Why do I need acoustic advice, and why should I spend money on it?
Why do I need acoustic advice, and why should I spend money on it? You are right. Acoustic advice involves costs, as you benefit from our extensive know-how and experience in the area of acoustics and sound. Prices for a regular one-off measurement and or advice and develop special acoustics (music or speech) for an auditorium, a church, a concert hall or a sound studio- differ please contact us for an estimate.
Single measurement of reverberation time:
Repeated measurements of reverberation time:
We provide you with an acoustic solution that guarantees 100% satisfaction regarding the visual as well as the acoustical result. In most cases, the costs of the measurement can be partly or fully deducted from value of the later order.
The amount of sound that needs to be “absorbed” by a room depends on the results of our measurements as well as your personal expectations.
Our recommendations always respect the valid NEN and ISO standards as well as, depending on the type of room, the acoustic directives of consulting firms or well-known acoustic experts, such as Leo L. Beranek. It is always a pleasure for us show our clients what results can be achieved by our measures.
After the measurement, they often tell us how much they have learned during the day, when we work with demo absorptions areas of 8 to 12 m2.
When measuring the acoustics in a room, the starting position is influenced considerably by its absorption capacity as well as its volume. By using an empirical equation developed by Sabine in 1895, we can calculate the length of the reverberation time in seconds:
T Reverberation time (s)
V Volume of the room (m3)
α Absorption degree of the material (m2 Sabine)
αi aAbsorption coefficient of the area i
Si total surface area i (m2)
The reverberation time also depends (via the absorption α) on the frequency of the reverberating sound. Consequently, the reverberation time of a room is not a fixed value.
Based on the materials that are used in a room as well as its size, we can calculate the reverberation time.
When we deal with an existing room, this calculation needs to be done first, as the results serve as a basis for the calculation of the absorption area that needs to be added.
By using demo panels, we are able to illustrate how the acoustic in a room can be improved