As we all know, the sound energy of natural sound sources (such as speech, musical instruments and singing, etc.) is very limited, and the sound pressure level attenuates rapidly with the increase of the propagation distance. Due to the influence of environmental noise, the propagation distance of sound source is reduced to shorter. So apart from the regular concert hall, the opera house and the theater, some public places can use acoustic technology to expand the sound, amplify the sound source, improve the sound pressure of the audience, and ensure that each audience can get the proper sound pressure level. The sound expansion system is a systematic engineering, involving a variety of subjects such as electronic technology, electroacoustic technology, sound building technology and acoustic art, as well as close coordination with video systems (multimedia projection and video systems), stage or dance hall lighting systems, fire broadcasting systems, paging broadcasting systems and security systems and other subsystems.
【DSPPA Demo】PAVA8000 EN54 Voice Evacuation SystemNovember 12, 2020Abstract: DSPPA PAVA8000 EN54 Voice Evacuation SystemToday, we are gonna show you a demo about our PAVA8000 EN54 Voice Evacuation System.PAVA8000EN54 Voice Evacuation System can not only support manua...view
The National Standard Approval Meeting held in BeijingJuly 19, 2019The National Standard Approval Meeting held in BeijingThe approval meeting of the National StandardTechnical standard of public address system engineeringis held in Beijing on July 16, 2019. Xue Chang...view
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