The stage monitor speaker refers to a speaker that provides a ground return sound reinforcement for the band on the stage.
Why optimize the pre-feedback gain before the graphic equalization is the most frequently misinterpreted part of the sound reinforcement system. The returning speaker can be placed anywhere on the stage. Some of the tips mentioned below can help you get out of the wrong zone and get More feedback before gain.
Even if your microphone doesn't whistle, you may hear a low "empty" sound. Although the acoustic environment of the building itself can cause this problem, it is most likely that the microphone picks up too many signals and feeds it into the system signal chain, and then you will hear a very harsh feedback. call.
Before we start discussing system optimization, there are some points of knowledge that you must grasp. To understand the placement of the stage monitor speakers, you must have an understanding of the type of microphone you are using.
The microphone pickup mode is generally divided into an omnidirectional microphone and a single directional microphone according to the pickup mode of the microphone. The omnidirectional microphone picks up the sound evenly from all directions, so it is rarely used for live performances. A single-point microphone picks up sound only in a particular direction.
Heart-shaped microphone\monitor speaker placement When we point the microphone at the stage monitor, it is likely that there will be feedback whistling, so the microphone pointing away from the stage monitor seems to be the best choice. But the condition is that you are using a cardioid microphone. The heart shape points to its pickup range much like a heart.
Super Heart Microphone\Monitor Speaker Position Next, let's take a look at the pickup mode of the Super Heart Microphone. You will find that pointing the microphone away from the monitor speaker is not necessarily the best method, because the super card microphone pair comes from The agility of the sound in front and back is almost the same. You will find that the best way to place a supercardioid microphone is to make it slightly off the axis of the monitor. Use 2 stage monitors, or adjust the angle of the microphone to make it as good as possible for the performer.
Hey: If you need a little more gain, you can try to invert.
1. Perform reverse phase processing on a microphone with a large level signal. Try to reverse the polarity switch on the mixer, which will often work well.
2. In most cases, it is better to reverse the entire speaker system. The system can be inverted by exchanging the positive and negative connectors of the amplifier output of the monitor monitor. Because I made some jumpers, I don't need to reconnect here. Although this is not suitable for all occasions, it is often possible to obtain an additional 3dB gain.
These techniques are not intended to tell you that the sound pressure level of the monitoring system is as large as possible, and we all know that we do not require the sound pressure level of the monitoring system to be large. If you can apply this knowledge to practice, I believe that you can avoid the tormented feedback whistling.
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