Sound development has been for many years, but judging whether the sound is good or bad is basically based on everyone's ears. Because personal preferences are different, the quality of sound quality has not been a clear criterion, and it can only be based on numerous reflections. Data and word of mouth to represent the sound of the sound brand. Whether listening to music, singing karaoke, or watching a movie, the quality of the sound depends mainly on the following factors:

1. signal source

We know that the function of the amplifier is to output the weak level signal source amplifier to the speaker, and then the frequency of the speaker unit in the speaker vibrates to produce various frequencies, that is, the high, medium and low frequencies we hear, if The signal source has noise (distortion) or some signal components are lost after compression. After the power amplifier is amplified, these noises will be amplified larger, and the missing components will not be released. Therefore, the sound source used in our evaluation of the sound is used. Good or bad is also very important.

   Reasonable combination of audio system equipment can bring out the advantages of the brand, that is to say, the power amplifier should have high signal-to-noise ratio, wide effective frequency response and low distortion. The effective frequency of the speaker should be wide, the frequency response curve should be flat, and the frequency response should be flat. The sound that can reach 20HZ---20KHZ can be said to be very good. Usually, the signal of our normal ears over 20HZ is difficult to distinguish, so it is not necessary to pursue some ultra-high frequencies that we can't hear. Only the frequency response is wide. The flat curve can realistically reproduce the original sound, and the power depends on the size of the area used. To be proportional, if the area is too small, the power is too large, the sound pressure will cause too much reflection, making the tone become turbid, and vice versa. The power of the amplifier is 20% to 50% better than the power of the speaker in the impedance matching. The bass will be strong and powerful, and the middle and high sound levels will be clearer. When the sound pressure is large, it is not so easy to be distorted.

2. User itself

Some people buy audio for display, some people want to enjoy music, and some people are for a kind of glory. The popular point is to see others buy a set of brand audio, and quickly buy a set, there is no To understand the advantages and disadvantages of each brand, what brand of audio is more suitable for listening to music, what brand of audio is more suitable for watching movies, what brand of audio has an advantage when singing. So before you buy, you should be clear about the one you usually pay for, and choose the one that suits your needs. If a person can't hear the high and low sounds of the sound, then it is impossible to hear what is good sound quality, except that it will be used. After the audio is installed, the audio tuner will use technical means to adjust the ratio of each equipment to a reasonable state. If one day accidentally curious to move some buttons, the effect can be imagined. This is not to say that you have to know the technology to buy the sound, just like we drive at least to understand the various switches, buttons, knobs what role, in order to play the performance and safety of the car.

3. Use environment

Everyone knows that when there is no room for people in the empty room, the echo is very loud when they are high-pitched and talking. This is because there are no sound-absorbing materials or sound absorption on the six sides of the room. The sound is the same. If the environment is not good, the sound will not be good, especially if the sound is slightly louder, it will be very turbid. Of course, some people will say that the home is impossible to do like a professional audition room. Hanging an embroidered picture on a large wall is good-looking and sound-absorbing, such as hanging a thick cotton curtain on a glass window, or laying a carpet on the ground. The effect will be unexpected. The positioning of the speaker will also affect the sound quality, and the sound field can also determine the sound quality. As the name suggests, if you drive the BMW to the rice field, you may not be able to outperform the tractor.