Karaoke has entered China since the 1980s. After many changes, its fiery heat has not shown a downward trend. Nothing to go to KTV to sing two songs, has become one of the entertainment methods in everyone's life, so the sound effect of good KTV is very popular with consumers. It can also be said that the sound quality of KTV directly affects the business of KTV. However, tuning the KTV room is also a headache for many KTV operators. How to improve the sound effect of karaoke rooms is the concern of engineering and KTV operators. Then I share some experiences and skills with you.
1, adjust the sound quality, volume Because KTV karaoke, the voice of people who have not been trained, the sound quality is not pure and lack of brightness, male voice is prone to throat and hoarse, female voice is prone to breath noise and voice. Therefore, it is necessary to cut off the high frequency above 500MHz, and also need to be cut off below the low frequency of 100Hz, and increase the brightness by 3-6dB in the middle frequency band to increase the brightness and make the sound clear and bright. Generally, the singer's voice is low and lacks loudness, so the volume should be adjusted as much as possible. It is also possible to increase the frequency band around 2000MHz, so that the processing can also increase the sound level.
2, adjust the ratio of the microphone volume and the accompaniment volume In general, a good song, in terms of volume distribution, roughly should be accompaniment music accounted for 40%, singing voice accounted for 60%. If the singer is unfamiliar with the melody of the song, it is easy to sing the tune and not take the shot, then increase the accompaniment volume appropriately.
3. Beautify with reverb
The characteristic of KTV singing is to add electronic reverberation to the singing voice, which can cover up some defects in the buzzing and vocalization. When a man whispers, he can generally shorten the reverberation time, and the soprano can properly extend the reverberation time to increase the color of the sound. As for the singing environment, if the wall around the room is made of wood, it has a reverberation effect. At this time, the reverberation time should be shortened to avoid blurring of the sound; in the case of no special requirements, it can be mixed. The adjustment knob is adjusted to the middle position, that is, the ratio of the direct sound component to the reverberation component is approximately 1:1.
4, KTV private room audio howling tuning High and low frequency if it is easy to appear howling? It is not that the tuning is not in place, that is, the decoration has obvious obvious sound defects or both. At this time, you can try to properly attenuate the bass of the microphone, keep the treble at 12 o'clock or raise it properly, then slowly raise the volume of the mic to start with a high-frequency whistle and then properly call back to a safe volume position. Note that two microphones must be turned on at the same time, at least one should be placed on the table facing the speaker. I believe that you should get a clear and relatively safe microphone effect with easy sound. (The premise is that the whole set of equipment including the microphone has a relatively flat frequency response, in fact, it means to have better quality. If the hardware is congenitally insufficient, you don't have to work hard. The equipment is changed first.) If the microphone gain is really not going to go, then only the 31-band equalization whistle is inserted in the microphone channel or the main channel.
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