Head mounted noise cancelling speakers for consumer speakers

1、 Noise reduction principle: synergy of active noise reduction and passive noise reduction

The core technology of head mounted noise cancelling speakers is noise reduction function, which is mainly implemented in two ways: active noise cancellation (ANC) and passive noise cancellation. Usually, the two work together to achieve good noise reduction effect.

(1) Active noise reduction: intelligent noise suppression

The principle of active noise reduction technology is based on the interference phenomenon of sound waves. When external noise enters, the built-in microphone of the headphones will capture these noise signals in real time. Subsequently, the noise reduction chip of the headphones will quickly analyze and process these signals, generating inverted sound waves with opposite phase and equal amplitude to the external noise. After these two sound waves meet in the air, they will interfere and cancel each other out, thereby reducing or eliminating the impact of external noise on the user's hearing.

For example, when the aircraft engine emits a continuous low-frequency roar, the active noise reduction system can accurately generate corresponding inverse sound waves, effectively canceling out this noise and allowing passengers to enjoy music or rest in a relatively quiet environment. Active noise reduction technology is particularly adept at handling low-frequency noise, and can achieve excellent noise reduction effects for sustained noise with stable frequencies such as traffic noise and air conditioning operation sound.

(2) Passive noise reduction: the protection of physical barriers

Passive noise reduction mainly relies on the physical structure design of the headphones to achieve. Headphones typically use thick, soft, and soundproofing earmuffs that tightly fit around the ear, forming a physical barrier that prevents external noise from directly entering the ear. The material of earmuffs is generally selected from soundproof cotton, leather, etc. These materials can absorb and reflect some noise, further enhancing the sound insulation effect. Passive noise reduction plays an important role in blocking mid to high frequency noise, such as speech and keyboard keystrokes that people come into contact with in their daily lives. Passive noise reduction can significantly weaken mid to high frequency noise.

By combining active and passive noise reduction, the head mounted noise cancelling speaker can reduce noise across all frequency bands, creating a relatively quiet personal auditory space for users.

2、 Technical features: Exquisite integration of driving unit and acoustic design

(1) High quality driver unit lays the foundation for sound quality

The driving unit is one of the core components of the head mounted noise cancelling speaker, and its performance directly affects the sound quality performance. At present, the head mounted noise cancelling speakers on the market mostly use large-sized dynamic coil drive units, with common sizes including 40mm, 45mm, and even larger. A large-sized driving unit can generate stronger sound energy, particularly outstanding in low-frequency performance, making the drum beats in music more impactful and the bass richer and deeper.

For example, some noise cancelling headphones use a driving unit with a bio diaphragm or graphene diaphragm. Biological diaphragms have good flexibility and damping characteristics, which can maintain high fidelity when reproducing sound, making music details more rich; Graphene diaphragm, due to its lightweight and high-strength characteristics, can achieve fast vibration response, perform well in the high frequency range, produce clearer and more transparent sound, and have better extensibility for high frequencies.

(2) Acoustic design optimizes sound propagation path

In addition to the driving unit, careful acoustic design is also the key to improving sound quality. The acoustic structure inside the headphones has been precisely calculated and optimized to ensure that the sound remains clear and balanced during propagation, reducing distortion and distortion. For example, the cavity design of headphones can affect the resonance and reflection of sound. Reasonable cavity size and shape can create a wider and more natural sound field, making users feel as if they are listening to music.

Some of the head mounted noise cancelling speakers also use coaxial sound technology, combining different sized driving units together to enable high-frequency, mid frequency, and low-frequency sounds to be emitted simultaneously on the same axis, avoiding phase differences during sound propagation and further enhancing the clarity and depth of the sound.

3、 Application scenario: Intimate companionship in multiple fields

(1) Daily travel: a peaceful harbor on the commuting road

In daily commuting, whether taking the subway, bus, or train, the noise from the outside world is always constant. Wearing noise cancelling speakers on the head has become a powerful tool for people to enjoy tranquility. On the subway, by activating the noise reduction function, it is possible to effectively isolate the track friction sound and crowd noise during subway travel, allowing passengers to concentrate on listening to music, podcasts, or audiobooks, turning dull commuting time into a pleasant personal time.

(2) Office and Learning: Focused Assistance Tool

For office workers and students, a quiet environment is crucial for improving work and study efficiency. In open offices or libraries, the surrounding noise can easily distract attention. Wearing noise cancelling speakers on the head can help users block the sound of colleagues talking, keyboard typing, and other people walking around, allowing them to fully immerse themselves in work or study, improve concentration, and enhance work and study effectiveness.

(3) Travel leisure: the guarantee of a comfortable journey

During long-distance travel, such as taking a plane or ship, the continuous roar of engines and the conversations of surrounding passengers can make people feel tired and irritable. Wearing noise cancelling speakers can significantly reduce these noise interferences, providing travelers with a relatively quiet resting environment and helping to alleviate fatigue during travel. When resting or enjoying music in noisy public places at travel destinations, wearing a noise cancelling horn can also play an important role, allowing people to find their own peaceful corner anywhere.

4、 Market Status and Development Trends

(1) The market competition is fierce, and the products are diverse and abundant

At present, the market for head mounted noise cancelling speakers is showing a fiercely competitive trend, with numerous brands launching unique products to meet the needs of different consumers. From brands such as Sony Bose， Emerging domestic brands such as Walkman and FIIL have their own strengths in noise reduction performance, sound quality, wearing comfort, and price. Consumers can choose the appropriate head mounted noise cancelling speaker based on their budget and emphasis on product features.

(2) Continuous technological innovation and expanding functionality

With the continuous advancement of technology, the field of head mounted noise cancelling speakers is also constantly innovating. On the one hand, noise reduction technology will continue to upgrade, and in the future, it is expected to achieve higher noise reduction depth and more accurate noise recognition and cancellation, making the noise reduction effect even better. On the other hand, improving sound quality remains an important development direction. By adopting more advanced audio encoding technology, optimizing driver units, and acoustic design, users can enjoy high-quality music that is closer to the original sound.

In addition, the integration of intelligent functions is also one of the development trends of head mounted noise cancelling speakers. For example, by connecting with smart devices such as mobile phones, voice assistant control and personalized noise reduction settings can be achieved to enhance the user experience. Some products have started to support spatial audio technology, combined with head tracking function, to bring users a more immersive audio experience, as if sound is surrounding them. This technology has great potential for application in scenarios such as watching movies and playing games.

Head mounted noise cancelling speakers have become a highly anticipated product type in the modern audio equipment market due to their excellent noise cancelling performance, excellent sound quality, and wide range of application scenarios. With the continuous development and innovation of technology, it will bring people a more superior auditory experience in the future and play an increasingly important role in people's lives. Whether pursuing a peaceful work and study environment or enjoying a high-quality music journey, wearing noise cancelling speakers on the head will be an ideal choice for people.