# Record card
14
Description
The invention is about the development of a device and its methodology for measuring the active and reactive sound intensity from the impedance computation. The active intensity is calculated directly in the frequency domain multiplying the complex impedance and power spectrum of the air particle velocity. A second line of post-processing is applied to obtain the overall complex sound intensity.
Thematic areas
ICT & Electronics / Sensor/multi-sensor technology, instrumentation
ICT & Electronics / Optics & Acoustic
Energy and environmental sustainability / Mechanical Engineering, Hydraulics, Vibration and Acoustic Engineering
Energy and environmental sustainability / Sensory
Measurement tools and Standards