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Noise Sources

Noise Sources


Norsonic 275

Hemi-Dodecahedron Loudspeaker

A powerful sound source designed for building acoustics measurements per ISO-140/4 Annex A (Field measurements). The source provides uniform sound radiation.

Norsonic 276

Dodecahedron Loudspeaker

The Nor276 is a high power loudspeaker with omni-directional characteristics. The Nor276 has been designed for continuous operation for more than one hour at full power.


Norsonic 277

Tapping Machine

For making footfall noise transmission measurements in buildings as set out in International and National Standards.

Norsonic 278

Reference sound source for Sound Power measurements

The rugged and compact design makes it well suited for both laboratory and field use. The design ensures a stable and uniform sound power output with unique long-term stability.


Norsonic 279

Impact ball

To be used as the “Rubber Ball “ alternative to the Tapping Machine Excitation method in accordance with the ISO 16283-2 Appendix A.2 and the ISO 10140-5 Appendix F.2.

Norsonic 280

Power Amplifier

Our aim is to take the latest technology available to help our customers complete their measurements faster but without loss of precision.

Small Tapping Machine

Small Tapping Machine

The small tapping machine system Gösele is a seismic source, which is based on the periodic impact of a moving mass.

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