The global True Wireless Stereo Headset market is expected to grow 33% (year-over-year) in 2021, reaching 310 million units

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True Wireless Earphones | Earbuds | headphones and earphones

The global TWS (True Wireless Stereo Headset) market is expected to grow 33 per cent (year-over-year) in 2021, reaching 310 million units, according to a new report.

Apple will remain a leader selling around 84 million units but still lose share by 4 per cent.

Apple was expected to defend its top position despite its market share decline from 31 percent to 27 percent. China's Xiaomi was projected to see its presence remain the same as last year at 9 percent.

At third spot, Samsung's market share in 2021 was estimated to stay unchanged at 7 percent, according to market tracker Counterpoint Research.

Major top brands such as Apple are likely to launch next-generation products, which will boost the TWS market further.

"The most anticipated is a new release from Apple, its first in two years. We expect it to be one of the biggest drivers of TWS market growth from Q4 2021 to the next year. Apple will maintain strong market leadership based on its loyal customer base, although its share will inevitably fall with the intensifying competition," said Senior Research Analyst Liz Lee in a statement on Wednesday.

As Covid-19 will unlikely ease in a short time despite the spread of vaccination, the pent-up demand for high-end TWS is not expected to explode until late Q3 2021.

"At that point, the market focus will gradually shift to the mid- to high-price segment as vaccinations help consumer sentiment improve. Then, most premium brands will add advanced features and various functions to their new models and create high value addition in the long term," Lee noted.

Meanwhile, low- to mid-priced brands will further enhance price competitiveness to compete for market share.

In terms of brand performance, there was no big surprise in 2020. Apple continued to dominate but its share declined steadily through the year and fell below one-third of the TWS market.

The market slightly exceeded the initial annual estimate for 2020 to reach 233 million units, mainly driven by the strong performance of low- and mid-price segments, the report mentioned.

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here are so many headphone noise reduction functions, what is ANC, ENC, CVC, DSP noise reduction

The noise reduction function is very important to the function of the earphone. One is to reduce noise and avoid excessively amplifying the volume, thereby reducing damage to the ears. The second is to filter noise to improve sound quality and call quality.

Noise reduction can be divided into passive noise reduction and active noise reduction.

Passive noise reduction is physical noise reduction. Passive noise reduction refers to the use of physical characteristics to isolate external noise from the ear. The head beam of the earphone is designed to be tighter. The earmuff cavity is acoustically optimized. Acoustic materials ... etc. to achieve physical sound insulation of the headphones. Passive noise reduction is very effective for the isolation of high-frequency sounds (such as human voices), and generally reduces the noise by about 15-20dB.

Passive noise reduction

Active noise reduction is ANC, ENC, CVC, DSP and other noise reduction technologies that merchants will focus on when promoting the noise reduction function of headphones. What are the principles and functions of these four types of noise reduction?

ANC noise reduction

The working principle of ANC (active noise control) is that the microphone collects external environmental noise, and then the system transforms it into an inverse sound wave and adds it to the speaker. The final sound heard by the human ear is: environmental noise + anti The relative environmental noise, the superposition of two kinds of noise to achieve sensory noise reduction, the beneficiary is yourself.

Active noise reduction is divided into feed-forward active noise reduction and feedback active noise reduction according to the position of the pickup microphone.

(Schematic diagram of ANC noise reduction principle)

ENC noise reduction

ENC (Environmental Noise Cancellation, environmental noise reduction technology) can effectively suppress 90% of the reverse environmental noise, thereby reducing the environmental noise up to more than 35dB, allowing gamers to communicate more freely. Through the dual microphone array, the caller's speaking position is accurately calculated, while protecting the target voice in the main direction, and removing all kinds of interference noise in the environment.

ENC noise reduction principle

DSP noise reduction

DSP is short for English (digital signal processing). Mainly for high and low frequency noise. The working principle is that the microphone collects the external environmental noise, and then the system replicates a reverse sound wave equal to the external environmental noise to cancel the noise, thereby achieving better noise reduction effect. The principle of DSP noise reduction is similar to ANC noise reduction. However, the positive and negative noise of DSP noise reduction are directly neutralized and canceled each other within the system.

CVC noise reduction

CVC (Clear Voice Capture) is a noise reduction technology for calling software. Mainly aimed at the echo generated during the call. Through the full-duplex microphone noise reduction software, it provides the echo and environmental noise cancellation functions of the call, which is the most advanced noise reduction technology in the Bluetooth call headset.

The main beneficiary of DSP technology (elimination of external noise) is the headset user himself, while CVC (echo cancellation) mainly benefits the other party of the call.