Profile
- Research and development on metrology in applied acoustics
- New and further development of methods for the measurement of acoustic indicators such as sound power, sound absorption and sound reduction index
- Experimental, numerical and analytical investigations on the uncertainty of acoustic quantities
- Realisation and dissemination of the unit for the quantity airborne sound power
- Quality control in applied acoustics, among other things by organisation and participation in interlaboratory tests
- Protection of public and PTB interest in (standardisation) committees
Research/Development
- Uncertainty for the measurement of sound absorption in reverberation rooms
A compact measurement setup for the determination of the impact sound reduction of floor coverings
Can the sound reduction index of buildings also be applied to low frequencies?
Diffuse-field reciprocity calibration of measurement microphones
Installation noise measurements according to the new standard lead to values 2 dB larger on average
Extending the frequency range does not increase the uncertainty of single number values in building acoustics
- Uncertainty of sound power levels
Scale model measurements of the sound emissions of supermarkets
Services
- Calibration of reference sound sources
- Testing of standard tapping machines
- Testing of loudspeakers for measurements in building acoustics
- Sound absorption measurements
- Flow resistivity measurements
- Specific measurements (Qualification of anechoic rooms, reverberation rooms and building acoustics test facilities)
Information
Specific test facilities
- Hemi-anechoic room
- Non-rectangular reverberation room
- Rectangular reverberation room
- Window testing facility
- Wall testing facility
- Floor testing facility with standard concrete floor
- Floor testing facility with standard timber floor
- Test facility for lightweight constructions