扬声器音质测试系统的设计  

Design of Speaker Sound Quality Test System

作　　者：郭金柱[1,2] 马晓建[1,2] 张侃旻[1,2] 

机构地区：[1]东华大学机械工程学院,上海201620 [2]东华大学纺织装备教育部工程研究中心,上海201620

出　　处：《电声技术》2010年第9期30-33,共4页Audio Engineering

摘　　要：针对目前扬声器音质测试系统存在的功能、价格等方面的问题,设计了一种扬声器音质测试系统。该系统采用DSP设计信号发生器,使用数据采集卡对声波信号进行采集,利用计算机进行信号分析与特征提取,并根据特征参数对扬声器的音质进行判断。该系统除可以测试扬声器的各项传统指标外,还可进行纯音检测。该系统可靠、稳定,具有较高的性价比。Considering the deficiency of the present loudspeaker sound quality test system on function and price, a loudspeaker sound quality test system is introduced. The DSP is used to design the signal generator, the data acquisition card is used to collect acoustic signals, and the computer is used to carry out signal analysis and feature extraction. The sound quality of the loudspeaker is judged according to feature parameters. Besides the traditional indicators, this system can detect pure tone. The system is reliable, stable, and economic.

关 键 词：扬声器 音质测试 MCBSP 信号发生器 数据采集卡 

分 类 号：TN643[电子电信—电路与系统]