Wireless microphone should be selected according to system request and location

In ordinary meeting places, choose a single directional heart-shaped or super-heart-shaped microphone, which should be placed at about 20-30CM of the sound source. If the interval is too close, it will produce a near speaking effect to form too much low frequency sound, affecting the clarity of speech; The spacing is too far, the formation of sound reinforcement pressure is not enough, if by increasing the pre-amplification to improve the sound reinforcement pressure, it will cause a scream due to sound reaction. Regarding the Angle between the sound source and the microphone, when the sound source and the central axis of the microphone are 0 degrees, the output effect of the microphone is the best. In order to ensure a good sound effect of the pickup, the Angle between the sound source and the central axis of the microphone should be adhered to within 30 degrees.

In the high quality sound amplification theater or recording room, the moving coil microphone with high quality can be selected, and the capacitive microphone with wide frequency response, smooth frequency response curve and low distortion can be selected to obtain the high fidelity replay of the sound source recording. For example, when picking up the sound of a large band, you can choose AB, MS, XY flat sound microphone pickup. Place the microphone at the top of the stage, 5-7m away from the band, with the axis of the microphone pointing towards the band.

You can choose clip-on wireless microphone when performing skits in the theater, and upright microphone when performing crosstalk; When playing the opera, the interface microphone in the single-directional microphone can be selected, placed on the left, middle and right positions of the stage, which can eliminate the reflection effect of the stage surface, and can also effectively suppress the noise of the audience around it, without affecting the audience's vision.

For soloists, if it is popular songs and folk songs, heart-shaped and super-heart-shaped handheld wireless microphones can be used. Between 1-250px from the mouth, emotional details of the song can be picked up. In order to avoid the teeth sound, the wireless microphone can be properly turned to the side to avoid the spout sound. Can be placed 20-1000px away from the mouth.

In the stadium to broadcast all kinds of ball games, the general use of single-pointing microphone in the long gun, it has strong directivity, can pick up the sound at a long distance, the Angle of the single pickup range is small, in a ball game pickup site need to use a number of different square, different angles of the microphone. Place on the outside of the playing field and point to the playing field.

Some more important meeting places, generally use a single directional gooseneck microphone. Because it has strong directivity, it can be placed at 20-750px from the mouth, and the Angle between the mouth and the microphone axis does not exceed 30 degrees, which can increase the clarity of speech. Can also use the interface microphone, its pickup clarity is also very good, and not easy to see.