Today Xiaobian brings you the relevant content of the computer small sound . The computer small sound is an important part of connecting the computer's external settings. Fast paced life, heavy pressure, how good it would be if you could have comfortable music when you got home. It's best to connect a small speaker to your computer. Then you know how to buy a computer stereo? The following small series will introduce you how to buy a computer stereo:
First, the purchase of computer small sound
1. Frequency response, the hearing range of the common human ear is the sound with a frequency of 25Hz-20KHz. Therefore, the frequency of the speaker should be at least 45Hz-20KHz to ensure the effective coverage of the human ear. In general, the frequency response of multimedia computer speakers can meet the requirements in the range of 40Hz-20KHz.
2. Harmonic distortion, which refers to the sound reproduction distortion caused by the resonance phenomenon generated by the speaker, and the index should be as small as possible.
3. Sensitivity, the higher the index value, the better the performance. The average spirit of an ordinary speaker is generally 70dB-80dB.
4. Output power, including nominal power (ie continuous output power) and peak power (ie maximum output power). The nominal power refers to the maximum output power of the speaker for a long time when the harmonic distortion of the speaker changes within the standard range; the peak power refers to the maximum instantaneous power of the speaker under the condition of no overload. When purchasing, pay attention to whether it is marked with nominal power or peak power.
5. Appearance selection, poor quality speakers are also poor in appearance work. Therefore, it is necessary to carefully observe whether there are bubbles or cracks on the surface of the box, and whether the switch is convenient to operate.
6. Picking from the sound effects, this is the key, focusing on "listening." The specific way to listen is to listen to the current sound. At this time, the audio input line is unplugged and the volume is adjusted to the maximum. The human ear should not hear noise from the speaker about 20 cm, or the noise is very weak. Then play it with the song you are familiar with, listen to the sound, and let the bass sink and not turbid, the treble is bright and not sharp, and the middle sound is mellow. At this time, the volume should not be adjusted too much. The loud volume does not mean that the sound quality is good. Business operations are misleading. Also note that the adjustment knob on the speaker should not have bad contact noise when it is rotated.
7. All kinds of power wiring, switches and plugs on the speakers should meet the safety requirements. If these accessories are fake products, you can imagine that the quality of this speaker is not good.
Second, the computer small audio connection
1. USB power supply, with 3.5 signal plug, USB plug is inserted into the computer USB interface, the signal plug is inserted into the headphone jack, and the volume knob or volume adjustment button can be used. Such a speaker generally does not have a power switch, and the speaker follows the power off after the computer is turned off.
2, battery-powered speakers, just plug the signal plug into the headphone jack, adjust the volume to use. This type of speaker generally uses a rechargeable battery, but also uses a dry battery. If you use a lithium-ion rechargeable battery, you can use the computer's USB interface to charge the speaker.
3. AC power supply, plug the power plug into 220 volt AC when using, plug the signal plug into the computer headphone jack, turn on the power switch to adjust the volume and use it.
4, USB from the sound card speakers, this speaker only needs to plug in the USB interface to play the sound, the computer system automatically turns off the original sound card, the signal is transferred to the new USB connected sound card.
Ok, the above is the introduction of the relevant content of the computer small sound. After reading this article, I believe that you have a certain understanding of the computer small sound. When you buy a computer mini speaker for your home, you may wish to refer to the comments of Xiaobian! If you want to know more about decoration, please continue to pay attention to the decoration home network.
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What if the computer audio has no sound? Cause analysis and solution
How to set up computer audio? Detailed explanation of computer audio setting method
What kind of computer audio is good? Computer audio brand recommendation
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