Colour FX Rack

Filter VST - DJM A9 Color FX Rack

This is a VST3 audio plugin that recreates the Color FX functionality from the Pioneer DJM-A9 mixer. It's built using the JUCE framework and provides six different audio effects modes in a single plugin interface.

Key Features:

Six Effect Modes:

1. SPACE - Reverb effect with tempo-synced delay times and color-based EQ tilt

2. DUB ECHO - Tempo-synced delay with frequency focus and degradation

3. SWEEP - Notch/band-pass filter sweep with morphing bandwidth

4. NOISE - Generated noise layer with resonant filtering

5. CRUSH - Bit depth and sample rate reduction with optional high-pass filtering

6. FILTER - Low-pass and high-pass filtering with resonance control

Core Controls:

- Color Knob - Main control that affects the character of each effect (-1.0 to +1.0)

- Parameter Knob - Secondary control that varies by mode (resonance, feedback, etc.)

- Mix Knob - Wet/dry blend control (0.0 to 1.0)

- Power Toggle - On/off switch

- Mode Selector Buttons - Six buttons to switch between effect types

Technical Specifications:

- Built with JUCE 7 framework

- Supports VST3 and Standalone formats

- Real-time audio processing with ultra-fast response (~1ms)

- Equal-power dry/wet crossfading

- Smooth parameter interpolation

- Professional DJM-A9-inspired dark metallic UI design

Audio Processing:

- Multi-channel support (stereo/mono)

- State-variable filters for smooth frequency responses

- Delay buffers for reverb and echo effects

- Noise generation with pink noise characteristics

- Bit-depth and sample-rate reduction algorithms

- Resonant filtering with morphing characteristics

The plugin is designed to provide the same creative sound-shaping capabilities as the original DJM-A9 mixer's Color FX section, making it perfect for DJs, producers, and audio engineers who want to add these signature effects to their digital audio workstation.