Digital Room Correction using Parallel Second-order Filter-based Equalizer

Abstract

Room Acoustics matters. Producers in studio need to monitor every subtle detail in music. Every ordinary people wants excellent sound quality for their playback system to enjoy movies, music, TV broadcast, etc. However, if the room where the sound system is installed produces undesired acoustic effects (e.g. reverbration), these wishes could never come true, no matter how much money you invest in your electronic playback system. Bad room acoustics is a common problem in almost every realistic room. That is why we need extra calibration technologies to make up for the room acoustics, or to put it more specifically, the frequency response of the room. In this project, a Parallel second-order-based equalizer design method is deployed for loudspeaker-room correction.