Analysis software from our own development
A tool for screening long-term recordings that is open about its limits.
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Scientifically grounded articles from our assessment practice on infrasound, sound perception and the fundamentals of noise assessment. Each article is also available as a PDF download (in German).
A tool for screening long-term recordings that is open about its limits.
The revision of the standard for low-frequency noise has been discontinued. What the NALS annual report 2025 means in practice for expert assessments.
From sound pressure to rating level: how the ear processes sound, and how measures such as the LAeq technically reproduce this highly non-linear processing.
A self-experiment with an infinite-baffle loudspeaker: at what level does a 5 Hz tone become perceptible, and why does a pulsed signal lower the threshold by 20 dB?
Stimulus and sensation: how the hearing threshold is determined experimentally, and why the threshold of tactile perception also matters for infrasound.
What is infrasound, how does it affect people, and how much does it decrease with distance? An overview of studies and measurement data.