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一、引言在评价扬声器重放音质的许多参数中,瞬态特性是最难测量的参数之一。而扬声器瞬态特性好坏,对语言清晰度、音乐保真度和临场感有很大影响。为了评价和改善扬声器的质量,应当了解和测试扬声器的瞬态特性,为了满足科研需要和扬声器测试要求,我们在本所(64年)试制的同类产品基础上,研制出801型扬声器瞬态特性测试仪。该仪器除测量扬声器瞬态特性外,还可测量其它电声器件的瞬态特性。二、主要技术性能1.频率范围:10Hz到20kHz; 2.从10Hz到20kHz频率范围内,输出对称脉冲所包含的正弦列数(正弦波个数):4、8、16、32四档;
I. INTRODUCTION Among the many parameters that evaluate the quality of speaker playback, the transient characteristics are one of the most difficult parameters to measure. The speaker transient characteristics of good or bad, the language clarity, music fidelity and presence have a great impact. In order to evaluate and improve the quality of the speaker, we should understand and test the transient characteristics of the speaker. In order to meet the scientific research needs and speaker testing requirements, based on the similar products trial-produced by our institute (64 years), the transient characteristics of the speaker 801 Tester. In addition to measuring the transient characteristics of the speaker, the instrument can also measure the transient characteristics of other electroacoustic devices. Second, the main technical performance 1. Frequency range: 10Hz to 20kHz; 2. From 10Hz to 20kHz frequency range, the output symmetrical pulse contains the number of sinusoidal (sine wave number): 4,8,16,32 fourth gear;