Category Archives: Articles

What Are Room Modes

Bass trapping first reflections in front of room

Treating Room Modes Room modes are caused by sound reflecting off of various room surfaces. There are three types of modes in a room: axial, tangential, and oblique. Modal activity occurs at frequencies which are directly related to the dimensions of the room. Axial modes are the strongest and many times, the only ones that […]

Room Setup Case Study

The following room setup case study was designed to illustrate how a typical room can be tested, designed and acoustically treated to achieve the best sound quality possible. The Room: – 13’7”W x 14’4”L x 8’H – 12’W x 5’H windows on the back wall and left wall – 6’W x 7’H sliding glass door […]

Early Reflection Points

Early reflection points, first reflection points, or “mirror point” are semi-technical terms used to describe a phenomenon common to all enclosed spaces no matter the size:  direct sound from the loudspeakers will arrive at the listener’s ears before the reflected sound does. How to find first reflection points Early reflections are signals that have bounced […]

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