在音响设备中，器材的电-声或声-电转换能力的大小称为器材的灵敏度。对于有源音箱，灵敏度是指内部放大器的放大倍数和扬声器组合的灵敏度，放大倍数大的接很小音频输出功率的随身听等小功率音源声音都很大。对于无源音箱，灵敏度指的是扬声器组合在功放系统在给予音箱1W的1000Hz信号时，1M处产生的声强大小。有时某些济南音响系统为了音质和工作的稳定性，会被迫降低灵敏度。

In the acoustic equipment, the size of the electric sound or the acoustic power conversion capability of the equipment is the sensitivity of the equipment. For the active speaker, the sensitivity is that internal amplifier amplification multiples and speaker combination of sensitivity, magnification and the then very small audio output power of the Walkman and the voice of small power source are of great. For passive speakers, the sensitivity refers to the sound intensity generated by the 1M in the 1000Hz signal when the amplifier system is given a speaker 1W. Sometimes certain Ji'nan sound system in order to sound and work stability, will be forced to reduce the sensitivity of.

音箱的灵敏度可能是各种常见指标中最容易被错误理解的一个了。一直以来，音箱的幅频响应经常会被简化成某个单一数值，也就是灵敏度。这就是导致误解的根源所在。有人会认为这个值表示的是某个音箱重放某个信号时的响度大小；也有人会认为两个灵敏度相同的音箱在重放同一个信号的时候响度是一样的。这两个观点都有局限性。其实，音箱的灵敏度只是针对特定带宽和频谱内容信号时，才能反映出音箱声压级的大小。也就是说，两个灵敏度指标相同的音箱，如果其频率响应不同的话，那么在重放同一个信号的时候，输出声压级可能是不一样的。

The sensitivity of the speaker may be one of the most easily understood of the various common indicators.. All along, the speaker's amplitude frequency response is often simplified into a single numerical, which is the sensitivity of. This is the source of the misunderstanding.. Some people think that the values are expressed in terms of a sound reproducing a signal when the loudness, people will think that two identical sensitivity of speakers in reproducing the same signal loudness is the same. These two views have limitations. Actually, the sensitivity of the speaker just for certain bandwidth and spectral content of the signal, can reflect the size of speaker sound pressure level. That is to say, the two speakers of the same sensitivity indexes, if its frequency response to different words, then when replaying the same signal, output sound pressure level may is not the same.

在济南音响设备中，狭义的灵敏度概念主要涉及的电声设备有话筒、音箱；涉及的电气设备有功放、调音台及周边设备。

In Jinan audio equipment, mainly involved in the narrow sense of the concept of sensitivity of electroacoustic equipment has a microphone, speakers, relates to the electrical equipment with amplifier, mixer and peripheral equipment.

1、根据采用的单位和连接负载的不同情况，常见的话筒灵敏度有开路灵敏度和有载灵敏度。

1. According to the different situations of the unit and the load, the common microphone sensitivity has the open circuit sensitivity and the load sensitivity..

a、开路灵敏度规定：在单位声压作用下，开路灵敏度=开路电压/话筒振膜上的声压。

The sensitivity of a and open circuit is that the open circuit sensitivity is the sound pressure of the open circuit voltage and the acoustic pressure of the microphone under the pressure of the unit..

基准值的单位不同，所得到的开路灵敏度的计算结果也不同，我国一般采用mv/pa 或v/pa 为单位。可见用dB 表示的灵敏度必须注明基准值(即0dB 值是以v/u bar 还是以v/pa 为单位)，否则灵敏度标注将没有参照价值。

The results of the calculation of the open circuit sensitivity are also different, and the results of the open circuit sensitivity are also different. The mv/pa or v/pa is generally used as the unit.. DB indicated that the sensitivity must indicate the baseline value (that is, the 0dB value is bar v/u or v/pa as the unit), otherwise the sensitivity will not be the reference value.

b、有载灵敏度是灵敏度的功率表示法。它是指在单位声压下话筒输出端在额定负载上的输出功率，单位是mw/u bar，一般取额定负载为600Ω。通常还可以采用dBm 来表示电功率灵敏度，这时候的基准值是1mv/u bar。

The sensitivity of B and the load sensitivity are the power expression of the sensitivity.. It refers to the output power of the microphone output under the rated load at the sound pressure of the unit, and the unit is bar mw/u, typically taking the rated load of 600. DBm can also be used to indicate the sensitivity of the power, this time the benchmark value is bar 1mv/u.

同时话筒的灵敏度还和测取的频率点有关系(一般取1KHZ)，这种灵敏度称为某频率灵敏度;如果在一定频率范围内取平均值，就称为平均灵敏度。

Also the microphone's sensitivity and measuring frequency points of relationship (generally 1kHz), this sensitivity said for a frequency sensitivity; if taking the average value in a certain frequency range, it is called an average sensitivity.

话筒灵敏度概念还涉及声压的问题，如果是利用声场中某点的声压值计算的，就称为声场灵敏度;如果是直接利用话筒振膜上的声压计算的灵敏度，就称为声压灵敏度。

Microphone sensitivity concept also relates to pressure, if is the use of sound field in a point pressure calculation and field sensitivity is called; if it is the direct use of the microphone diaphragm sound pressure calculation of sensitivity, pressure sensitivity.

2、济南音响  http://www.jnzqyx.com/ 的灵敏度最早是被定义为单位电压作用下音箱产生的声压值的。

2, the sensitivity of the Ji'nan acoustic is first defined as the sound pressure value of the sound box generated by the sound box.

济南音响的灵敏度类似于话筒，最早的定义中，它被定义为：单位电压作用下音箱产生的声压值。 但是这个定义没有将输入电压结合扬声器的阻抗来考虑，也就使得灵敏度失去了参照价值;同时，音箱的灵敏度需要反映出它对具体功率的信号转换能力，而不是电压信号的转换能力，所以为了更好地表征音箱的机电转换能力，一般规定在音箱上施加一定功率的信号后，在一定距离上测得的声压级，称为音箱的灵敏度，即dB/m/W。

The sensitivity of the Ji'nan sound is similar to that of the microphone, and the earliest definition, it is defined as the sound pressure value of the sound box produced under the effect of the unit voltage. But this definition without the input voltage with the speaker impedance to consider, also makes the sensitivity lost reference value; at the same time, speaker sensitivity to reflect its specific power of signal conversion ability, and not voltage signal conversion ability, so in order to better characterize the speaker of the electromechanical conversion ability, general provisions power signal applied on the speakers, in a certain distance measuring the sound pressure level, said speaker sensitivity, i.e. dB/m/W.