Beilarly shares with you a detailed explanation of stage sound knowledge

Stage sound is a general term for the sound equipment used for stage performance, including many equipment and equipment such as mixer, amplifier, microphone, speaker, equalizer, reverberator, effector, time delayer, compressor, limiter, splitter, noise gate, laser player, recording card seat, video player, projector, tuner, song lighter, earphone, etc.

The main functions of stage acoustics are live performance, conference amplification, recording, music playback and compatible singing, playing background music, etc. At present, there are many kinds and functions of stage audio equipment in the market, which brings some difficulties to the selection of audio equipment. In fact, in general, professional stage audio equipment is composed of microphone + Mixer + power amplifier + speaker. In addition to the microphone, the sound source sometimes needs DVD, computer to play music, etc. If you want professional stage sound effect, in addition to the professional stage construction staff, you need to add effect device, sequencer, equalizer, pressure limiter and other sound equipment.

Indoor and outdoor stage performances also have different requirements for sound equipment. For indoor art performances such as theater stage, the first requirement is sound art. First of all, it is necessary to ensure sound quality, pleasant and beautiful sound, and outdoor art performances. The first requirement is sound technology. First of all, it is necessary to ensure that no accidents occur in art performances and successfully complete the task of art performances, Because the outdoor performance is more difficult than the indoor performance, there are also many specific technical requirements, such as the outdoor sound field, which needs to have a strong power, because the outdoor sound field needs to increase the sound pressure level by 3dB, the power needs to increase by 2 times; the placement position of the outdoor performance speaker cannot be too low, and the sound wave of the low-level speaker is easy to be absorbed by the audience's human body, resulting in grazing absorption Sound phenomenon, especially the loss of medium and high frequency, so it is necessary to install the loudspeaker by hoisting. The medium or high frequency horn and outdoor special speaker (high power high frequency horn is installed in the speaker), so that the sound wave of the speaker radiates far in the air, so that the audience can get enough loudness; select high-sensitivity microphone, so that the sound transmission gain of the microphone can be enhanced So that the audience can get enough loudness; the sound engineer should keep in touch with the assistant of the audience through the walkie talkie, so that the sound engineer can grasp the sound effect of the audience more accurately and timely, so as to adjust in time.