Traditional Culture Encyclopedia - Hotel franchise - What stereo is good for KTV?

What stereo is good for KTV?

Although good acoustics can be applied to most occasions, there is still a difference between the acoustics of private rooms in entertainment centers and the acoustics of commercial performances.

Nowadays, the singing function of karaoke is generally the first priority of private room acoustics. Although there are also some Hi room stereos (professional big boxes with edge bass to increase power to drive horn tweeters), they should also be able to sing Hi.

For high-grade private rooms, speakers must be clean in sound quality, bright and clear in hearing, rich in details, soft and elastic. Because the space in the private room is relatively small and the seats are close to the speakers, if the sound quality of the speakers is rough, it will be harsh, making it impossible for people to sit in the room for a long time, and it will be very difficult to talk and communicate.

As far as dual-frequency KTV speakers with rubber-rimmed bass and paper cone treble are concerned, 8-inch and 6-and-a-half-inch speakers have relatively good singing skills, and such caliber speakers have relatively sufficient intermediate frequency energy to highlight human voices, but the 8-inch and 6-and-a-half-inch speakers with single bass have lower power and can only meet the needs of small rooms.

If the room space is large and the music bass is not deep enough, you can add ultra-low speakers. However, the sound (microphone sound) is best not to enter the ultra-low speaker, because the ultra-low sound will amplify the sound more abundantly, but it lacks the mellow and bright sense of reality, becomes unclear and has no penetrating power, and makes people feel breathless when singing. In addition, if human voice (microphone sound) enters the subwoofer, the low frequency may also howl (commonly known as flying microphone), and the low frequency howling may make the bass unit "retire" in advance.

If it is a three-band KTV speaker or a professional speaker, the singing skills of 8-inch, 10-inch and 12-inch are good, while the professional speaker has good transient performance and crisp rhythm, but the sound perception is hard, the tweeter has strong directivity and relatively narrow coverage, which is easy to cause howling in private rooms with strong reflection, so it is usually only suitable for large rooms, and generally requires ultra-low speakers to make up for the lack of elasticity and flexibility.

As far as sound is concerned, the sound of pure karaoke bars first pursues bright, clear and natural timbre, because the timbre of speakers is bright, clear and natural, and singing can be relaxed and comfortable. Most people are not professional singers, and their voices are average and neutral, so it is very important to sing easily-only when people can hear their voices more clearly and loudly without much effort will they be satisfied, their emotions will be high, and their desire to sing and express will be stronger.

In addition, bright and clear timbre is of great significance to KTV speakers, because bright and clear audio-visual images are positioned in front, which makes people feel warm, cordial and excited. Bright and clear timbre is also of great significance to Hi room. According to hearsay, bright, clear and natural timbre will make some guests "see" wonderful things, while dim timbre will make people "see" or think of ugly and horrible scenes and things, which will make people unhappy and even make mistakes.

In practice, due to the extremely high sound pressure in the Hi room, the treble can be slightly lowered, the brightness of the music can be sacrificed, and the softness of the music can be increased, so that the conversation between the guests will not be too laborious, and you can also enjoy the fun of "drinking a glass for a change" in the room.

For karaoke hall, KTV combined power amplifier is best with double reverberation, because if the two reverberation effects can be reasonably adjusted, singing will be easier, and if the reverberation of two channels is well used, the sound field can be broadened and the sense of space can be highlighted.

It is best for KTV power amplifier to be adjustable in midrange, because after the middle and high notes of music are pressed down, the concert becomes relatively soft, making the microphone sound clearer, brighter and more prominent, satisfying friends who like soft music. Whether it is a combination amplifier or a professional amplifier, clean, balanced and stable sound is the first choice. Usually, the power of the power amplifier should be 1.3 to 2.5 times the rated power of the speaker.

The power of speakers and amplifiers in Hi room should be sufficient, because the working conditions of Hi room audio and karaoke room audio are very different:

First, only about two-thirds of each K song has a strong low-frequency rhythm, but the dance music (hi song) runs through almost the whole song with a strong low-frequency rhythm.

Second, the average karaoke song takes about 90 beats per minute, while the dance music takes about 120 beats per minute. When the electric energy of the power amplifier puts pressure on the speaker and converts it into acoustic energy, the paper basin and elastic wave of the bass speaker will move back and forth with each beat of the music rhythm. Therefore, Hi room speakers must choose high-stability products that can withstand high power, great dynamics and long-term application, and professional speakers are the first choice.

