Broadband absorber
Broadband absorbers are acoustic components that primarily serve to protect against noise . They absorb sound in a wide range of frequencies from e.g. B. 300 Hertz to 5 Kilohertz with an absorption coefficient α> 85%. You will u. a. Used in open plan offices , restaurants, foyers , recording studios , etc. Due to their broadband absorption behavior, they are able to absorb effectively in the important frequency range of human speech (300 Hz to 4 kHz) and to avoid reflections. In this way, speech intelligibility in rooms can be efficiently improved.
In the acoustics industry, sound absorbers that have a smaller frequency spectrum or a lower degree of absorption are often wrongly sold as broadband absorbers.