One image-making method involves localizing a sound source using a microphone array. Here the sound-radiating surface of the test object is "scanned" (a technique called beamforming) and the measurement values are color-coded and superimposed on a live video image. The PAK-Software thus allows time-varying noise emissions to be graphically visualized.

Sound Power

A key variable of the source strength of a sound creator is the sound power. The PAK-Software supports the user in correctly determining the sound power in accordance with DIN EN ISO 3740 ff. in anechoic or semi-anechoic rooms (envelope method). It is also possible to identify the sound power in a reverberation test chamber using a known reverberation time, or to determine it by comparing it against a reference sound source with a known sound power (comparative method).

Sound Intensity

If a special test chamber is not available, the sound power can also be determined by measuring the sound intensity. The PAK-Software supports the use of different probes (pressure/pressure and pressure/particle velocity) and continuously checks all the principal sound field indicators. Not only that, but the emission behavior of the test object is also graphically visualized (sound field mapping).