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Acoustic enclosures












1.1 What is sound ?
1.2 What is a decibel (dB) ?
1.3 How is sound measured ?
1.4 What does dB(A) or "A-Weighted" mean ?
1.5 How do sound levels add ?
1.6 How is sound power measured ?
1.7 At what level does sound become unsafe ?





2.1 What is vibration ?
2.2 How is vibration measured ?
2.3 How is vibration isolated and controlled ?



3.1 What is reverberation time ?
3.2 What is the sound absorption coefficient ?
3.3 What is the difference between insulation & absorption ?
3.4 How is sound insulation measured ?
3.5 How do i improve the noise insulation of my house/dwelling ?
































Our Products

News & Events
The Polycarbonate Noise Barriers' work was completed by Envirotech in a good manner and also according to our specifications.
Shree Cement Limited  ....

Acoustic Enclosure supplied by Envirotech, has fulfilled CPCB Norms without affecting DG set performance.
PepsiCo India Holding Pvt. Ltd  ....

The Noise Test Booth designed by Envirotech (ESL) has acieved the desired noise level i.e 35 dB(A) in side the chamber.
Maruti Suzuki Limited  ....

The design of Anechoic Chamber has fulfill our requirement & no echo generation was found inside the chamber .
Dongyong  ....


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