Frequently asked questions.
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What is reverberation?
Reverberation is the persistent sound you hear after the original sound source has stopped. This phenomenon can be disturbing, especially in rooms where human speech is the primary sound source.
At Triplacoustics, all our products are designed to significantly reduce reverberation caused by human speech. Our advanced acoustic panels effectively absorb sound, resulting in a clearer and more pleasant sound environment. -
How is reverberation time measured?
T60 or RT60 is the measure of reverberation and represents the time it takes for the sound level to drop by 60 decibels after the sound source has stopped.
At Triplacoustics, we can calculate the exact reverberation time in a room using simple or complex acoustic calculation models. This is possible because all absorption values for each third octave band are measured in our laboratory.
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What is the formula of Sabine?
Sabine's formula is used to calculate the reverberation time (RT60) of a room. This time is directly proportional to the volume of the room and inversely proportional to the amount and performance of the absorbing material. The formula reads: RT60 = V / 6 x ∑(Ai x αi).
At Triplacoustics, we use a simplified calculation model based on Sabine's formula for reverberation calculations in simple, rectangular rooms. For more complex calculations in larger rooms, all test data of our products are available to acoustic study agencies. This is how we ensure accurate acoustic analyses and optimal solutions.
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What types of materials are there for reverberation correction in a room?
Reverberation correction in a room can be achieved by using absorbent and scattering surfaces on walls, ceilings, furniture or other objects in the room. These materials can be porous and light (absorb high frequencies), perforated sheets (such as Triplacoustics' Helmholtz panels, which absorb mid frequencies), or panel resonators (thin sheets that vibrate and absorb low frequencies).
Triplacoustics products are high-quality Helmholtz absorbers designed to effectively absorb mid-frequency sounds to improve the acoustic quality in any room.
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What is optimal reverberation time?
The optimum reverberation time varies depending on the type of room and its intended use. Different spaces require different reverberation times to achieve the desired acoustic quality.
At Triplacoustics, we customise our products based on these specific requirements. For concert halls, a mix of long and short reverberation times is ideal for a rich music experience. In contrast, open-plan offices benefit from short reverberation times to ensure very good speech intelligibility. Our high-quality absorptive panels ensure that every room has the optimum reverberation time, tailored to the specific use and acoustic needs.