As a self-entertainment facility, karaoke is increasingly favored by the public. Professional karaoke is enchanting because its audio and video systems use professional audio equipment. As a family, due to financial constraints, space constraints, etc., most choose home equipment, of course, not to say that home equipment can not do karaoke. Here are some tips for you. The beam splitter reflects part of the incident light energy, absorbs a relatively small part, and transmits the rest of the energy. The beam splitter has obvious neutral color characteristics. The beam splitter is made by vacuum evaporation of a multilayer dielectric film. There is no problem that the metal film will absorb. The total penetration and reflection ratio is close to 100. Function: It is made by vacuum evaporation method, and the light can be changed after passing through the filter. The penetration ratio, for example: half penetration and half reflection, with low absorption characteristics. Glass Optical Filter,Optic Filter Ir,Macro Optic Filter,Optical Glasses Filter Bohr Optics Co.,Ltd , https://www.bohr-optics.com
First, choose the sound source. For now, the affordable VCD DVD player. As long as it is a professional manufacturer, the quality is reliable and the difference is not big.
Second, choose a karaoke machine. Although most VCD players and amplifiers have karaoke functions, these effects are unsatisfactory. There are not enough of them. First, there is only a single delay or echo; second, there is no high and low frequency compensation for the microphone sound quality; third, the accompaniment volume and microphone volume cannot be adjusted separately. Therefore, in order to enjoy the real karaoke, you must have a karaoke machine. Of course, if the conditions permit, the total path actuator should also be configured.
Third, the microphone selection. Some users tend to spend a lot of money on speakers and amplifiers, and they are very embarrassed in terms of microphones. This is really a pity. The microphone is the key equipment in karaoke. If the microphone is not properly selected, the whole effect will not be discussed. Imagine that the song is dull, thin, distorted, easy to whistle, and where to enjoy. So in karaoke, the choice of microphone is not sloppy. A heart-shaped, super-cardiac dynamic microphone should be selected. Don't be afraid of it. If you use it, you will understand that it is different.
Fourth, equipment adjustment. There are two main aspects. First, the sound quality of music and microphones is adjusted. This requirement is relatively high. Because each person's voice line is different, the tuning should be based on the singer's tone to be targeted for high and low frequency compensation. If the user does not understand, then as long as the "male sound slightly raises the high frequency, the female voice slightly raises the low frequency. Second, the ratio of the accompaniment volume and the song volume. The author believes that the family is not strictly regulated (professional karaoke is exquisite) It can be determined according to personal preference. Because there is an auditory difference, that is, the auditory difference between the audience and the singer. The audience hears the live sound field, and the singer hears the live sound field minus the singer from the inside of the human body. The singing sound field that reaches the eardrum. In this way, according to the audience's request, the singer will feel that the singing is not enough, and the accompaniment sound is loud. In view of such hearing differences, the adjustment will vary from person to person.
When the laser power that needs to be measured is far greater than the power/energy meter measurement range that can be provided, a beam splitter can be used.