K song: factors that affect the ease of singing

Unconsciously, karaoke has been introduced to China for more than 20 years. This kind of entertainment that almost everyone can make is very in line with the habits of the Chinese people singing and singing, so the time is long and new. The form of karaoke has remained the same for many years, but karaoke equipment has undergone several revolutionary changes. Nowadays, although the karaoke has changed to "KTV", the main functions and entertainment contents of singing have not changed. Today, guests are more concerned about the issue of “singing easy to sing”. Because in the nightclubs where beautiful women are like clouds, drunken fans, or KTVs that are sung in the songs, the "smoothness of singing" is equally concerned. "Singing is hard, not easy" is also disgusted by Chinese people, singing The feeling of relaxation and natural comfort has become the common pursuit of everyone. So why is it that some audio singing will be laborious and not easy? How should it be solved?

In general, there are several reasons why it affects the ease of singing and makes people feel tempted by songs:
1. The speaker's frequency response curve is lacking (concave) and unbalanced.
There are many different states of the speaker curve imbalance, usually: In the current two-way KTV speaker, the 10-inch or 12-inch foam rubber woofer is equipped with a 3-inch paper cone and a small treble two-way speaker, in order to make 3 The inch paper cone treble is relatively safe, and the design has to shift the crossover point of the treble upwards. Therefore, this type of two-way KTV speaker has a "valley"-like curve defect (recess) in the middle and high-pitched areas. Part of the band lacks sound, and the speaker cannot reproduce (represent) the sound of the middle band normally, resulting in weak sound energy in the middle band. Therefore, this type of two-way speaker feels relatively "soft" (dark) "clean" when listening to songs, but because the speaker is partially lacking sound, the vocal (microphone sound) cannot be reproduced naturally, so people will I feel that singing is hard and not comfortable.
Solution:
1. Switch to a three-way KTV speaker.
The three-way KTV speaker has a mid-range speaker that reproduces the sound in the middle and high frequency bands, which makes up for the disadvantage that the effective upper limit of the woofer is not high enough and the effective lower limit of the 3-inch paper cone small tweeter is not low enough to enhance the energy of the medium and high frequency. Improve the balance naturalness of the frequency response curve, so that the sound is all there, the sound reproduction is more comprehensive, more real and natural, the sense of hearing is bright and clear and natural, and the voice is all sung by the microphone. The sound (microphone) playback is not lacking (concave), the sound originally amplified the sound locally, so the three-way speaker makes people feel relaxed, natural, comfortable, and effortless.

2 If the private room is large and the reflection intensity is not large, you can switch to a high-quality professional speaker with two-way frequency.

High-powered large voice coil tweeter with two-way professional speakers (38-core or 44-core or higher-drive headphone with high-pitched horn and cloth-side bass). The effective lower limit of the frequency response is low enough, plus the horn is enhanced. The energy of the middle and high notes, so when using this unit for crossover connection, the frequency response curve can easily be balanced and natural, and the mid-high range does not have the acoustic defects of physical characteristics, so it is the same as the three-way KTV speaker: the sound is bright, Clear, natural, all the sounds are there, the high fidelity state is easy to achieve, singing is relatively easy and effortless. Some people are used to the sound of "soft and clean" with depressions. When listening to music purely, they may not like the sound of bright style, and think that the sound is "not tolerant."
However, whether you like soft or prefer bright sounds, when you personally pick up the microphone to sing, everyone will like the sound bright and clear speakers, because these speakers are actually relatively easier to sing. Nowadays, all the pre-effects, music and microphone vocals can be adjusted separately. If you want to make the music sound softer, you only need to attenuate several frequency points that affect the softness of the sound on the music channel. The soft music sounds immediately, but if the microphone vocals are just bright and clear, not too much, not whistling (flying microphone), the microphone's balance (EQ) can be adjusted without much adjustment, just adjust the appropriate amount of reverb effect ratio And the volume ratio makes it easy to sing.

　 2. The reverberation effect of the preamp or combined amplifier is not adjusted, or the quality performance of the preamp is poor.
The preamp or combined amplifiers simulate the reduction of the vocal sound in the natural reverberation space through the adjustment ratios of “reverb”, “echo” and “delay”. Since karaoke has quite a loud music accompaniment, adjusting the appropriate "reverberation amount", "echo count", and "delayed time" can properly highlight the effect, so that the human voice can naturally blend into the music. In the middle, it can break through the encirclement of music, bright and natural highlights, so that the singers can sing less easily, and they can clearly hear their own singing, so that singing can feel relaxed and comfortable. Even if the quality of the speaker is good and there is no lack of sound, but the quality performance of the front stage is not good or the effect is not adjusted, the feeling is that the singing voice is not bad, but the sound is hard, there is no "moisture", singing effort . The solution is: 1 switch to the pre-level with better quality performance; 2 find professionals to bring out the reverberation effect that the public needs.

3. The sensitivity of the speaker is low and the power of the power amplifier is small.
The low sensitivity and low power of the speakers are also one of the reasons why people feel that singing is laborious. Under the same power amplifier output state, the speaker with high sensitivity emits relatively louder sound, and the speaker with low sensitivity emits relatively small sound. Sensitive low-power and small speakers make a small sound, making people feel that the vocals are not loud enough when singing, so it feels like singing. Because the sensitivity of the speaker is not high enough, the power is not big, and the power of the amplifier is also small. In order to ensure the safety, stability and durability of the audio equipment, the tuner generally tries to control the sound pressure (the loudness of the sound), so that the sound is not big enough, and the sound is not dynamic. Come, so people are singing hard and not happy. Solution: 1 Switch to a speaker with high sensitivity and high power; 2 Switch to a power amplifier with high power. The power of a general power amplifier is preferably between one-third and 2.5 times greater than the rated power of the speaker.
4. The quality of the microphone is poor.
The microphone is the device for vocal pickup, which is the only way for people's voice to enter the sound system to zoom in and reproduce. If the curve of the microphone is unbalanced and there is a recess, it is impossible to pick up the vocal signal in a true and comprehensive manner, resulting in partial lack of sound of the human voice. Once the voice is lacking, people will feel that the sound will not come out when they sing, as if they are caught in the throat, it feels laborious. If the frequency response of the microphone is uneven and the curve is too large, the human voice will become weird, the reduction will be poor, and the sound will be unnatural. There is a solution: use a microphone head with a wide frequency response, no sound, and moderate sensitivity. Microphone). If it is a wireless microphone, it has to be considered as a whole, because the quality performance of the transmitter and receiver can affect the sound quality, not just the problem of the microphone core.

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