Why do speakers make noise when your phone rings?

 

Surely you have ever wondered why the strange sound that appears when your phone rings next to one of the speakers in your house or even when you receive messages! But what is the rationale for these strange sounds? In fact, having a cell phone around the speakers can cause some intermittent buzzing and buzzing. That is, a cell phone may cause hum or noise on the speakerphone while transmitting data to and from the phone (communications of all kinds).

 

However, one of the most puzzling behaviors of phones is their effect on nearby speakers when they ring. The reason for this overlap can be a great puzzle for us. But it has a logical reason and is not as ambiguous as we expected! Simply put, the transfer of information and data results in electromagnetic disturbances in the environment surrounding the loudspeakers, which leads to noise in the sound, and thus buzzing or buzzing in the sound produced by the speaker. But let's dig deeper in this article, about the reasons for the appearance of these sounds and how to avoid them.

 

Cause of loudspeaker noise when receiving signals

 

Explaining the process in simple terms, you should start by understanding that every phone is essentially a radio transmitter, that it transmits pulses of digital signals and data files to the base station (the tower) so that communication can take place, and on the other hand it receives these signals from the tower. In contrast, the wiring inside most amplifiers is not shielded from this type of frequency, and there is usually a nonlinear circuit element (a transistor) inside the amplifier that detects high-pulse radio signals.

 

The element in the speaker then corrects (translates) those radio signals into audio signals, which are in turn heard noisily through the speaker, as well as at a lower level than the sound previously played through the speakers. In fact, this doesn't always happen, although there are certain types of phones that will energize unpowered speaker circuits. But some evidence suggests that lower-end phones are less powerful and interact less dramatically with speaker antennas.

 

In more plain terms, there is an antenna inside the speakers that pick up the radio signals sent from the base station to the cell phone when someone calls you; The atmosphere around you is all wireless signals so that your brain can receive one of these signals, let alone the loudspeakers! This antenna picks up that signal and generates noise from the speakers, and it will continue to do so until the phone call ends. That is when the transmission of radio signals stops.

 

So, what are the ways to avoid this noise?

 

There are some easy ways to prevent that annoying sound from happening when you have a cell phone and speakerphone nearby. It may sound logical, but the best way to get rid of annoying noise from speakers is to simply move your phone away (depending on the signal strength and speaker type). The overlapping range is usually only a few feet but can be up to a few inches in some cases. So if you want to prevent it from happening at all, you simply need to invest in the right type of speaker—that is, ones of good enough quality that have shielded cables.

 

It is also preferable to use amplifiers that have digital inputs and will not react in the same way as older speakers. You can also protect your speaker, which is in the subwoofer of most cheap speakers. By wrapping the speaker in foil and grounding it, you will be able to avoid interference noise.

 

There are also different types of phones that behave differently in these radio signal situations. For example, GSM phones with the TDMA (time division multiple access) standards are notorious for damaging radio signals going to nearby loudspeakers, while CDMA (code division multiple access) phones are notoriously bad. It is a protocol mainly used in the United States of America and a few other countries. One isn't necessarily better than the other, because the building penetration powers of CDMA and TDMA phones may be different, but if the sound of glaring interference drives you crazy, you know which company to turn to anymore!

 

Finally, in the midst of this strange and annoying noise generated by the speakers. The best and easiest solution of course is to keep your phone in your pocket, and try not to stand next to a cheap speakerphone if you are expecting a call or a message!