Active Noise Control vs Passive Noise Cancellation: Understanding the Difference

In the quest for tranquility amidst a noisy world, noise-canceling technologies offer solace. However, distinguishing between active noise control (ANC) and passive noise cancellation (PNC) is crucial for informed decision-making.

Mechanism of Operation

Technology	Mechanism
Active Noise Control (ANC)	Analyzes and cancels external noise using microphones and anti-noise signals
Passive Noise Cancellation (PNC)	Blocks external noise through physical barriers and sound-absorbing materials

Effectiveness

ANC provides more comprehensive noise cancellation than PNC, effectively reducing a broader range of frequencies, including low-frequency sounds like engine noise. PNC, on the other hand, excels in blocking high-frequency noises like conversation and traffic noise.

Comfort and Battery Life

ANC devices typically require batteries to generate anti-noise signals, potentially affecting battery life. PNC, being purely physical, does not require batteries and is generally more comfortable to wear for extended periods.

Applications

Application	ANC	PNC
Headphones and Earbuds	Excellent noise cancellation in noisy environments	Moderate noise reduction
Home and Office	Effective in reducing external noise, creating a more tranquil atmosphere	Limited noise reduction capability

Cost

ANC technologies tend to be more expensive than PNC counterparts due to the added complexity and electronics involved. PNC solutions typically offer cost-effective noise reduction.

Table Summary: Key Differences

Feature	ANC	PNC
Mechanism	Active signal processing	Physical barriers
Effectiveness	Wide frequency range	High frequency noise
Comfort and Battery Life	Requires batteries, may be less comfortable	Battery-free, generally comfortable
Applications	Headphones, earbuds, home/office	Headphones, earplugs, soundproofing materials
Cost	More expensive	Less expensive

Frequently Asked Questions (FAQs)

• Which technology is better?

The choice between ANC and PNC depends on individual preferences and noise reduction needs. ANC excels in noisy environments, while PNC offers a more comfortable experience with a moderate level of noise reduction.

• What are the limitations of ANC?

ANC may not be effective against sudden noises like sirens or barking dogs. It can also introduce a slight hissing sound in certain devices.

• Can PNC be combined with ANC?

Yes, some devices utilize a hybrid approach, combining ANC and PNC for optimal noise reduction.

• Which technology is more suitable for travelers?

ANC headphones or earbuds are ideal for travelers as they provide comprehensive noise cancellation in noisy environments like airplanes or airports.

• Are ANC devices safe for hearing?

Yes, modern ANC devices are designed with safety features to prevent excessive noise exposure and potential hearing damage.

Conclusion

Understanding the differences between active noise control (ANC) and passive noise cancellation (PNC) empowers consumers to make informed decisions based on their specific noise reduction requirements and preferences. Whether seeking tranquility in noisy environments or a comfortable listening experience, these technologies offer effective solutions for noise reduction and enhanced listening enjoyment.

Bose QuietComfort 15 (Non-Wireless) Headphones

The Bose QuietComfort 15 headphones are wired over-ear headphones designed for exceptional noise cancellation.

Features:

• Advanced noise-canceling technology blocks out unwanted noise for a more immersive listening experience
• Plush earcups and headband provide a comfortable fit for extended listening
• TriPort technology enhances bass response without sacrificing clarity
• Active EQ adjusts frequency response for optimal sound quality at different volume levels
• Includes a carrying case and two AA batteries (for up to 35 hours of battery life)

Bose QuietComfort 35 II Alternatives

• Sony WH-1000XM4: Boasts exceptional noise cancellation, high-quality audio with LDAC and DSEE Extreme, and a comfortable fit.
• JBL Live 650BTNC: Offers a balanced and engaging sound profile, active noise cancellation, and long battery life at an affordable price.
• Sennheiser Momentum 3 Wireless: Features natural and detailed sound reproduction, advanced noise cancellation, and a sleek design with premium materials.
• Audio-Technica ATH-M50xBT2: Known for its accurate and balanced sound, Bluetooth connectivity, and foldable design for portability.
• Bose Noise Cancelling Headphones 700: Provides excellent noise cancellation, a customizable EQ, and a stylish design, but lacks the classic comfort of the QuietComfort series.

