1, and 10:1 ratios with that distinctive punchy character.
• Studio FET – Later revision FET limiter. Cleaner character with approximately 30% of the harmonic content of the vintage version. More controlled transient response.
• Studio VCA – Modern British dual VCA compressor. Clean, musical compression with RMS detection and soft knee. Excellent for vocals and mix bus applications.
• Digital – Transparent, mathematically precise digital compressor. Zero coloration with accurate peak/RMS detection. Ideal for surgical dynamics control where transparency is paramount.
• Multiband – 4-band multiband compressor with Linkwitz-Riley crossovers. Adjustable crossover frequencies, per-band threshold/ratio/attack/release/makeup, and solo buttons for each band.

Features: Sidechain HP filter (20-500Hz), sidechain low/high shelf EQ, auto-makeup gain, parallel mix, analog noise floor simulation, transformer emulation with mode-specific HF rolloff, 2x/4x oversampling, lookahead with true-peak detection.

Analog tape machine emulation featuring:

• Two tape machine models with distinct characters
• Four tape formulations: Type 456, GP9, Type 911, Type 250
• Tape speeds: 7.5, 15, 30 IPS
• Advanced saturation and hysteresis modeling
• Separate Wow & Flutter controls
• 15 factory presets across 5 categories (Subtle, Warm, Character, Lo-Fi, Mastering)
• Dual stereo VU meters with animated reels
• 2x/4x oversampling for alias-free processing

Universal EQ with multiple modes:

• Digital Mode: Clean 8-band parametric with color-coded bands, per-band M/S channel routing
• British Mode: Classic console EQ with two console voicings
• Tube Mode: Warm analog-style EQ with harmonic saturation
• Real-time FFT analyzer with pre/post display
• Q-coupling modes for natural EQ response
• Interactive graphic display with draggable points
• HQ mode with 2x oversampling

Real-time MIDI chord detection and music theory analysis:

• 45 chord patterns (triads, 7ths, extended, altered, sus, add)
• Roman numeral analysis in any key (major and minor)
• Harmonic function labels (Tonic, Subdominant, Dominant)
• Inversion detection with slash notation
• 3-tier chord suggestions (Basic, Intermediate, Advanced)
• Session recording with JSON export
• Two versions: instrument (FL Studio, Ableton) and FX (Reaper, Bitwig, Logic, Cubase, LV2)

Zero-latency IR-based reverb:

• Supports WAV, AIFF, AIFC, SDIR impulse responses
• Waveform display
• Size, pre-delay, damping, width, mix controls

Algorithmic reverb with 53 factory presets:

• Hadamard FDN, QuadTank, and Dattorro tank algorithms
• Per-preset tuned engine wrappers with corrective EQ
• Size, pre-delay, damping, modulation, and mix controls
• Early reflections with configurable patterns

Guitar amp simulator:

• Wave Digital Filter (WDF) circuit-modeled amp stages
• Neural Amp Modeler (NAM) integration for loading community amp profiles
• Procedural cabinet simulation

Professional FFT spectrum analyzer with metering:

• Real-time FFT spectrum display
• LUFS integrated and short-term metering
• True peak detection
• K-System metering (K-12, K-14, K-20)
• Stereo correlation meter
• Mid/Side and Left/Right channel routing

Classic tape delay with spring reverb:

• 12 echo modes
• Spring reverb modeling
• Tape saturation and wow/flutter
• Tempo sync with multiple note divisions
• Animated tape visualization

⚠️ Early development - not functional yet. ML-powered intelligent drum pattern generator:

• Pattern generation from Groove MIDI Dataset
• Groove humanization with micro-timing
• Context-aware fills
• Style classification

For consistent, distributable binaries:

# Build all plugins
./docker/build_release.sh

# Build a single plugin (production-ready)
./docker/build_release.sh 4keq         # 4K EQ
./docker/build_release.sh compressor   # Multi-Comp
./docker/build_release.sh tape         # TapeMachine
./docker/build_release.sh multiq       # Multi-Q
./docker/build_release.sh chord        # Chord Analyzer

# Build a single plugin (in development)
./docker/build_release.sh duskverb     # DuskVerb
./docker/build_release.sh spectrum     # Spectrum Analyzer
./docker/build_release.sh convolution  # Convolution Reverb
./docker/build_release.sh tapeecho     # Tape Echo
./docker/build_release.sh groovemind   # GrooveMind

# Show all available shortcuts
./docker/build_release.sh --help

./rebuild_all.sh              # Standard build
./rebuild_all.sh --fast       # Use ccache and ninja if available
./rebuild_all.sh --debug      # Debug build

cd build
# Production-ready
cmake --build . --target FourKEQ_All
cmake --build . --target MultiComp_All
cmake --build . --target TapeMachine_All
cmake --build . --target MultiQ_All
cmake --build . --target ChordAnalyzer_All

# In development
cmake --build . --target DuskVerb_All
cmake --build . --target SpectrumAnalyzer_All
cmake --build . --target ConvolutionReverb_All
cmake --build . --target TapeEcho_All
cmake --build . --target GrooveMind_All

• VST3 (Linux): ~/.vst3/
• LV2 (Linux): ~/.lv2/
• AU (macOS): ~/Library/Audio/Plug-Ins/Components/
• VST3 (macOS): ~/Library/Audio/Plug-Ins/VST3/
• VST3 (Windows): C:\Program Files\Common Files\VST3\

Location: plugins/shared/AnalogEmulation/

Reusable analog hardware emulation components:

• Transformer saturation modeling
• Vacuum tube emulation (12AX7, 12AT7, 12BH7, 6SN7)
• Waveshaper lookup tables (Opto, FET, VCA, Console, Tape, Triode)
• Hardware profiles for various compression and tape styles
• DC blocking filters
• High-frequency content estimation

• DuskLookAndFeel.h - Base look-and-feel for consistent styling
• LEDMeter.h/cpp - Shared LED-style level meter component

This project is licensed under the GNU General Public License v3.0.

Dusk Audio