对会场扩声与补声的理解

The Understanding of Sound Reinforcement and Supplementary Sound in the Venue

从语言清晰度来讲,扩声并非单纯加大声压级,而是有效控制扩声系统,改善声场不均匀度,提高信噪比,保持听音声压级在70dB左右,达到最高语言清晰度。本文以教学扩声系统为例来阐述对会场扩声与补声的理解。

In terms of speech articulation.sound reinforcement is not merely to increase the sound pressure level,but to effctively control the sound reinforcement system,improve the sound field unevenness,improve the signal-to-noise ratio,and keep the sound pressure level of listening at about 70dB.Taking the teaching sound reinforcement system as an example,this paper elaborates the understanding of sound reinforcement and supplenentary sound.