He selected . The "MP" stood for "Minimum Phase." It was a controversial choice among the purists on the forums. Linear phase was "perfect," they argued. But Elias knew that perfection was boring. Minimum phase introduced a tiny, microscopic sliver of pre-ringing—a mathematical echo that mimicked the behavior of analog instruments in a real room.
Uses impulse response files (typically .wav ) to apply complex room or headphone corrections. hqplayer equalizer