What is RT60 and why is it the main acoustic parameter

RT60 room acoustics is the time during which the sound energy in the room decreases by 60 times. This is a key acoustics parameter that directly affects sound quality. 360° Space Acoustic uses impulse response (Dirac function) for objective measurements and subjective perception. The standard Thiel–Small method (1965, sine signals) gives an efficiency of 1.5–5%, which is not enough for accurate measurements.

What's special about the RT60?

RT60 is the time during which the sound energy in the room decreases by 60 times. This means that if there is sound in the room, after 60 dB it will practically disappear. This time directly depends on the size of the room, its shape, materials used in construction, and other factors.

Why is RT60 so important?

RT60 is so important because it directly affects the sound quality in the room. If the RT60 is too large, the sound will distort and lose its clarity. If the RT60 is too small, the sound will decay too quickly and lose its fullness. Therefore, to achieve ideal sound, you need to find the optimal RT60 value.

How to measure RT60?

RT60 can be measured using a variety of methods, including impulse response (Dirac function). This method provides objective measurements and subjective perception of sound. 360° Space Acoustic uses this method to create ideal acoustics in rooms.

What affects RT60?

The RT60 is affected by many factors, including the size of the room, its shape, the materials used in construction, and other factors. For example, if the room has a large area and a high ceiling, then the RT60 will be larger than in a small room with a low ceiling.

If you want to create ideal acoustics in your room, then contact 360° Space Acoustic. We use impulse response (Dirac function) for objective measurements and subjective perception. Our experts will help you find the optimal RT60 value and create the perfect sound in your room.