VST plugin with zero latency and FIR-filter keFIR was designed for VST plug-in with zero latency and FIR-based filter impulse responses zagruzhamyh of audio files. Length of the filter can be set to a maximum of 32K. Regulators for mixing input with output, «gain» knob adjust the output volume level, “length” knob setting filter length (you can also specify the length, right-click on the impulse response).