KTV audio debugging skills

　　1. KTV audio debugging adjust the sound quality and volume. Due to singing karaoke at KTV, the voices of untrained people are not very pure and lack brightness. Male voices are prone to guttural sounds and hoarseness, and female voices are prone to breath noise and blemishes. Therefore, the high frequency above 500MHz needs to be cut off, and the low frequency below 100Hz also needs to be cut off. At the same time, the mid-frequency band needs to be increased by 3-6dB to increase the brightness and make the sound clear and bright. Generally, the voice of the singer is low and lacks loudness, so the volume should be turned up as much as possible, and the frequency band near 2000MHz can also be increased, which can also increase the loudness of the sound.

　　2. KTV audio debugging adjust the ratio of microphone volume and accompaniment volume. Generally speaking, a good song, in terms of volume distribution, should be roughly 40% of the accompaniment music and 60% of the singing voice. If the singer is not familiar with the melody of the song, it is easy to sing out of tune and not in tune, then appropriately increase the volume of the accompaniment.

　　3. KTV audio debugging is beautified with reverberation. The characteristic of KTV singing is that adding electronic reverberation to the singing can cover up some defects in the voice and vocalization. When the male bass sings, the reverberation time can generally be shortened, and when the soprano sings, the reverberation time can be appropriately extended to increase the color of the sound. As for the singing environment, if the walls around the room are made of wooden boards, it will have a reverberation effect. At this time, the reverberation time should be shortened to prevent the sound from being blurred. The loudness adjustment knob is adjusted to the middle position, that is, the ratio of the direct sound component to the reverberation component is roughly 1:1.

　　4. Tuning of KTV private room audio whistle. If both high and low frequencies are prone to whistling? It is either that the KTV tuning is not in place, or that the decoration has obvious sound defects or both. At this time, you can try to properly attenuate the bass of the microphone, keep the treble at the 12 o'clock position or increase it appropriately, and then --slow --slow -- increase the volume of the microphone until high-frequency whistling begins, and then adjust it back to a safe volume position. Note that two microphones should be turned on at the same time, and at least one should be placed on the table facing the speakers. I believe that you should get a microphone effect with easy singing, clear sound and relatively safe (provided that the whole set of equipment, including the microphone, has a relatively flat frequency response, in fact, it means that it must have a relatively good quality. If the hardware is inherently insufficient, there is no need to work hard. .The device is replaced first.)

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