Nor275: 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. When used with the power amplifier Nor280, the high sound power level ensures accurate descriptors in measurement conditions that include high background levels, high sound insulation properties and large room volumes. [...]

Nor280: Power Amplifier Our aim is to take the latest technology available to help our customers complete their measurements faster but without loss of precision. The Nor280 power amplifier is the 4th generation of specially designed units for building acoustic measurements from Norsonic. Feauters: Specially designed for Building Acoustic measurements Lightweight and rugged construction – [...]

Nor279: 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. Fulfill the requirements for a “standard heavy impact source” as given in the Japanese JIS A 1418-2:2000 Standard for impact sound insulation. Features: [...]

Nor278: 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. The reference sound source Nor278 is designed to produce a stable and uniform sound power output with unique [...]

Nor277: Tapping Machine For making footfall noise transmission measurements in buildings as set out in International and National Standards. Impact sound transmission testing according to ISO 10140-5. ISO 16283-2 and the old ISO 140-6, -7,-8 as well as ASTM E492-04 and ASTM E1007-04e1 Determination of single number quantity index Ln,w, in accordance with ISO 717-2 [...]

Nor276: 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. It is designed to be used with Nor280 Power Amplifier only. Using other amplifiers may damage the speakers and will void the warranty. The dimension is [...]

Nor1216/1217/1218 Outdoor Microphones Nor1216 outdoor microphone for permanent installations Nor1217/1218 outdoor microphones for semi-permanent installations Outdoor microphone for community and aircraft noise. Fulfils IEC 60651, IEC 61672 class 1 and ANSI S1.4 type 1. Protection class IP 55 (dust and water). Easy to calibrate with a normal ½” sound calibrator. The outdoor microphones Nor1216, Nor1217 [...]

Noise Sources Norsonic 283 Surpasses all previous dodecahedron speakers! It shines with its low weight, small design and impressive sound power level at low frequencies. The output level of the battery-powered Nor282 power amplifier is an impressive 123 dB LW. 5.3 kg - 123 dB Lw !Read more Norsonic 275 Hemi-Dodecahedron Loudspeaker A powerful sound [...]

Room Acoustics The room acoustics is concerned with the impact of the structural conditions of a room and sound events held in it. Task of room acoustics, it is primarily to affect the acoustic properties of a room so that the acoustic properties suit well with its intended purpose. The acoustic is of great importance [...]

Building Acoustic The building acoustics deals with sound propagation between rooms within a building respectively from outdoors into the room. The transmission of the sound takes place by emission of airborne noise from the vibrating building structures. Besides the traditional fields airborne sound insulation (sound) and impact sound insulation (sound insulation), the entire area of [...]