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Plumage

Product catalog summary

Introduction to Acoustic Performance:
Noise is defined as an unwanted and disturbing sound, such as the buzzing from a moving car or a drill. Acoustic comfort refers to the psychophysical wellbeing experienced in an environment where noise is limited. The Reverberation Time (RT60) is a key measure of acoustic comfort, indicating the time required for sound to become imperceptible. High reverberation times are associated with noisy environments, often due to reflective materials or irregular shapes.

Measuring Acoustic Efficiency:
The efficiency of sound-absorbing objects is determined by measuring the RT60 in an environment both with and without these objects. The formula used is RT60 = 0.161 x (V/A), where V is the volume of the space and A is the cumulative Equivalent Sound Absorbing Area of all surfaces and objects. The Sound Absorption Coefficient (α) helps identify the sound-absorbing properties of materials, ranging from 0 (all sound reflected) to 1 (all sound absorbed).

Testing Environment and Results:
The Axolight lamps were tested in a room measuring 8m x 6m x 3.1m (150 m³). The RT60 was measured with varying frequencies, first without lamps, then with 1, 2, or 3 lamps. The reduction in sound was calculated based on these measurements.

Results Summary:

For Ø 180 cm lamps, the reduction in RT60 with 1, 2, and 3 lamps was significant, with up to 35.2% reduction with 3 lamps.
For Ø 120 cm lamps, the reduction was up to 19.3% with 3 lamps.
For Ø 80 cm lamps, the reduction was up to 12.7% with 3 lamps.

The Equivalent Sound Absorption Area (A) varied across frequencies, indicating the effectiveness of the lamps in absorbing sound.

Conclusion:
Introducing sound-absorbing objects like Axolight lamps can significantly reduce reverberation time, enhancing acoustic comfort without structural changes. The effectiveness varies with the number of lamps and their specific sound-absorbing properties.

Catalog excerpts

Acoustic performance Plumage

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From noise to acoustic comfort, how to do it? Noise is commonly identified as an unwanted and disturbing sound, for example buzzing (an incomprehensible and continuous hum) from a moving car, a drill, etc. Acoustic comfort is the psychophysical condition of wellbeing a person finds themselves in when they are in an environment where noise is limited. The measurement of Reverberation Time (RT60), or the time required for sound to become imperceptible, allows the acoustic comfort to be measured in any given environment: the higher the reverberation time, the greater the perception of sound. A setting...

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Where we tested our products? Vanessa Vivian to 1,67 Equivalent Sound Absorbing Area (A) The environment used to measure the sound-absorbing properties the Axolight lamps is shown below: The Reverberation Times of the room, with sounds of varying frequencies emitted from an audio source, were measured, first without acoustic lamps, then with 1, 2 or 3 lamps added at a time. This is how the reduction of sound in the room was calculated. Acoustic performance

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Lighting performance per lamp Acoustic performance Before Initial Reverberation Time (RT60) in s After Reduction of Reverberation Time (RT60) in % Equivalent Sound Absorption Area (A) in m2 per lamp FREQUENCY

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Lighting performance per lamp Lighting performance per lamp Acoustic performance Acoustic performance Initial Reverberation Time (RT60) in s Initial Reverberation Time (RT60) in s Reduction of Reverberation Time (RT60) in % Reduction of Reverberation Time (RT60) in % Equivalent Sound Absorption Area (A) in m2 per lamp Equivalent Sound Absorption Area (A) in m2 per lamp Acoustic performance

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