Lärmbekämpfung

Suspended ceilings have an impact on sound insulations as well as on room acoustics. The suspension height, meaning the space between room ceiling and suspended ceiling, is an important parameter which influences both acoustical effects. According...

The development of speech intelligibility tests began over 80 years ago, originally for the needs of telephone technology. The initial aim was to test the quality of electro-acoustic transmission systems and routes. The indicator for this was the...

The poor room acoustics situation in many educational institutions has been criticized for years and has been the reason for the revision of the room acoustics standard DIN 18041 on several occasions. This is not only about speech intelligibility...