Outdoors show and the professional sound that hall of singing and dancing uses, majority is entrance equipment, should say reliability is higher. Main problem is handlers major quality is not neat, the unit that provides eligible tuner truly is very few. The article is aimed at equipment of sound of hall of medium, small-sized singing and dancing to operate a point to have explanation, but the reference as formulate operating rules. Additional, in medium or small the self-excitation howl that hall of singing and dancing causes as a result of mike sound feedback makes an appearance, it is the problem that the common person that make use headaches, because often appear,howl makes can make guest feel disappointed, acoustics have no way is mentioned, serious person can cause equipment breakdown. So, self-excitation howl makes seem acoustics of hall of singing and dancing to use a medium serious problem now, narrate respectively below.
One, sound equipment opens, involve engine order
Should press by before the order after arriving switchs on the mobile phone, namely by phonic source equipment (CD machine, LD machine, DVD machine, recorder, videocorder) , frequency handles equipment (pressure be restricted implement, activator, effect implement, scale down implement, equalizer) arrive to frequency power amplifier television, projector, monitor. Involve the order when machine contrary, should close first result put. Such operations can prevent, involve the machine impact to equipment, prevent burn down result to put He Yangsheng implement.
2, the preparation before singing -- debug
1. Result same mix goes to put volume control potentiometer the largest position; Music and mike shunt hair-clippers accompany to answer on sound console park 0dB; Each shunt GAIN inputs gain to all be put in on sound console already the position of mix up; Hair-clippers of sound console total volume first park is the smallest the position (lower end) ; Sound console acoustic quality compensates knob to all put inter position.
2. The experiment accompanies passageway, that is to say, with CD dish or LD dish put song music, a man of virtual and ability sound console urgently jump child earth of high Man look into the distance from a high place, condition arrive, near 6dB, right now singing is mixed accompany music is the volume when regular job roughly; But should notice volume wants measurable and euphonic, loudness makes person exhaustion is mixed easily greatly too bear hard. Diapason member should arrive inside hall effect of different position listen respectfully. Be like stereo acoustic quality of phonic resembling, composition. Puts music order should be the melody that already was familiar with oneself, can adjust volume repeatedly (gain of tone shunt GAIN) compensate with shunt acoustic quality, till phonic effect satisfaction till. To music the requirement of the effect should be to have strength, aesthetic, high cannot harsh, bass cannot muddy, requirement singing is clear, if the tine sound clarity of female voice can be heard. But cannot overweight. 0dB of shunt hair-clippers park, 0dB of park of total volume hair-clippers, adjust button of gain of shunt GAIN input makes AU expresses demonstrative 0dB left and right sides, right now the system achieves rated output power. But when regular job, total volume hair-clippers, kind tone is in, 6dB or, 10dB is the following, be less than rated output power.
Previous12 Next
