Building Acoustics Sound Sources

From Directional and Omnidirectional Sound Sources to Tapping Machines

Larson Davis offers a range of sound sources and accessories for use in building and room acoustics measurements. Find the right solution below for your application.

  • BAS001 omnidirectional dodecahedron sound source for building and room acoustics

    Omnidirectional Sound Source

    Model BAS001

    The BAS001 Source is designed to generate omnidirectional sound fields for making standard compliant measurements including: reverberation time (ISO 3382, ASTM E2235), building acoustics (insertion loss, acoustic absorption area, etc: ISO 140-4 ISO 140-3, ASTM E336, ASTM E90, DIN 55 210). 

  • BAS003 directional sound source for building acoustics

    Directional Sound Source

    Model BAS003

    The BAS003 Directional Sound Source is designed to generate homogeneous sound fields using random noise in compliance with the following standards: Building acoustics (insertion loss, acoustic absorption area, etc: ISO 140-3, ASTM E90, ISO 140-5, ASTM E966).

  • BAS002 building acoustics amplifier

    Building Acoustics Sound Source Amplifier

    Model BAS002

    When coupled with the BAS001 Omnidirectional Speaker or BAS003 Directional Speaker, the BAS002 Amplifier is the ideal sound source for making room and building acoustics measurements. 

  • BAS004 impact noise source tapping machine for sound insulation measurements in buildings

    Tapping Machine for Impact Noise Excitation

    Model BAS004

    The BAS004 is used to simulate foot fall noise in a manner that is well controlled and reproducible so that measured results can be replicated and compared with other measurements.

  • BAS006 impulsive sound source for reverberation time measurements in buildings

    Impulsive Noise Source

    Model BAS006

    The BAS006 is an innovative device used to create impulsive noise that includes low frequency energy and avoids problems like secondary bounce.

  • 831-RT reverberation time sound level meter

    Reverberation Time Sound Level Meter

    Model 831-RT

    Whether for performance venues, architectural measurements or work-place acoustics, reverberation time is a key parameter for characterizing a room. A long reverberation time can make speech less intelligible and music can become garbled. Too short a reverberation time can muffle speech and make a room sound “thin”. Model 831-RT Sound Level Meter offers reverberation measurement and calculation functionality.