The process of soundproofing involves two types of sound energy. It involves the sound energy produced in the room. It also involves the sound energy generated from outside the room by various sources. We want to reduce the energy levels from sources within the room and we want to provide the necessary barrier to noise levels outside the room. We want to hear the sound from our hi-fi- system and not disturb our neighbors. We do not want to hear the traffic outside our room when we are sitting inside. Soundproofing is the process we use to address these acoustical issues.
The ACDA Series Of Soundproofing Solutions Engineered By Acoustic Fields
Soundproofing the energy within our room deals with low frequency or bass energy and also middle and high frequency energy. Bass energy requires that one use low frequency absorbing technology in a freestanding unit or built into the room walls themselves. Middle and high frequency soundproofing issues can be dealt with foams and different blends of absorbing material types. It is important to understand where the noise issues are, how large they are and what other areas does the sound energy affect.
Low Frequency Absorption
One must use low frequency or bass absorbers to absorb excess bass energy that has the necessary rates and levels of the proper low frequency to accomplish this task. Most companies claim they absorb low frequency energy but most do not. Most raise the frequency they consider to be low frequency. We have seen companies call 125 Hz. a low frequency. It is not. Our definition of low frequency at Acoustic fields is any energy found below 100Hz. The frequency range of 30 Hz. – 50 Hz. is problematic in over 95% of the rooms we have tested. A low frequency absorber must go down into this range to have any impact on soundproofing. One must also be able to absorb from 30 Hz. – 100 Hz. in a more broadband rate and level to compensate for the remaining low frequency energy. Our ACDA – 10 and ACDA – 12 units were designed with these low frequencies squarely in site.
The Absorber Wall Series Of Soundproofing Solutions Engineered By Acoustic Fields
Our proprietary foam can handle the middle and high frequencies in a smooth and even pattern from within the room. Our PFP series of foams has four thicknesses to satisfy any acoustical absorptive objective. All foam technology is packaged in a hardwood frame and fabric covered box. Our PFP and Absorber wall activated carbon technology can assist us here.
External noise control is best dealt with through barrier technology. A barrier is constructed of materials that were selected to work together in an acoustical manner that block out a lot of noise from outside. Concrete and foam are common barrier technologies and their application is a complicated process and must be dealt with carefully. Consult our barrier technology section for more information.