Blog Categories

Category Archives: Acoustics

Early Reflections 101

One of the most common “generic” acoustic treatment recommendations is to treat the reflection points. Unfortunately properly managing early reflected sounds is actually very complex psychoacoustically. Blindly treating reflection points with the wrong kind of products can make your sound worse. For a high performance high-end audio listening room, home recording studio or home theater [...]

Ten articles on subwoofers you probably haven’t read

Here are ten great articles on subwoofers that you may not have read. These articles cover a whole range of subjects, from the acoustic benefits of multiple subs to the use of equalization to improve your bass. Enjoy!   From Acoustic Frontiers: Subwoofer Setup 101: Subwoofer Crossover Frequency, Slope and Phase for Two Channel Systems [...]

Understanding small room reverberation time measurements

This article explains how to interpret T60 and other variants of mid and high frequency decay / reverberation time measurements in the context of small rooms like home theaters, listening rooms and recording studios. Note that a lot of things written about T60, both online and in text books, are written in respect to acoustically [...]

Room Acoustic Measurements 101

This article is intended to provide an overview of room acoustic measurements and how they are used to evaluate the extent to which your room is causing acoustic distortions that are degrading your sound quality. The key questions answered are: What are the key room acoustic measurements? What different room acoustic measurement tools are there? [...]

What is Speaker Boundary Interference?

Speaker boundary interference response (SBIR for short) is a little known and poorly understood issue that is responsible for deep dips or “suckouts” in bass response below the transition frequency. SBIR is caused by the destructive interaction of the direct sound wave from the speaker and the reflected, indirect sound wave from a nearby boundary. [...]

A Home Theater Acoustic Treatment Layout in North Carolina

Client Profile Mr. Gilman is a home theater enthusiast from North Carolina. Project Overview The project scope involved a complete overhaul of Mr. Gilman’s previous home theater including: Revising the layout Raising the ceiling Building new soffits to hide ductwork Building a new riser New equipment, including an acoustically transparent screen, ‘proper’ home theater speakers [...]