摘要
给出了手机和无绳电话扬声器装入腔体后的整体等效电路,讨论了手机和无绳电话上的腔体和辐射声孔等对频响曲线的影响。指出辐射声孔的开孔数量和开孔面积必须大于一定的阈值,后腔体积应尽可能加大,泄漏则应尽量减少。
The whole equivalent circuit of mobile-phone and/or wireless phone when speaker is fixed in cavity is given. The influences of cavity and radiation aperture on frequency response curve are discussed. It is pointed out that the number and area of apertures should exceed the threshold value. At the same time, the volume of back cavity should be as large as possible while the leakage should be as less as possible.
出处
《电声技术》
2007年第8期75-78,82,共5页
Audio Engineering
关键词
扬声器
等效电路
声腔
loudspeaker
equivalent circuit
cavity
