Measuring and Optimizing Sound Systems




Professional speaker systems are acoustically influenced by the environment.


Complex sound systems should be adapted to each other and adjusted according to the application.


Calibration and Testing (Surround, Cinema)




Cinema, respectively surround installations should offer an excellent sound experience.


The Meyer Sound EXP (Cine-Studio Series) speakers deliver phenomenally good sound with perfectly tuned speakers.


With the NTi-Audio XL2 (Audio Analyzer) we have a professional measurement solution for the efficient calibration and periodic quality control of Cinema speaker systems.


Speech Intelligibility STIPA

Measurement of speech intelligibility of conference systems, announcement systems and evacuation systems.

Live Sound



Compliance with legal sound level limits.


The NTI-Audio XL2 Audio and Acoustic Analyzer helps to comply with regulatory requirements for monitoring events according to DIN15905 & SLV.


Environmental Noise Measurement


Measurements and monitoring of noise in the neighborhood, on the construction site, etc.


Noise recording | Sound level monitoring and documentation


 Sound M. Keller, Mandacherstrasse 1, 5234 Villigen, Switzerland  |   +41 56 284 06 79  |