Why are my computer speakers humming?

Listening to popular melodies through speakers is a pleasure not only for music lovers, but also for ordinary users of audio equipment. While working or relaxing, a person turns on music and gets positive emotions from hearing familiar rhythms. The presence of excess noise when playing music introduces discomfort and irritation from interference emitted by audio equipment.

Why are my computer speakers humming?

The use of such an attribute when listening to melodies recorded on office equipment has become popular since its inception. Noise in speakers most often occurs due to the presence of magnetic fields from wires connected to the back of the monitor or system unit. But there are other possible reasons:

• lack of shielding on the cable;
• poor wave reflection screen on the amplifier (inside the housing);
• lack of grounding;
• the mixing system is not configured;
• speaker malfunction.

All of these factors affect the sound quality and can cause excess noise emitted by speakers connected to the computer.

Why does a regular speaker hum?

The occurrence of extraneous sounds in stationary speakers intended for audio systems may be due to the same reasons as for computer attributes.In addition, there are other reasons for noise:

• malfunction of the amplifier board or its elements;
• poor placement of the speakers relative to the signal source;
• mismatch between amplifier or equalizer settings and speaker characteristics;
• movement of the sound source with periodic noise, this often occurs when using a microphone.

The majority of speakers designed to convert an audio signal are equipped with a protective shield against magnetic fields. When faced with stationary broadband acoustics that do not have the required protection, the user immediately hears unnecessary sounds that arise constantly or periodically when connected to the network. Such equipment is usually installed on the floor, which can also cause annoying sound vibrations.

How to get rid of unpleasant sound

To remove noise, it is necessary to determine the cause of its occurrence. Diagnostics and fault detection will allow you to find and eliminate the defect. First of all, with the speakers turned on, touch the wires through which the signal travels with your hand. If at the moment of touch the noise fluctuations change, then the cable is not shielded enough. It is wrapped in foil or replaced with a new one - shielded.

ATTENTION! The use of a stationary wire, the braid of which contains a protective shield, will protect sound from magnetic fields of any origin! The foil may not cope with all sources of radiation and may collapse with small movements.

The speaker amplifier located inside the case is more difficult to shield. To carry out such activities, the attribute is disassembled and foil is attached to all internal surfaces, except for the one through which the sound comes out of the speakers.To identify board malfunctions, it is carefully inspected for burnt or open contacts, as well as possible swelling of the capacitors. If such a deficiency is identified, it is eliminated, after which the column is turned on and checked.

REFERENCE! The occurrence of noise can be associated with magnetic fields not only of the connection wires, but also with other cables, for example, a connection to a mouse or something similar.

Speakers located at the same level as a computer or audio system may hum due to magnetic waves emitted by the system unit or amplifier. To eliminate such noise, the speakers are installed higher and checked for noise. Floor-standing speakers, in such a situation, are installed on special stands or used furniture.

Lack of grounding in the connection network can also cause unpleasant sound vibrations. To eliminate this shortcoming, first check for the presence of grounding; if there is none, fix the contacts on the connection connectors. If this is not possible, connect the body of the office equipment to the battery with a wire, due to which this drawback is eliminated.

One of the reasons for the appearance of noise may be incorrect speaker connection (mixing) settings. To set the parameters correctly, you need to use the “Control Panel” start menu to find the “Sound”, “Playback”, “Properties” and “Levels” tabs. In the last of them, the line input function is disabled. After this, the performance of the speakers is checked.

The amplifier or equalizer settings must also correspond to the technical data of the connected speakers. Adjusting the parameters can be entrusted to a specialist if you do not have your own experience in performing such work.

If the methods described above do not change the situation and the noise does not stop, then the problem lies in the speakers themselves. This may be a malfunction or very low quality of the product.

What is the reason if the speaker does not hum all the time, but sometimes makes a loud sound?

When using a microphone in close proximity to speakers, a sharp whistling sound may be heard. This is due to the lack of protection on the microphone and its movement relative to the speaker. The temporary appearance of noise can be caused by the electric field of devices and wires that are located in another room.

ATTENTION! Lack of proper protection can cause noise even when a neighbor turns on various electrical appliances, the supply of current to which is accompanied by the action of electromagnetic waves.

To avoid unpleasant sound, the speakers are reliably protected, and when using a microphone, keep it at a safe distance and do not turn towards the speakers.