Blue Cat’s Semi-Parametric Triple EQ

Blue Cat’s Triple EQ is a free, semi-parametric 3-band equalizer notable for its versatility and ease of use. It features a unique single-filter control system with customizable shape, allowing for seamless adjustments of low shelf, high shelf, and boost/cut peak filters. Its broad gain range (+/-40 dB per band) and bandwidth (.01 to 5 Octave) offer considerable flexibility.
The EQ provides a real-time frequency response display, dual-channel version for independent left/right or mid/side equalization, and no latency. It’s ideal for real-time MIDI or automation control, making it a practical choice for both amateur and professional audio workflows.