Techint & Articles

Is the Lab Testing Data Realistic?

Each manufacturer of sound-proof chambers, sound insulation materials and sound absorbers specify their sound ...

Additional Customization

Sonora Project for Anechoic Chambers and Soundproof RoomsIn addition to being a soundproofing equipment manufa...

Sonora Technology’s Development Policy

Sonora Technology has developed various types of products based on its own technology over the past 20 years. ...

Problems with urethane sound absorbing materials

Degradation over time of polyurethane sponge The photograph here shows an example where polyurethane sound-abs...

Tokyo, JAPAN / 東京, 日本

The head office of Sonora Technology is located in Tokyo, Japan. Our factory is in Gotemba City, at the southe...

New Technology for Anechoic Chamber silencers?

Have you seen a muffler attached to the exhaust of a motorcycle before ? There’s a significant size difference...

Needless to say, no need for anechoic chambers to be surrounded by the rear-side air layer!

In general, the conventional construction methods for an anechoic chamber involve installing a “rear-side soun...

Expectation vs. Reality in design methods for acoustic anechoic chambers based on ISO3745:2012

The design methods for anechoic chambers are specified in the International Standard, ISO 3745:2003 -Annex K3 ...

The principle of mass does not serve as the basis for calculating sound insulation

To achieve soundproofing, heavy materials must be used. This is often said, but it is based on the principle o...

ISO 20908:2023 – Tyre sound emission test

ISO 20908:2023 – tyre sound emission test was published in 2023 as a method of indoor noise testing. ISO...