How to judge the sound quality
Update：2017-07-19 View ：4314
1、 Touch
To get the speaker, first touch it in your hand to get its first impression is the most important. First of all, if you put the speaker in your hand, it feels heavy. If it is a dual channel speaker, one will be heavier, because it has built-in power amplifier circuit and power transformer. If it is light, it is suspected of cutting corners; Secondly, the sound quality of wooden box is higher than that of plastic box, and the thicker the box, the better.
When touching, in addition to touching its weight, you should also check whether the workmanship of various knobs, switches and plugs is exquisite, especially whether the joints of the box are tight and polished smoothly. For the box body with the appearance of wooden speaker, it is necessary to strictly prevent the medium density board used, and check whether the skin on its surface is flat, etc. If there are irregularities, we can basically judge the workmanship level, which is also a great reason for our price reduction.
2、 Look
Look, the main thing is not to be confused by the appearance. In order to attract users, some speakers imitate famous brand speakers to make the appearance very beautiful. In fact, at this time, we should pay special attention to the details. The quality of speakers that blindly rely on appearance rather than fine quality will not be very good.
Check the diaphragm material when looking. At present, there are many manufacturing materials of loudspeaker diaphragm. When purchasing, refer to the principle of hard and soft, not soft and rigid. Secondly, it depends on the unit aperture of the speaker. The larger the aperture, the higher the sensitivity, and the low-frequency response effect is also excellent.
3、 Listen
After the basic test of the speaker, we will listen to its actual sound effect. The first step of listening is to check the current sound, that is, only connect the speaker power supply, and then turn the volume to the maximum. Since there is no audio input at this time, the smaller the sound you hear, the better; When testing the sound quality, it is recommended to adjust the volume to about 2 / 3. Different test sound sources shall be selected for different sound quality of the test speaker. If the test sound source is of high quality, CD is generally selected, among which cello music can be selected for testing bass, human voice can be used for testing Alto, violin music can be used for testing treble, and dance music with strong sense of rhythm can be selected for dynamic testing. Try not to use the sound source recommended by the manufacturer during the test, but use the sound source prepared by yourself.
When listening, you should also try the penetration of the speaker. Good speakers have extremely high penetration. When testing penetration, you can artificially set some noise, and then see if you can clearly hear the test sound source. It should be noted that the sound source is not heard because the sound is high, but has high penetration. It is like screaming. Although it is in a chaotic environment, people can hear it clearly.
4.
It should be said that after touching, watching and listening, the quality of the speaker can be basically judged. Of course, in the actual test process, there will be some errors due to the limitations of test conditions and environment. Therefore, it is particularly important to change several stores for testing, especially to buy high-end speakers.
To get the speaker, first touch it in your hand to get its first impression is the most important. First of all, if you put the speaker in your hand, it feels heavy. If it is a dual channel speaker, one will be heavier, because it has built-in power amplifier circuit and power transformer. If it is light, it is suspected of cutting corners; Secondly, the sound quality of wooden box is higher than that of plastic box, and the thicker the box, the better.
When touching, in addition to touching its weight, you should also check whether the workmanship of various knobs, switches and plugs is exquisite, especially whether the joints of the box are tight and polished smoothly. For the box body with the appearance of wooden speaker, it is necessary to strictly prevent the medium density board used, and check whether the skin on its surface is flat, etc. If there are irregularities, we can basically judge the workmanship level, which is also a great reason for our price reduction.
2、 Look
Look, the main thing is not to be confused by the appearance. In order to attract users, some speakers imitate famous brand speakers to make the appearance very beautiful. In fact, at this time, we should pay special attention to the details. The quality of speakers that blindly rely on appearance rather than fine quality will not be very good.
Check the diaphragm material when looking. At present, there are many manufacturing materials of loudspeaker diaphragm. When purchasing, refer to the principle of hard and soft, not soft and rigid. Secondly, it depends on the unit aperture of the speaker. The larger the aperture, the higher the sensitivity, and the low-frequency response effect is also excellent.
3、 Listen
After the basic test of the speaker, we will listen to its actual sound effect. The first step of listening is to check the current sound, that is, only connect the speaker power supply, and then turn the volume to the maximum. Since there is no audio input at this time, the smaller the sound you hear, the better; When testing the sound quality, it is recommended to adjust the volume to about 2 / 3. Different test sound sources shall be selected for different sound quality of the test speaker. If the test sound source is of high quality, CD is generally selected, among which cello music can be selected for testing bass, human voice can be used for testing Alto, violin music can be used for testing treble, and dance music with strong sense of rhythm can be selected for dynamic testing. Try not to use the sound source recommended by the manufacturer during the test, but use the sound source prepared by yourself.
When listening, you should also try the penetration of the speaker. Good speakers have extremely high penetration. When testing penetration, you can artificially set some noise, and then see if you can clearly hear the test sound source. It should be noted that the sound source is not heard because the sound is high, but has high penetration. It is like screaming. Although it is in a chaotic environment, people can hear it clearly.
4.
It should be said that after touching, watching and listening, the quality of the speaker can be basically judged. Of course, in the actual test process, there will be some errors due to the limitations of test conditions and environment. Therefore, it is particularly important to change several stores for testing, especially to buy high-end speakers.
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