source:Industry News release time:2022-06-07 Hits: Popular:Brand bar audio wholesale
China's audio has been developed for more than 20 years. So far, there is no clear judgment standard for the sound quality of audio equipment. It is still judged by one's own subjective consciousness. The quality of sound is good, but the factors that affect the sound of audio equipment can be clearly determined, so what factors will affect the sound of audio equipment? Listen to what Jazzlong professional audio manufacturers have to say:
1. Signal source
The function of the power amplifier is to amplify the weak level signal source and output it to the speaker, and then the sound of various frequencies is emitted by the vibration frequency of the speaker unit in the speaker, that is, the high, medium and low frequencies we hear. The source has noise (distortion) or some signal components are lost after compression. After being amplified by the power amplifier, these noises will be amplified even more, and the lost components will not be released. Therefore, the sound source used when we evaluate the sound is good. Bad is critical.
2. The equipment itself
That is to say, the power amplifier should have a high signal-to-noise ratio, a wide effective frequency response, and a low distortion degree. There are very few speakers that can reach 20Hz--20KHz+3%dB. There are many speakers on the market that say that the high frequency can reach 30 or even 40KHz, which shows that the sound quality is constantly improving, but our normal ears Signals above 20KHz are difficult to distinguish, so it is not necessary to pursue some ultra-high frequencies that we cannot hear. Only with a flat frequency response width curve can the original sound be reproduced realistically. The power depends on the size of the area used. To be proportional, if the area is too small and the power is too high, a large sound pressure will cause too much reflection sound, making the sound turbid, otherwise the sound pressure will not be enough. The power of the amplifier should be 20% to 50% larger than the power of the speaker in impedance matching, so that the bass will be stronger and stronger, the mid and high frequencies will be clearer, and the sound pressure will not be so easily distorted.
3. The user itself
Some people buy stereos for decoration, some to enjoy music, and some to show off. To put it simply, if a person can’t even distinguish between high and low frequencies, can he hear what is good sound quality? You have to be able to listen to it. After some people have installed the audio, the installation technician will adjust the effect and simply talk about it. The result is that one day someone accidentally moved some knobs. The effect can be imagined. It is not meant to be Knowing what technology, just like when we drive a car, we must at least understand what switches, buttons, and knobs do, in order to give full play to the performance and safety of this car.
4. Use environment
Everyone knows that when there is no occupant in an empty room, high-fives and echoes are particularly loud when speaking. This is because there is no sound-absorbing material on the six sides of the room or the sound-absorbing material is not enough, resulting in reflected sound. The same is true for the sound. If the sound absorption is not good, the sound will be unpleasant, especially if the sound is slightly louder, it will be muddy and harsh. Of course, some people say that it is impossible to set up a professional audition room at home. For example, hanging an embroidered picture on a large wall is good-looking and sound-absorbing, hanging a thicker cotton curtain on the glass window, and then laying a carpet on the ground, even if it is a decorative carpet in the middle of the ground. The effect will be unexpected. If you want to do better, you can hang some soft and matte decorations on the wall or ceiling, which is not only beautiful, but also reduces reflections, killing two birds with one stone.
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