G+H Noise Control has clad a state-of-the-art semi-anechoic room for the acoustic test-ing of electric drive units in Poissy, France.

For the customer Nidec PSA emotors, specialised in the manufacture of automotive electric drive units, G+H Noise Control clad a semi-anechoic room for acoustic testing with modified ASONAD® wedge absorber tech-nology. In buildings, this technology provides very high sound reduction and keeps the noise/hindrance level to a very low range. The customer requirement was for an acoustic free field with a minimum radius of 2.2 m inside the room in the frequency range from 200 Hz to 12.5 kHz.

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