Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe unter http://asonad.de, März 2002
Helmholtz resonator – SOUNDBLOX Type N2-X
Original description
Asona Soundblox Helmholtz resonator Type N2-X
ISO 354 – reverberation chamber
αp nach ISO 11654
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Method (354): Measured
