keFIR is a zero latency, mono FIR filter plug-in designed to apply impulse responses from wave files. It allows adjustment of filter length up to 8,000 taps, providing detailed control over the filtering process. Users can blend the original input with the processed signal using the mix control, while the gain knob adjusts the output volume to suit various audio levels.

Primarily developed for cabinet emulation on guitar signals, keFIR offers a seamless experience for live performances and direct input recording without any delay. Its zero latency design ensures that musicians and producers can monitor their sound in real-time, maintaining the natural feel and timing during sessions.

Beyond guitar cabinet modeling, keFIR can process nearly any impulse response with any source signal, making it a flexible tool for sound shaping and creative audio processing. This broad capability allows users to experiment with diverse sound textures and effects, enhancing their audio production workflow.