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Sound Power (ISO3671 + ISO3744-46)

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Sound Power using multiple Microphones and Cables

Real-Time Calculation Method

Multi-Channel Data Acquisition Devices + SAMURAI + Option: Live Sound Power by SINUS Messtechnik GmbH

Calculation of sound power levels in real time using a multi-channel data acquisition system and SAMURAI Software Option: Live Sound Power.

General principle:

Calculate the power average of all channels and determine the emitted live sound power respecting the measurement area and corrections K1, and K2


  • Calculation in 1/3, 1/n or single sum level
  • Corrections:
    • Background noise K1
    • Environmental K2 (methods: approx., reverberation or absolute comparison)

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