Why does the small speaker have a strange sound

There are many situations that will cause noise in the computer audio, such as the speaker is interfered with, the interface or connection line is not in good contact, and the sound itself is of poor quality.

Generally speaking, computer audio is mostly active speakers, and there will be amplifiers inside, so noise is inevitable, and the noise of active speakers can be roughly divided into electromagnetic interference, mechanical noise and thermal noise.

Electromagnetic interference can be mainly divided into power transformer interference and stray electromagnetic wave interference. Generally speaking, the power transformer interference is caused by the power flux leakage of the multi-speaker speaker, and the effect of installing a shielding cover for the transformer is very obvious when conditions permit, which can block the magnetic leakage to the greatest extent, and the shielding cover can only be made of iron materials. We should try to choose products with big brands and solid materials, and in addition, using external transformers is also a good solution.

Stray electromagnetic interference is common, and speaker wires, crossovers, wireless devices, or computer hosts can all become sources of interference. Keep the main speaker as far away from the computer as possible and reduce the number of peripheral wireless devices.

Mechanical noise is specific to active loudspeakers. During the operation of the power transformer, the core vibration caused by the alternating magnetic field will produce a mechanical noise, which is very similar to the humming sound emitted by the ballast of a fluorescent lamp. Choosing the best product is still the best way to prevent this noise.

In addition, we can add a rubber shock absorber between the transformer and the fixing plate.

It should also be noted that if the potentiometer is used for a long time, the contact between the metal brush and the diaphragm will be poor due to dust accumulation and abrasion, and noise will be generated when it rotates. If the screws of the speaker are not tightened, and the inverter is not handled properly, mechanical noise will also be generated when the **big dynamic**.

This thermal noise can be dealt with by replacing low-noise components or reducing the working load of the components, and reducing the operating temperature is also one of the most effective methods.

In addition, some computer speakers, when the volume is turned up too much, there will also be noise. This situation is caused by the fact that the output power of the power amplifier may be small, and it cannot avoid the large dynamic peak signal at the moment, or because of the overload distortion of the horn.

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It is possible that the filter capacitor is broken.

There is always a buzzing sound in the stereo and it is quiet, and there are several situations:

1. If you are not connected to the computer, turn on the speaker, and in the absence of any signal input, the speaker with qualified quality will not produce static noise; If there is noise at this time, it means that the audio power amplifier of the speaker is of poor quality, and the speaker needs to be sent to the after-sales office for maintenance.

2. Use the audio signal cable to connect the electric trap and brain, turn on the speaker, in the case of no ** sound or MIC recording, the speaker will not produce noise; If there is noise at this time, there are several reasons for the fault

If the signal ground shielding is poor, the signal line can be replaced.

If the computer motherboard is poorly grounded, the computer motherboard needs to be installed and grounded;

If the sound card is faulty, you need to replace it with a new one.

3. External interference, such as putting your hand near the speaker, and incoming calls and information entering the mobile phone, will produce noise.

4. There may be a problem with the driver, you can try to update the sound card driver.

If you want the speaker to work well, good usage habits are also very important.

1. Turn the volume knob of the speaker to the lowest before opening the speaker every time you open it, and do not suddenly turn up the volume knob during daily use, so that we can prevent excessive audio signals from impacting the speaker unit and damaging the speaker.

2. When using the computer, we should pay attention to prevent the sound of the speaker from entering the microphone to form acoustic feedback, and then produce high-frequency whine. Such a high-frequency howl can easily damage or even burn out the loudspeaker's high-frequency unit.

3. Try not to idle the speaker for a long time, use it at least several times a month, and use it for at least one hour each time. Especially in the high temperature and humid season, this can allow the components in the box to drive away moisture by heating when they are working, and at the same time, we can also prevent some problems such as material static fatigue and electrolytic capacitor leakage.

4. When the speaker is not in use, it is best to cover the speaker with a dry cloth to prevent dust from falling into the gap of the speaker shell.

There are several situations in which noise is generated:

1. Poor contact of connecting wires;

2. Poor quality of connecting wires;

3. Mixed use of AC and DC (mutual interference);

4. The treble or volume is turned on too high.

components

The sound system generally includes:

1. Sound source equipment (***, cd, ***, MP4, computer, mobile phone, microphone and other sound source output equipment);

2. Audio signal dynamic processing equipment (compressors, effects, mixers, audio processors, equalizers and other audio signal processing equipment);

3. Audio signal amplification equipment (analog power amplifiers and equipment such as pre-power amplifiers, post-power amplifiers, and digital power amplifiers);

Specifically, it includes power amplifiers, peripheral equipment (including limiters, effects, equalizers, exciters, etc.), speakers (speakers, speakers), mixers, sound sources (such as microphones, musical instruments, VCD, ***) display equipment, etc. Among them, the speaker is the sound output device, speaker, subwoofer, etc., a speaker includes high, low, medium three kinds of speakers, three but not necessarily three.

Summary. In response to this problem, the following solutions can be taken: first, check whether the connecting cable of the small speaker is loose, if it is loose, it can be reconnected; Secondly, check whether the power supply of the small speaker is normal, if not, you can replace the power supply; Again, check whether the right channel of the small speaker is damaged, if there is damage, the right channel can be replaced; Finally, check whether the volume adjustment of the small speaker is normal, if not, you can adjust the volume again.

The above is the solution to solve the problem of the right channel of the small speaker, it should be noted that when checking the connection cable, power supply, right channel and volume adjustment of the small speaker, it is necessary to operate carefully to avoid damage.

There is a clicking sound in the right channel of the small speaker, and sometimes it is very loud.

In response to this problem, the following solutions can be taken: first, check whether the connecting cable of the small speaker is loose, if it is loose, it can be reconnected; secondly, check whether the power supply of the small speaker is normal, if not, you can replace the power supply; Then fiber collapse the lease, check whether the right channel of the small speaker is damaged, if there is damage, you can replace the right channel; Finally, check whether the volume adjustment of the small speaker is normal, if not, you can adjust the volume again. The above is the solution to solve the problem of the right shirt posture channel of the small speaker, it should be noted that when checking the connection cable of the small speaker, power supply, right channel and volume adjustment, it is necessary to operate carefully to avoid damage.

I'm sorry I don't understand, but can you elaborate on that?

First of all, it is necessary to check whether the connecting cable of the small speaker is in good contact, if the contact is not good, it may lead to the generation of rattling sound. Secondly, you can check whether the volume of the small speaker is too large, if the volume is too large, it will also lead to the generation of rattling sound. In addition, you can also check whether the right channel of the small speaker is damaged, if the right channel is damaged, it will also cause a rattling sound.

If you find that the connection cable of the speaker is not in good contact, you can try to replace it with a new cable, or check whether the cable is damaged, if it is damaged, you can try to replace it with a new cable. If you find that the volume of the small speaker is too loud, you can try to lower the volume to avoid damage. If you find that the right channel of the small speaker is damaged, you can try to replace the right channel with a new one, or check whether the right channel is damaged, if there is damage, you can try to replace the new right channel such as liter.

In addition, when using small speakers, care should also be taken to avoid placing them in a humid environment to avoid causing damage, and also to avoid placing them in a high-temperature environment to avoid damage. In addition, care should be taken to avoid placing in a vibrating environment to avoid damage.