音响调节方法？英文双语对照

第一，将功放和音箱接入系统，逐一打开设备的电源，待它们工作稳定后，接入相位仪，在较小的音量下，逐一检查所有音箱的相位是否正确。

第二，将噪声发生器和均衡器接入系统，准备好频谱仪，按照国家有关厅堂扩声质量测试要求，将频谱仪设置在相应的地方。然后以适中的音量对粉红色噪声信号扩声，在20-20kHz的音频范围内，细致微小地调节均衡器的各个频点，在保持音量一致的前提下，使得频谱仪显示的房间频响曲线在各个测试点处基本平直，并且记录好均衡器各频点的位置。

同样在音量较小和额定的音量下，再对均衡器进行调试，并记录好，最后将这些记录好的均衡器频点进行相应的折中处理，再利用频谱仪的高一级的档位进行测试，适当修正后就可以确定好均衡器的频点位置了。

注意，在进行均衡器的调试时，调音台的频率均衡点一定要在0处，其他周边处理设备要处在旁路状态。另外，考虑到普通人的听音习惯，可以将均衡器10k以上的信号适当做一些衰减。

第三，将电子分频器接入系统，进行分频器的调试。对于仅作为低音音箱分频的分频器，可以在均衡器调试结束后，让低音系统单独工作，将分频器的分频点取在150-300Hz处，适当调整低音信号的增益，感觉音量适合即可，然后与全频系统一道试听，平衡低音和全频音量。

对于作为全频系统的分频器，一定要尽量参照音箱厂家推荐的分频点进行设定，然后反复调整各频段信号的增益，直到听感比较平衡后，再参照后面的声压级测试对增益做进一步的微调即可。

第四，声压级的测定。同样将粉红色噪声仪接入扩声系统，象调试均衡器一样选取几个测试点放置声压计，将音响系统的所有设置都调整完毕，最后打开系统的设备，逐渐提升噪声信号音量，要求在保证信号的最佳动态的前提下，调整各设备的增益，使得系统的扩声声压在各测试点都要达到设计的要求，同时需要参考声压级在高、中、低各频段的情况，再对均衡器和分频器略微做一些调整。当然高、中、低各频段的声压级不可能完全相同，一般为了考虑听感的特点都需要在高频的声压级上做一些降低，而DISCO系统的低音系统打开后又需要低频声压级更高些。在声压级的测试时，需要将各测试点的声压级比较一番，如果各点的结果偏差较大，即说明该声场的均匀度不好，就应该认真地进行分析和改进，这个问题将在后面讲述。

第五，话筒和效果器的调试。对于话筒的调试一般要分类进行，人声、乐器用的有线话筒通常需要日常使用者配合完成，调试时需要了解好各人、各乐器最合理的话筒型号和使用距离，音质好，没有可闻的线路噪音即可。

而无线话筒需要注意：天线的位置要合理，话筒使用时的死点和反馈点要足够少，并详细对位置作好记录，接收机的信号增益要适可，噪声抑制的微调旋钮要反复调试等;对于效果器的调试工程要求都不严格，只要将信号的输入和输出增益调试合理，保证有一定的余量，并且将混响时间和延时量限制在一定范围，以免影响语言的清晰度和信号的连续性即可，其他具体的使用调整可以让操作者来自己进行。

第六，对于压限器的调试，一般要在其他设备调试基本完成后再进行。在多数工程中，压限器的作用是保护功放和音箱，以及保持声音平稳，所以要先视信号强弱来设定压缩起始电平，通常起始电平不要设定太低，否则系统音质会受到影响，但设定太高也会失去保护作用;压缩启动的时间设置也不宜太长，以免使保护动作不及时，但太短又会破坏音质，产生奇怪的声音，压缩恢复时间却不宜太短，否则也会产生奇怪的声音;压缩比在一般的工程中设定为4：1左右。在设定压限器上的噪声门时，可以这样：如果系统没有什么噪声，可以将噪声门关闭，如果有一定的噪声，可以将噪声门的门槛电平设置在比较低的位置，以免造成信号断断续续的打嗝现象，如果系统的噪音较大，就应该在工程的施工上分析了，不应该单独利用噪声门来解决。

The first, will result put symphonious box to accept a system, one by one opens the power source of equipment, after waiting for their job to stabilize, accept phasic gift, below minor volume, what one by one checks all sound box is phasic correct.

