Norsonic has a wide range of sound level meters that covers the latest sound level meter standards; IEC 60651, IEC 60804, IEC 61672, IEC 61260, ANSI S1.4, ANSI S1.11, ANSI S1.43, DIN45657.
The Nor150 sound analyser offers a built-in signal generator for excitation of the source room level measurements or for excitation of the reverberation time measurements. The results are measured in accordance with the ISO 16283 Standard requirements. With additional background level measurement results, an on-board calculation of the final airborne sound insulation indices DnT and Rw in accordance with ISO 717 is performed. Of course, the similar possibility is available for impact sound insulation index Ln,w using a tapping machine such as the Nor277.
The reverberation time excitation may alternatively be based on an impulsive source. In any case, results for T15, T20 and T30 are calculated in parallel. The analysers are seamless integrated with the Nor850 software, either as a remote frontend to the Nor850 Measurement System, or as a manual measurement tool for exporting measurement files to the post processing Nor850 Reporting System. Complete calculation of airborne, facade and impact sound insulation indices in accordance with international and national Standards.
Building Acoustics- Upper frame shows Receiving room level with background noise. Running L/t in lower frame to evaluate if unwanted noise appears in the measurement.
Building acoustic – rating view 1, calculated sound insulation together with the single number index
Building acoustic – rating view 2, numerical table to present the single number index along with the spectrum adaption terms.
Building acoustic – rating view 3, all numerical results of the analysis plus a level overview graph.
Building acoustic – rating view 4, background noise vs. receiving room levels
Building acoustic – rating view, The # softkey toggles through specific source positions
Building acoustic – rating view, R’w rating
Building acoustic – RT view.
Two sample pictures out of several views offered for RT measurements.
Building acoustic – manual adaption of RT time is possible.
Features
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Reverberation time measurements with parallel calculation of T15, T20, T30, Tmax and EDT.
Ensemble averaging of reverberation decays.
Backward integration of reverberation decays based on impulse excitation.
User adjustment of individual RT decay lines.
Signal generator with white, pink or bandpass filtered noise.
Supports multiple microphone and loudspeaker positions with corresponding on-board energetic or arithmetic averaging.
Project overview with information about all individual measurement details and project progress.
Seamless integration with Nor850 reporting software.
Wireless single or dual channel measurements using one or two Nor145 controlled from Nor850.
Wireless control of the battery-operated power amplifier Nor282.
Rw calculation in accordance to national and international standards.
Supported standards
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ISO 16283-1:, ISO 16283-2:, ISO 16283-3, ISO 717-1, ISO 717-2:, ISO 10052
