Wednesday, December 15, 2010

【 Weak current College 】 singing sound design---Power By 【 China power house network 】


Singing, dance halls, discotheques are diverse entertainment, the design-time selection of equipment varies.
General to sing as the main stars, it is in addition to discs and cassettes for accompaniment, some also with the band, so you should have a multi-channel receiver. When you are singing to the microphone and the sound mixer are some of the more demanding. Mixer selection should be based on the band size 12, 16 or 24-channel input. Vocal and jazz drum can choose dynamic microphone, trumpet, saxophone and other wind musical instruments and string instruments often use capacitor microphone. In order to enable a variety of musical instruments to develop their effect, each musical instrument best placed all the way to the microphone, but jazz drum should be placed multiple microphones and microphone and drums, barrels, drums, snare laid around for 10cm distance in order to enable the band to get the best results.
Each stars not only according to their shape and size to the mercy of the location of sound design, but also according to the dance hall reverb time parameter to choose the audio equipment, so the designers on various brands of sound parameters and quality should be very familiar.
The arrival of the speaker, in addition to the main speakers are placed on both sides of the stage, according to the size and height of stars, in the light shed and seat on the lifting aid ceiling speakers. Stage number of za, according to the stage size to determine, in order to make music and singing of peak signal no clipping distortion, the sound must have enough power margin, so the choice of audio, power to bigger is better.
General dance hall sound design simpler, just across the floor to ensure there is sufficient volume.
Discotheque sound design and singing, dance hall sound different. Disco sound features require strong bass power. Because of the strong low-frequency frequency can have a strong sense of rhythm, to stimulate nerves excited to have a sense of pleasure.
Often two to three hundred square meters of disco, the needs of the music on the kilowatt power can guarantee results. In order for the disco guarantee sufficient power and powerful bass, the speaker selection, use of 15-inch, 18 inch and 24-inch large-caliber bass speakers, and standard 4 or 8 subwoofer on the floor provides the bass or subwoofer. In the light tent can be hung on a four-to eight-speaker, speakers, and the dance floor, which not only makes the dancers can enjoy strong music, and make the seat around the dance floor to avoid too much music.
Dance Hall audio configuration matching problem should pay special attention. If the impedance matching, power matching, damping etc. The system is not good, will cause the signal distortion; distortion too large can enable signal into a square wave, and sometimes even cause serious damage to the system.
Power amplifier, speakers, power and impedance matching is a system in the most critical issues. Most professional speakers are equipped with a power overload protection circuit. When the amplifier power is greater than the speaker power, the protection circuit starts to work, and to protect the speakers. So in the amplifier and speaker power matching, amplifier power can be greater than the speaker power, its advantages are power amplifier power margin, can accommodate larger dynamic signal without overload distortion.
On in impedance matching, the amplifier output impedance best and sound the same nominal impedance, such power amplifier power rating can be reached. If the load resistance is greater than the power amplifier output impedance of the amplifier's power output is reduced, easily overload distortion. If the load impedance less amplifier output impedance, the system may be corrupted. Usually to achieve impedance matching, available in series, parallel, or a hybrid approach to implementation.
In short, it is necessary to design a perfect song and dance halls, is not an easy thing, its sound, lighting, decoration, the mercy seat and art design, and overall layout should be coordinated in order to achieve better overall results.

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