Sound absorption coefficient measurement by extracting the first reflected wave in a short tube

Broadband measurement method for acoustic performance parameters of large sample materials

“…internal electro-acoustic performance parameters of the transducer in advance. In recent years, the broadband pulse method has been studied a lot [7,8,9] . These studies are mostly carried out in the acoustic tube, using the principle of inverse filtering, a stable broadband pulse is generated in the acoustic tube, and robust results can still be obtained in the low frequency band of 500-2000Hz measured in practice.…”