Chore Process of Wireless Earbuds – True Wireless Stereo
- USI

- Jul 8, 2021
- 2 min read
Technology is a mysterious subject, because prominently we knew how to use it, but we don’t know the inner working process of gadgets. Now-a-days, people showing the keen interest towards the wireless technologies and also hastily moving to it. It’s really hard to knew about the chore process in gadgets, especially in wireless devices. As we know, the wired headphones or speakers, it makes sense to us that the electricity flows from the connected device, through the plug, up the tangle of wires, and to the headphones. But it’s difficult to define in wireless headphones.
9 Distinctive Technologies
Most of the times we’ve queries, but we don’t give importance to the process of true wireless stereo, how it’ll transmit the music or audio from the connected device, through the air, and into the wireless gadgets?
Wireless headphones are incredibly complex, because there are 9 distinct technology is hidden in it. These technologies are
· Speaker
· Audio codecs
· Bluetooth
· System on a chip (SoC)
· The Printed Circuit Board (PCB)
· Accelerometers
· Li-Ion Battery
· MEMS microphone
· Noise Cancellation
Working Process of Earbuds
Although raise of enormous distinctive type of wireless headphones and earbuds, all of the companies using the same rudimentary principles and technologies.
While turning on the paired earbuds near the smartphone, a Bluetooth communication channel is established for sending the data to back and forth.
As soon as started playing the audio files, the smartphone grabs the audio data from its flash storage chip. That decomposes the audio, and storing the phone’s working memory. This kind of audio files are denoted digitally as a long set of numerals.
According to the Bluetooth specifications, the smartphone compresses and splits the data into packets, while sending it to the earbuds. Subsequently, the smartphone modifies these packets into electromagnetic waves or photons.
Then, sends the data to the earbuds, over the Bluetooth connection. The earbuds receive the data and disassemble and decompress the packets back into the long sets of values. And these values are sent to the audio codec.
Delineation of Codec and Audio Codec
· Codec stands for coding and decoding, it denotes either the piece of hardware or software, that transforms the data from one format into another format, thereby compressing or decompressing the data.
· Audio codec is a program, that switch the digital values into an Analog electrical waveform.
This waveform is directed to the voice coil, which is attached to the back of the diaphragm. According to the given waveform, the voice coil will move back and forth.
The moving diaphragm which in turn generates pressure waves in the air. These kind of pressure waves are sensed by the human ear and interrupted as sound by the brain.
This is the way we hear the music or sound from the true wireless stereo like earbuds, headphones, etc




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