Bose QuietComfort Earbuds Gen 2 vs. Apple AirPods Pro

Noise Cancellation: Bose excels with industry-leading noise cancellation, while AirPods Pro offer decent noise suppression.

Sound Quality: Both earbuds deliver rich and balanced audio, with Bose providing a more natural sound and AirPods Pro emphasizing bass.

Transparency Mode: AirPods Pro has a superior transparency mode that allows for more natural environmental sound, while Bose’s "Aware Mode" slightly muffles external sounds.

Fit and Comfort: AirPods Pro’s customizable ear tips ensure a secure and comfortable fit for most users, whereas Bose’s wingtips may not fit all ear shapes as well.

Battery Life: AirPods Pro has a longer battery life (4.5 hours) than Bose (6 hours with noise cancellation off). However, the Bose earbuds offer a longer total playtime with the charging case (21 hours vs. 17 hours).

Features: AirPods Pro integrates seamlessly with Apple devices, while Bose offers voice assistant support and customizable controls. Both have water resistance and wireless charging.

Price: Bose QuietComfort Earbuds Gen 2 is slightly more expensive than Apple AirPods Pro.

Bose QuietComfort Earbuds Series II Noise Cancellation

Bose QuietComfort Earbuds Series II offer exceptional noise cancellation with 11 levels of adjustment, allowing users to customize their listening experience. Advanced noise-blocking technology eliminates unwanted sounds, providing immersive audio. The earbuds feature a comfortable and secure fit with customizable eartips and wingtips, ensuring all-day comfort. They also boast extended battery life, with up to six hours with noise cancellation on or eight hours without, and a quick-charging feature for additional power in a pinch. Additionally, these earbuds are water and sweat resistant for durability and have a transparent HearThrough mode that allows users to stay aware of their surroundings while listening to music.

Bose QuietComfort Earbuds Sport

The Bose QuietComfort Earbuds Sport offer a combination of superior noise cancellation and a sporty design tailored for active lifestyles:

• Advanced Noise Cancellation: Bose’s renowned noise cancellation technology effectively blocks out distractions, allowing users to fully immerse themselves in their music or podcasts.
• StayHear Max Tips: The ergonomically designed StayHear Max tips provide a secure and comfortable fit, ideal for intense workouts or outdoor activities.
• Water and Sweat Resistance: These earbuds are IPX4-rated, making them resistant to water and sweat, ensuring they can withstand even the toughest conditions.
• Long Battery Life: With up to 6 hours of battery life, and an additional 12 hours with the charging case, users can enjoy extended listening sessions without interruptions.
• Simple Controls: The touch controls allow for quick and easy access to features, such as volume adjustment, track skipping, and activating noise cancellation.

Bose QuietComfort Earbuds II True Wireless

The Bose QuietComfort Earbuds II offer exceptional noise cancellation and high-quality audio in a compact and comfortable design.

Key Features:

• Unparalleled Noise Cancellation: Bose’s advanced noise cancellation blocks out unwanted noise, providing a truly immersive listening experience.
• Customizable EQ: Adjust the sound profile to your preference using the Bose Music app.
• Natural Transparency: Stay aware of your surroundings without removing the earbuds.
• Exceptional Sound: High-quality drivers deliver clear and balanced audio across the entire frequency range.
• Long Battery Life: Up to 6 hours of playtime with ANC enabled, extending to 24 hours with the charging case.
• Comfortable Fit: Soft, interchangeable eartips provide a secure and comfortable fit for all ear shapes.
• Water and Dust Resistance: IPX4 rating protects against water and dust for worry-free use in various environments.

Bose QuietComfort Headphones for Computers

Bose QuietComfort headphones offer exceptional sound quality and noise cancellation for use with computers.

• Noise Cancellation: Active noise cancellation effectively blocks out distractions, allowing for immersive listening.
• Comfort: Soft earpads and an adjustable headband ensure a comfortable fit for extended use.
• Audio Performance: Crisp, clear and balanced sound reproduction delivers an exceptional listening experience for music, movies, and games.
• Connectivity: Seamlessly connects to computers via Bluetooth or USB-C cable.
• Additional Features: Built-in microphone for clear call quality, volume controls, and a compact carrying case for easy transportation.

