Low Frequency Control in a Home Cinema - August 28th, 2008
Small spaces like a home cinema room, often has a poor low frequency response, emphasised at certain frequencies. These frequencies are determined from the dimensions of the room. In an acoustically demanding home cinema room, we need to address these issues from the early stages of design.
Any porous absorption like fibreglass wouldn’t really help at these modal frequencies in the cinema room. Particle velocity of these low frequencies is zero next to the boundaries. That would mean a home cinema design with really deep porous absorbers; that approach would take too much space from the room.
We include custom resonant absorbers in every dedicated home cinema room we design. It is a custom way of managing modal frequencies, and it can be a very accurate too. These resonant absorbers are based on the principle of a mass vibrating against a spring with damping.
The properly designed and engineered home cinema room will offer a much smoother frequency response, and in other words, a very pleasant experience.