Contact

Secratary's Office

+49 (0)441 798-3003

+49 (0)441 798-3698

W2-1-169

How to get here

Mailing adress

Carl von Ossietzky University
Department of Medical Physics and Acoustics
Acoustics Group
26111 Oldenburg

Visitors

Carl von Ossietzky University
Department of Medical Physics and Acoustics
Acoustics Group
Carl-von-Ossietzky-Str. 9-11
26129 Oldenburg

Low Frequency Lab

Low Frequency Lab

The investigation of human sound perception (e.g. the determination of equal level loudness contours) at low frequencies requires high sound pressure level that cannot be obtained in a large anechoic chamber with reasonable sized loudspeakers. Therefore, a small room excited by two 18" loudspeakers is used as a pressure chamber to reproduce low frequency sound down to a few Hertz. The room has a very low background noise level of about 21 dB(A) and an average reverberation time of 0.2 seconds. The room is outfitted with a small vibration plattform, which can be used to present vertical whole-body vibrations.

The room was used in the EU-project RUMBLE to accurately reproduce low sonic boom signatures.

Scheme of the technical setup of the low frequency lab.

(Changed: 2021-04-30)