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Common problems encountered in sound engineering and their solutions.Audio conference room

source:Industry News release time:2022-10-26 Hits:     Popular:Brand bar audio wholesale

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  It is not easy to set up a set of qualified, high quality sound system, whether it is a large concert sound system or a small KTV room sound system, all need professional sound technicians to sound engineering in every detail to make the best treatment. The following summary of professional audio engineering often encountered in some problems and these problems and solutions, hope to help your sound system.

  ①, system level problem is above all power amplifier sensitivity control switch open insufficient, next the system did not do zero level adjustment. Sometimes the mixer channel is pushed a little bit and the output is too large, which can affect the dynamics and distortion of the system.

  ②, the line connection process common system AC interference noise is caused by the line connection process is not done well, and the system has balance to imbalance and imbalance to balance connection method must be connected according to the standard, in addition, do not use poor connector.

  (3) The problem of signal distribution is in the case of several groups of loudspeakers in the sound field, often use an equalizer to distribute the signal to many power amplifier to promote the sound box. But the result that also may be different brand model and sound box mix at the same time use together, such allocation signal brings a lot of problems, impedance matches, level allocation is balanced, the power that sound box place obtains is normal, and adjust the frequency characteristic of good sound field and sound box very hard with an equilibrium.

  ④, the effect of circuit processing should take the faders after the signal, to avoid the effect of uncontrolled microphone howling, return conditional occupation of a channel, so that the debugging is more convenient.

  (5), graphic equalizer frequency adjustment problems common swallow type mountain type wave type three kind of spectrum of wave shape, above waveform are tuner people imagine graphics, it's not sound field actual need of waveform, we know that the ideal sound field frequency characteristic curve should be relatively flat, if human by the imagination to adjust sound field frequency characteristic curve, you can imagine as a result, the backfire .

  The first bass signal processing does not do electronic frequency division with full frequency signal directly to the power amplifier to promote the speaker box; The second one does not know where to extract the bass signal from the system for processing. If do not do electron divide frequency to push sound box to work with full frequency signal directly although sound box has sound also unapt burn out unit, but hair full frequency voice with respect to its low unit is imagined; But if the signal is obtained from the improper position in the system, it will also bring unnecessary trouble to the field control.

  ⑦, pressure limiter adjustment problem is common decoration does not work at all and excessive effect is counterproductive. The former can be used, the latter will bring a serious impact on the dynamics of the system, as the voice can not come out, the obvious performance is that the stronger the accompanying voice is naturally weakened so that the singer is at a loss.

  The mixer is the control center of the system. Sometimes, if the high, middle and low EQ balance on the mixer does the same large increase or decrease, it means that the system is not properly adjusted. It is necessary to re-debug the system and do not over-adjust the EQ of the mixer.


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