Microphones are essential in meeting and KTV methods, but would you know the 4 factors of procurement?
- Par bnhyu
- Le 11/03/2021
- 0 commentaire
In order to raised clear up the problems supporters come across in their daily life regarding audio tools and devices, Silver Mall has arrange a different Q&A area. If you have any questions you want answered, we can send a private message and Silver Mall will invite some industry insiders to answer your questions.
Today we chose this question that is often asked in the background:How do professionals choose microphones? Next we invited Wu Gong of Enping Pasigao Electronic Technology Co., Ltd. to answer this question.
First: How can ordinary consumers distinguish quality and effect when buying microphones?
1, from a visual point of view, to see whether the product design companies have a unique design teaching style, or with many similar products on the market development are we the same appearance, if the Chinese products have their own design different style and fit the consumer favorite is through a national quality indicators.
2, microphone materials and production processes, materials generally have all-metal, metal-plastic parts mixed and all-plastic three categories, but the specific product design style, cost and process implementation difficulties to determine, usually consumers can use the actual use of the feeling to define the texture of the product.
3, microphone key operation is relatively smooth, the key touch feels good, operational reliability is considered a superior quality product.
4、As a consumer, the microphone sound quality is judged to be good or bad mainly by the sense of hearing.
5, the stability of the sound transmission and the effective transmission distance of the microphone, consumers can pick the right logo products according to their own use requirements, here is not the farther the transmission distance the superior, but in the logo of the effective use of the distance of the signal without interruption, no interference, no noise is a quality product.
Second: What are the indicators that professional users value more in a microphone?
Generally speaking, the human ear can hear the minimum sound and maximum sound range is 0 to 120 decibels (dB), microphones also have a recording volume range, we call the electric frequency difference, that is, the dynamic range. Microphone parameters are generally marked as Max SPL and E.I.N (maximum sound pressure and bottom noise), the latter minus the former is the dynamic range of the microphone, for example, Max SPL 130 dB SPL and E.I.N 16 dB, so the receiving range is 114 dB. If the bottom noise is too high, the sound is weak, it must be very close to the source, otherwise it is simply impossible to record below the bottom noise Otherwise, it will not record at all. So the wider the dynamic range the better, but the price may be higher.
2, frequency response
We talked about the dynamic management range research mainly through the microphone can technically accept the input volume decibel range, while the frequency response (Freqency Response) refers to the microphone to different operating frequencies and the volume of the sound response. The microphone's frequency analysis response time range is between 20Hz and 20kHz, the greater the range of application of this value, the superior the microphone, in the sound of post-production effects processing will also have some help. The microphone with good frequency response, if there is a show curve, you can find the line is flat in time, that is, in most students can directly respond to the frequency of the main nearly equal radio effect, very suitable for China to include the real ambient sound. Of course, some of the microphones used to record specific ethnic instruments or vocals may have different frequency response countries, but that is another is a study of professional issues.
3: What are the main advantages of the mainstream wireless U-segment microphones?
1, u section, also known as uhf, is a high frequency receiver, generally defined as 500mhz-900mhz frequency, with stable, strong anti-interference ability, long receiving distance, etc. 2, the cost is more expensive, generally used for demanding occasions, suitable for unified use of multiple sets of installation, usually can be divided into multiple frequency bands, to achieve the same occasion multiple machines multi-frequency use without interference.