Teach you how to tune and maintain the KTV sound system

　　1. How to adjust the sound

　　If the timbre is not handled well, it will not only make the sound monotonous and tasteless, but also cause serious distortion of the instrument or singing. Therefore, the importance of timbre processing must not be ignored. For male voices, most people's voices are relatively low and lack treble. In order to improve the clarity of singing, the frequency components around 3000Hz can generally be appropriately increased; while female voices are mostly high-pitched and make the sound "sharp" , in order to make the sound louder and not too harsh, generally the frequency components around 400Hz can be properly improved.

　　2. How to adjust the reverberation time

　　Reverberation usually determines the length of the residual sound, which has a direct impact on the color and clarity of the sound. Under normal circumstances, when the bass is singing, the reverberation time can be shortened to improve the clarity of the sound; if it is a soprano singing, the reverberation time can be appropriately extended to increase the color of the sound. For a concert venue, if the walls around the room are made of wood, it will have a certain reverberation effect. At this time, the reverberation time should be reduced to avoid blurring the sound; on the contrary, if the room is made of glass Structure, or hanging flannel curtains and other sound-absorbing materials, such a room lacks reverberation, and the reverberation time should be increased to prevent the sound from being dry. In addition, the size of the audience also has a great impact, because the audience's clothing also has a great absorption effect on the sound. Generally speaking, the tuner can choose a reverberation time that feels suitable between 1-2 seconds.

　　3. How to adjust the proportion of direct sound and reverberation sound

　　Appropriately increasing the proportion of the reverberation sound is conducive to simulating the natural reverberation effect, making the sound plump and pleasant, and increasing the audience's three-dimensional sense of the scene. If there is too much reverberation and too little direct sound, the sound will be seriously distorted, just like the sound heard in the bathroom or bathhouse, which is the so-called "bathroom effect". Therefore, if there is no special requirement, the reverberation adjustment knob can be adjusted to the middle position, that is, the ratio of direct sound to reverberation is 1:1. In this way, the sound will not produce distortion, but also have a certain reverberation effect.

　　4. How to adjust the ratio between the volume of the microphone and the volume of the accompaniment

　　For a good song, in terms of volume distribution, the accompaniment music should account for 40%, and the singing voice should account for 60%. If the singer's timbre is good, the volume of some accompaniment music can be appropriately reduced to highlight the singer's singing voice; if The singer is not very familiar with the melody of this song, and it is easy to sing out of tune and out of tune. In order to cover up these shortcomings, the volume of the accompaniment can be appropriately increased at this time. However, in operation, care should be taken not to increase the volume of the microphone too much, so as to lose the atmosphere of karaoke; also do not make the accompaniment sound too strong to "drown" the singer's singing voice.

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