Most people only pursue the "deafening sound" effect, which can be solved with ordinary professional speakers. High-demand people will like the sound effect of "shocking loud, but bright, clear, soft, natural and not harsh", which makes people "easy to chat", so the professional speakers selected in high-demand Hi rooms have higher performance and quality.

As an investor, it is right to choose a speaker that is "loud, but bright, clear, soft, natural and not harsh" and makes people "chat easily". Because if the sound is loud, but harsh, and it makes people talk hard, then the guests in the room will lose the fun of "pushing a cup for a change and drinking and having fun". Without these pleasures, the sales of drinks will be greatly reduced, and the investment benefit will naturally be greatly reduced!

If the stereo is loud, but the sound quality is not good, even harsh and noisy, people can hardly hear what they mean, so the speaker will hold his breath and the listener will be embarrassed and disappointed.

Whether it's a Hi room or a karaoke room, the flexible and surround sound effect is definitely the best choice. If the voice is hard, it seems to hit people in the chest or face, but people with a certain age and spending power should not sit in the room for a long time.

A good speaker sounds bright, clear and natural. In addition to the above performance, a better speaker will have a distinct feeling, as if the sound is surrounded by people from all directions, allowing people to hear more musical elements and sound details, and feel that bright, clear and soft sound permeates the whole space, with a wide sound field, a strong sense of space, a strong sense of existence and encirclement, and flexibility.

The sound of inferior speakers seems to twist into a piece and rush to people's heads. Although the sound looks "clean", there are always a lot of sound details missing. When the sound is loud, it makes people feel harsh, and the sound shrinks back, dry, hard and dim.

In addition to sound quality and timbre, speakers in entertainment places must have high power. Because of its high power, it can withstand tossing and rough use and is relatively more stable and durable.

Sensitivity is one of the important indicators of speakers, and speakers with high sensitivity are easy to push, so it is correct to choose speakers with relatively large power, relatively high sensitivity, relatively wide frequency response and relatively more balanced curves in the case of natural sound.

The power of the power amplifier should be greater than the rated power of the speaker, otherwise it will not show the calm and thin momentum of a good speaker, and insufficient power of the power amplifier will be more harmful to the stability of the speaker. The sound quality of a good speaker with a good power amplifier is clean and natural, which usually gives people a moist, transparent and distinct hearing, while the sound of a poor speaker with a poor power amplifier is rough, dull, lifeless and with heavy background noise, which will make the sound unclean in practice and make people fidgety.

A good front stage is specially developed for high-class private room acoustics. It can replace mixer, effector, frequency divider, equalizer and many other devices, and even has the functions of excitation and feedback suppression. It is a sharp weapon for tuning the acoustics of private rooms, and it is also the most effective guarantee for the sound quality of private rooms. A good speaker is better than a chicken, and a good receptionist is like salt. Chicken can't taste too good without salt or improper salt.

At present, there are analog and digital DSP in the front stage. The sound of the analog front stage is relatively more real and natural than the digital one, and everyone has listened to it for many years, with a mass base and a large number of loyal fans; The advantage of DSP is its powerful function and strong adjustability, but it also puts forward higher requirements for users' technology.

If the private room adopts DSP digital front stage, the adjustability is stronger. If it is well tuned, the concert effect will be better, singing will be natural and easy, and there will be more choices of sound field modes. You can tune multiple sound fields and reverberation modes with different effects, so that they can be stored and called at any time to meet different preferences and needs of different customers.

The microphone should be chosen with appropriate sensitivity, bright and clear timbre, and true and natural, otherwise, it will be bad to sing, and even worse to sing. Although the microphone may be the cheapest in the system, it is the only device that receives human voice. If you choose it improperly, it will directly destroy the advanced audio equipment and become a fly in the ointment.

Engineering experts should communicate with the owners more, shout out the timbre and effect that local people like according to the requirements of investors, turn decay into magic, and finally reflect the value and significance of technology. Similarly, the relevant person in charge of the investor should take the initiative to communicate with the tuning technician of the audio company and tell the tuning technician the effect requirements of his own place or local people, so that he can have a clear direction for the effect debugging. It doesn't matter if he doesn't know how to express it at all. You just need to take the tuning technician to a KTV room where you think the effect is good, and feel the effect of listening to singing together. Those tuning technicians who are skilled, affectionate and savvy can certainly meet your needs.

The choice of audio is one thing, but the practical application is another. How to adjust the equipment and make everyone happy is an important foundation.