One of the biggest challenges in live performances is how to increase the gain as much as possible without overloading. This has two advantages. The first is that in the current era of loudness wars, large gains can allow you to quickly gain a loudness advantage. , Make your live performance even higher! Improve the effect of live performances. The second is that it can cover various local noises in the field environment to a certain extent. So increasing the gain is one of the simplest and most efficient ways, but you must be careful not to overload!
Because the gain is increased, the adjustment of equalization and compression in a live performance is completely different from that in a recording studio. Since the ambient sound will obscure most of the small details of the sound, it will sound bad to move the parameter settings in the scene into the recording studio. Then you can use a low-sensitivity dynamic microphone to pick up the sound of stage instruments. Condenser microphones are used in live performances. The environmental interference is too serious (especially pop music).
No matter which microphone you prefer, a normal cardioid microphone is a must. This kind of directivity can discard a large part of the off-axis, that is, the sound that is not the main pickup sound range, and effectively block the interference from the stage monitor or the sound reinforcement box. The reason why novices are not recommended to use super cardioid and super cardioid microphones is that these two directivity will absorb the sound directly behind, which may cause trouble for the performance.
Another important point is the distance between the microphone and the sound source. In most cases, the closer the microphone is to the sound source, the better. This can increase the ratio of the main signal source. The larger the ratio, the greater the gain you can turn on the mixer, and the less likely it is for sound feedback to be false.
There is also a principle of following the trend. Just like recording in a studio, we need to find the "sweet spot" of the instrument. All instruments have one or two best pickup positions, and pickup at this position can express the most beautiful side of the instrument.
Looking for "desserts", we need to constantly move the microphone up and down, left and right, and we need a spirit of perseverance and perseverance. Find an assistant to help you adjust the placement, and you can direct it in front of the console. If you are familiar with certain musical instruments, it only takes a short time to set up the microphone.