The 2nd, accept noise generator and equalizer the system, prepare spectrum appearance, according to the country quality of sound of enlarge of concerned hall hall tests a requirement, spectrum appearance the setting is in corresponding place. Be opposite with the volume of moderate next sound of enlarge of pink noise signal, inside the frequency limits of 20-20kHz, adjust meticulous and tinily each frequency dots of equalizer, below the premise that maintains volume to agree, make the room frequency that spectrum appearance shows noisy the curve is nodded in each tests place is basic and flat, and record the place that each frequency chooses good equalizer.

Be in likewise volume is minor fall with rated volume, undertake debugging to equalizer again, had recorded, good these records equalizer frequency place undertakes corresponding eclectic processing finally, of recycle spectrum appearance tall the archives of one class have a test, the frequency of OK and affirmatory good equalizer after be being amended appropriately chooses the place.

Attention, debug in what undertake equalizer when, balanced dot must be in the frequency of sound console 0 place, equipment of other and circumjacent processing should lie bypass condition. Additional, the audition that considers Everyman phonic habit, can do the signal of equalizer 10k above a few attenuation appropriately.

The 3rd, electronic scale down implement accept a system, undertake scale down implement debug. To regarding bass sound box as the scale down of scale down only implement, end hind can be debugged in equalizer, make bass system alone work, scale down implement scale down dot is taken be in in 150-300Hz, adjust the gain of bass signal appropriately, sensory volume suits can, try together with complete frequency system next listen, balance bass and complete frequency volume.

The scale down of system of complete to regarding as frequency implement, must consult as far as possible the scale down site that sound box manufacturer recommends has set, adjust the gain of date of each frequency Duan Xin repeatedly next, until listen feeling after be being balanced quite, consult again the test of sound pressure level from the back does farther fine tuning to gain can.

The 4th, of sound pressure level determine. Appearance of same will pink noise accepts enlarge sound system, choose site of a few tests to place sound pressure meter like debugging equalizer, adjust all settings of sound system end, open systematic facility finally, promote noise signal volume gradually, the requirement falls in the premise of the optimal trends that assures signal, adjust the gain of each equipment, make the demand that systematic enlarge controls in each to check a dot to want to achieve a design in succession, at the same time need consults sound pressure level is in tall, medium, low each frequency paragraph circumstance, mix to equalizer again scale down implement appreciably is done a few adjust. Tall of course, medium, low each frequency paragraph sound pressure level cannot be identical, the characteristic that feels to consider to listen commonly needs to be done on high frequency sound pressure level a few reduce, and low frequency sound pressure level needs again after the bass system of DISCO system is opened some taller. When the test of sound pressure level, need measures each pilot sound pressure level to be compared one time, if result error of each bits is bigger, the uniformity that shows this sound field namely is bad, undertake analyse and be improvemented with respect to should serious ground, this problem will be told about at the back.

The 5th, mike and effect implement debug. To mike debug want classification to undertake commonly, the person that the wired microphone that voice, musical instrument uses needs to be used daily normally cooperates to finish, the mike model with good each one of understanding of the need when debugging, each the most reasonable musical instrument and use distance, acoustic quality is good, the circuit noise that can not hear can.

And radio microphone needs to notice: The position of aerial wants reasonable, the dead center when mike is used and feedback dot want enough little, make good record to the position in detail, the signal gain of receiver wants comfortable but, knob of noise low-key fine tuning should be debugged repeatedly wait for; to the effect implement debug a project the requirement is not strict, want to debug the input of signal and output gain only reasonable, assure to have certain surplus, and measure reverberation time and delay time limitation be in certain limits, lest affect the definition of the language and signal successional can, other and specific use is adjusted can let handlers come oneself undertake.

The 6th, be restricted to pressing implement debug, want to debug the reentry after be being finished basically to go in other equipment commonly. In most project, pressure be restricted implement action is protective meritorious service puts symphonious case, and retain voice smooth, should inspect signal to come by force infirmly first so set compresses initiative n, normally initiative n does not want set too low, otherwise systematic acoustic quality can be affected, but set also can lose protective action; too high to compress started time setting to also should not be too long, lest make protective action not timely, but too short can destroy acoustic quality again, produce strange sound, compress restore time to should not be too short however, the sound; compression ratio with also can arise strange otherwise is in the set in average project 4: 1 the left and right sides. Be restricted in set pressing implement when the noise door that attend, can such: If the system does not have what noise, can close noise door, if have certain noise, can be in the doorsill n setting of noise door smaller position, lest create the belch appearance with desultory signal, if systematic noise is bigger, should analyse on the construction of the project, should not use noise door to solve alone.