Pick up online full wireless earphones.Introducing the actual feeling of use
Speaking of the criteria for choosing TWS earphones, I think of the functions and brands, as well as the functional aspects such as sound quality and noise canceling function (NC), but there is another point of view of "SOC".Look at the complete wireless earphones from the viewpoint of the SoC, pick up 3 online exclusive models to introduce the actual feeling of use.
"TWS earphone SOC" that I can't hear anymore
The so-called central operation processing device (CPU) of PCs and smartphones has evolved to SoC (System-on-A-chip) *, which also contains memory and GPU, but the same change in Bluetooth earphones.There is.
* Note: Depending on the implementation method, there is a chip that should be written as "SIP (System-in-A-chip)", but here is a unified notation with "SOC".
Initially, chips, which received the Bluetooth radio waves and played the role of decryption of the signed signals, converted the digital signal into an analog signal (DAC) and the function to amplifying the analog signal (amplifier).I started to play.If the core function as a Blutooth earphone can be realized in one chip, it is also advantageous for smaller weight.
Another Bluetooth earphone has a "age request" to support "noise cancellation (NC)".The NC generates and outputs the "passive method" that physically blocks the surrounding noise (like earplugs), and the opposite of the noise collected by the microphone (inverted phase).There are two types: "active noise cancellation" (active noise cancellation = anc), which reduces noise by canceling, but the latter is the key to the accuracy of creating the waveform of the opposition phase directly to the NC effect.The higher the operational performance of the SoC, the more effective.
Under such a background, Sony's noise canceling processor "QN1E" appeared.The "QN1" chip equipped with the NC-compatible wireless headphones "WH-1000XM3" is optimized for small aircraft such as TWS earphones.It was done.The sound equipment that does not compromise on the sound quality, such as DAC and amplifier, can be said to be a Sony Sony SOC.
The "H1" chip mounted on the Apple's "AirPods Pro" is also a SOC that is strongly conscious of NC.It has succeeded in improving NC performance by reducing delays due to the high calculation performance of 10 audio core.Power saving performance is also a strength.
Qualcomm, known for the smartphone SOC "Snapdragon", is also focusing on SoC for TWS earphones.One of the "QCC3040" supports NC as options, and has a variety of functions, such as the left and right simultaneous transmission technology "TrueWireless Mirroring" and the variable bit rate codec "AptX Adaptive".It has a reputation for communication stability, and it is a place where the TWS earphones to be adopted can be nodded one after another.
On the other hand, Taiwan and Chinese chip vendors are rapidly catching up.For example, Airoha in Taiwan has quickly adopted the left and right simultaneous transmission technology "McSync", and succeeded in expanding the base of TWS earphones, which is hard to interrupt sound.Vendors such as Realtek and Bestechnic also have NC -compatible chips.
Currently, QN1E is Sony products, H1 is Apple (Beats by Dr).It is only supplied to DRE products), and the Qualcomm's SoC is said to be "not cheap" in terms of earphone maker designers, so it is a high -performance TWS earphone that is affordable and highly functional.A vendor SOC will be adopted.
Then, what about the TWS earphones that adopted a SOC made by Nakadai vendor? This time, I picked up three products online sales only and checked their skills.