Common problems in professional sound engineering.Bar Audio Nanjing Vendor.Bar audio set Vendor

　　The problem of signal distribution When several sets of speakers are installed in a professional audio project, the signal is generally distributed to multiple power amplifiers and speakers through an equalizer. But at the same time, it also leads to the mixed use of various brand models of power amplifiers and speakers. This distribution of signals may cause various problems, such as whether the impedance matches, whether the level distribution is even, whether the power obtained by each group of speakers meets the standard, etc., and use an equalizer It is difficult to adjust the sound field and the frequency characteristics of the speakers.

　　1. Compressor adjustment problem. The common problem of compressor adjustment in professional audio engineering is that the compressor does not work at all or the effect is excessive, which leads to reaction. The former problem can still be used after the occurrence of the latter problem, which will seriously affect the operation of the sound engineering system. The specific performance is usually that the stronger the accompaniment sound, the weaker the human voice makes the performer at a loss.

　　2. The problem of system level adjustment is that the sensitivity control knob of the power amplifier is not in place, and then the audio system does not perform zero-level adjustment. Sometimes the sound output of the mixer channel is increased a lot by pushing up slightly. This situation will affect the normal operation and fidelity of the sound system.

　　3. Professional audio bass signal processing The first type of problem is to directly use the full-frequency signal to drive the speaker without electronic crossover; the second type of problem is not knowing where to get the bass signal from the system for processing. If you do not use electronic crossover and directly use the full-frequency signal to drive the speaker with the amplifier, although the speaker can emit sound without damaging the speaker unit, it is conceivable to send full-frequency sound to its low unit alone; but if it is not from the system Obtaining the bass signal in the right place will also bring extra trouble to the on-site operation of the sound engineer.

　　4. The professional sound effect loop processing should take the post signal of the fader to avoid the microphone whistling scene caused by the out-of-control effect. If it is possible to return to the scene, it can occupy one channel, so it is easier to adjust.

　　5. Line connection processing The loud ac noise of the audio system that is common in professional audio engineering is caused by the inadequate line connection processing, and there are balanced to unbalanced and unbalanced to balanced connections in the system, which must be in compliance with the standard when used. . In addition, it is forbidden to use inferior connectors in professional audio engineering. 6. Control problems. The console is the control center of the audio system. Sometimes the high, medium and low EQ balance on the console is increased or attenuated by the same large extent, which means that the audio system is not set up correctly. The system should be re-tuned and excessive adjustment of the console is prohibited. EQ.

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