数字音频测听室的声学设计  

Acoustical design of digital audio laboratory

作　　者：蒋国荣[1] 

机构地区：[1]同济大学声学研究所,上海200092

出　　处：《声学技术》2004年第4期250-252,共3页Technical Acoustics

摘　　要：本文介绍了小型数字音频测听室的音质要求及声学设计方法。根据小房间中声场的特点着重对混响时间 的频率特性及扩散等声学要求进行了设计。为满足数字音频试验对信噪比的要求,设计中采用了综合降噪措施降 低测听室内的本底噪声。现场声学测试及主观评价结果表明测听室音质达到了设计要求。Acoustical requirements and the design approach of a digital audio laboratory is presented in this paper. The main efforts are given to frequency spectrum of reverberation and sound field diffusion due to the special acoustic characteristics of a small room. Noise abatement measures are taken to achieve a low level of background noise. Field measurements and subjective evaluation show that acoustics in the digital audio labratory has the desired effects.

关 键 词：测听 本底 声学测试 要求 降低 室内 噪声 数字音频 音质 现场声 

分 类 号：O422[理学—声学] R764[理学—物理]