1. Background noise: The KTV private room is not like a recording studio, and the background noise fills the entire room. The noise is too high, which increases the listening range of the signal, destroys the sound quality of the sound signal, and causes a decrease in clarity and intelligibility. External noise requires sound insulation and internal noise needs to be controlled when selecting equipment. The lower the background noise, the better.
2. Reverberation time: The length of the reverberation time of the KTV private room and the reverberation intensity have a great influence on the sound quality. When the time is long, the sound will be turbid, affecting the clarity and intelligibility; if the reverberation time is too short, the sound will be very dry and squeaky when singing, lacking brightness and feeling thick. For the KTV private room to sing easily, there is no feedback (howling).
3. Diffusion: Diffusivity is an important indicator of the acoustics of today's KTV rooms. The uniformity of sound diffusion means that the sound pressure level at each point is controlled within a certain range, which requires that the sound is evenly distributed in the private room under a certain sound amplification gain.
4, frequency response characteristics: KTV private room decoration materials will produce different sound absorption characteristics. The difference in absorption and reflection creates a problem of frequency response. The rational environment is that the sound field in the private room should be more evenly reflected and absorbed for each frequency. Otherwise distortion and distortion will occur.
5, sound focus: When the sound wave hits the concave interface, the sound will produce a sound focus phenomenon. The sound is particularly loud at a certain point, and the sound pressure in the room is uneven. Seriously, it is impossible to sing in this area. When the microphone is taken here, it will produce a howling.
6. Sound shadow area: It is because the object (obstacle) in the compartment blocks the area where the sound should be radiated. The sound pressure level in this area is significantly lower than in other areas. Causes uneven sound diffusion. Reasonable decoration can use the sound and shadow area to set up a relatively independent bar area or private area.
7. Clarity: The clarity of KTV rooms is a very important indicator. For music, clarity refers to the layering of sound, the intensity of sound and the positioning of sound image. Different sound sources have different requirements for clarity. We sing our own songs in the private room, first of all the clarity of the singer.
8. Acoustic dyeing: Different materials and structures in the private room will cause acoustic dyeing. Since the sound encounters different reflectors when it is diffused, when the reflection interface or the reflection resonates, the original sound is added with no timbre component, thereby changing the sound quality of the sound is sound dyeing. We should avoid acoustic dyeing in the selection of materials and construction work.
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