Are you a music enthusiast? Do you enjoy listening to sounds, especially without disturbing the people around you? If yes, getting an earpiece or a Headphone is important for you to enjoy this feature. In earlier times, earplugs require a wire connection to an audio source which could be your phones Computer system, FM radios, iPods and many more.
Now, due to the competition out there in the market, the advent of technology and the fact that it kept on evolving with a lot of innovative ideas, the era of wired earphones starts fading away with the introduction of wireless earbuds. These devices come in different sizes, offers a greater deal of convenience and durability and boast of a high-quality sound that rivals their wired brothers.
Sure, it’s easy to understand how wired earbuds work but how do the wireless earbuds work? That’s a big question, isn’t it? Understanding the working principles of wireless earbud will help you to make most out of the device and maintain its proper working condition. In this post, I am going to show you how wireless earbuds work so you can tweak the device and enjoy your favorite sounds.
Wired vs. Wireless Earbuds
When choosing between wired or wireless earbuds in this current age, going for a wireless Earbud is probably the best option you can ever go for due to its portability and easy to use. With a wireless earbud, you could connect to any other wireless device and listen to great sounds without fiddling with the wires or the fear of damaging the earbud cable (which is one of the reasons why wired cables do not last long).
Wired earbuds have some edge over their wireless brothers in that they are extremely easy to use, do not disconnect due to obstructions nor require frequent charging to power its unit and are more affordable. In some devices, wired earbud act as an antenna or helps to increase the signal receiving strength of an FM radio.
A wireless earbud may not seem as effective as the wired earphone could be. But when you consider its flexibility, portability and the convenience that comes along with using the wireless it would probably be a great option. Most people use wireless Earbuds solely to listen to music, sounds and even for communication. And in this current times, the usefulness of an earbud (be it wireless or not) cannot be overemphasized.
How Do Wireless Earbuds Work
Wireless earbuds or earphones works based on physics principles that you may be familiar with right from high school. To understand the working principle of an earbud, you will have to familiarize yourself with some terminologies such as:
- Infrared Transmission
- Radio signals
- Bluetooth Technology
Any of the wireless listening devices out there uses at least one of this as a means of transmitting sound with each of them having a preference over the other. The best of them all is the one that uses the Bluetooth technology that connects wirelessly to the phone.
Now, I am going to explain these terms to make this article clearer to you.
Infrared is a common electromagnetic wave with lesser wavelengths than the radio waves which is stronger. The Infrared majorly has to do with light. Just the way you use a TV remote, that is how an earbud with infrared transmission technology works. The music source simply sends out the infrared signals which are received and decoded by the infrared sensor of the earbud.
With this technology, there should be no obstruction such as tables or walls between the base (music source) and the infrared sensor of the wireless device as this is enough to cause interference and a break in connection. Which mean that you cannot pocket your device (music source) while you’re making use of the earbuds that use this type of wireless transmission technology. So, you might not be able to use or enjoy uninterrupted sounds with the device where there are so many obstructions.
This works based on radio waves and operates just like your radio. The only difference is that it operates at a higher frequency. It is a frequency modulator rather than being digital, and the interference from others using the same radio device can occur and hamper your flow of hearing.
This also works as the radio signal only that it is a digital technology that operates at a lower frequency to that of the radio and less interference occur. More of this technology is applied or used on smartphones and another digital device.
Using a Bluetooth requires radio waves at a low frequency, and this is made possible by a very small computer chip that transmits the radio waves and connectivity software to connect to other devices. For a device that has no inbuilt Bluetooth technology, you could use a Bluetooth adapter which helps with the connection.
To further understand how wireless earbuds works, we need to know the component part duly and how they are connected to each other and not undermining the fact that they are extremely small.
Components of an earbud
Usually, an earbud is made up of an outer earbud shell, magnet, diaphragm, coil. This component, when compiled together, causes a vibration which sends sound waves to the ear canal of the listener.
- The outer exterior shell protects the component of the speaker parts of the earbud and functions in amplifying sounds. At the front of the wireless earbud, you will observe some holes that aid the transfer of audio sounds from the earbud to the ear canal. The front earbud shell may sometimes contain a foam or rubber covering for added comfort and helps in protecting the ear from damages coming as a result of the wave disturbances.
- The magnet helps to create vibrations that convert the waves from the electrical signal into real sounds
- The diaphragm: The diaphragm is made from a thin flexible plastic material and can be found under the front of the earbud housing or shell. It is attached to a metal coil located behind it. The coil is placed within the magnet, and as electrical signals pass through the coil, a magnetic field is created which reacts with that of the magnet to create vibrations. The diaphragm amplifies the vibrations to create sound.
The wireless earbud is quite small and functions without a wire connection. Also inside the earbud, there’s a battery which is being charged for it to power the unit for connection with another device. On pairing the wireless earbud (Bluetooth) to a digital wireless device, waves in the form of small frequency radio signals are transferred from the output device. The earbud receives the radio waves and creates electrical signals with the aid of its battery which provides the electrical charges.
The charges create a magnetic effect that magnetically move back and forth stretching the thin diaphragm as it vibrates within the earbuds. This creates some air like movements that make the magnified sound waves filter out from the earbuds. The most important component, the diaphragm determines how the sound frequency will be in terms of its pitch tone and bass. In that the faster the diaphragm vibrates, the higher the pitch the eardrum will detect and vice versa.
I hope this article has been able to give you an insight as to how a wireless earbud works? If you don’t have a earbud until now, let’s check out best earbuds under 50 from us.