Bose QuietComfort Noise Cancelling Headphones

Bose’s QuietComfort headphones are renowned for their exceptional noise cancellation, comfort, and sound quality.

Noise Cancellation:
These headphones feature Bose’s industry-leading noise cancellation technology, effectively blocking out background noise and creating a tranquil listening environment. They allow you to immerse yourself in your music or podcasts without distractions.

Comfort:
The QuietComfort headphones are designed with comfort in mind. Their plush ear cups and adjustable headband provide a secure and snug fit for hours of comfortable listening. The lightweight design ensures minimal fatigue during extended use.

Sound Quality:
Bose engineers have meticulously tuned the drivers to deliver rich, balanced audio. The headphones reproduce music across the entire frequency range, ensuring clarity and depth in both vocals and instruments.

Additional Features:

• Bluetooth connectivity for wireless freedom
• Built-in microphone for clear voice calls
• Battery life of up to 20 hours with noise cancellation on
• Customizable noise cancellation levels
• Compact carrying case for easy storage

Bose QuietComfort Noise Cancelling Headphones DLS

The Bose QuietComfort Noise Cancelling Headphones DLS offer exceptional audio quality and industry-leading noise cancellation. Featuring cutting-edge TriPort technology, these headphones produce deep, rich bass and crystal-clear highs. Their advanced noise cancellation system effectively blocks out unwanted sounds, creating an immersive and distraction-free listening experience. The headphones are lightweight and comfortable, with plush earcups and a headband that adjusts for a custom fit. They also feature convenient Bluetooth connectivity and a long-lasting battery life for extended listening sessions without interruption. With their superior sound quality, unparalleled noise cancellation, and comfortable design, the Bose QuietComfort Noise Cancelling Headphones DLS are the perfect choice for discerning audio enthusiasts and anyone who values a truly exceptional audio experience.

Bose QuietComfort Replacement Eartips

Bose QuietComfort replacement eartips are designed to enhance the comfort and performance of your Bose QuietComfort earbuds.

• Improved Comfort: Made from soft silicone, the eartips provide a secure and comfortable fit, reducing ear fatigue during extended listening sessions.
• Enhanced Sound Isolation: The eartips create a better seal in the ear canal, effectively blocking out external noise and enhancing the immersive audio experience.
• Precise Fit: Available in multiple sizes (small, medium, large), the eartips allow you to find the perfect fit for your ears, ensuring optimal comfort and sound quality.
• Durable Construction: The eartips are made from durable materials, ensuring longevity and preventing the need for frequent replacements.
• Easy Installation: Replacing the eartips is a straightforward process, allowing you to quickly and easily customize your earbuds for a personalized fit and sound experience.

Bose QuietComfort Earbuds II

The Bose QuietComfort Earbuds II offer exceptional noise cancellation, premium audio quality, and a comfortable fit.

Features:

• Unrivaled noise cancellation technology using redesigned Quiet Mode and Aware Mode
• Enhanced Bose TrueResponse driver for deep, balanced audio
• CustomStay eartips and Fit Kit for a secure fit
• Up to 6 hours of battery life with ANC enabled (up to 24 hours with charging case)
• Bluetooth 5.3 connectivity
• IPX4 water and dust resistance
• Voice assistant compatibility (Google Assistant and Alexa)
• Intuitive touch controls for music, calls, and ANC settings

Bose QuietComfort Wireless Headphones with Microphone

The Bose QuietComfort Wireless Headphones offer exceptional sound quality with active noise cancellation for an immersive listening experience.

Key Features:

• Active Noise Cancellation: Blocks out unwanted noise, allowing you to fully enjoy your music or podcasts.
• Superior Audio Performance: Delivers clear, balanced sound with deep, rich bass.
• Bluetooth 5.1: Provides a stable and reliable wireless connection.
• Built-in Microphone: Enables hands-free calling and voice assistants.
• Comfortable Fit: Plush ear cushions and adjustable headband ensure a comfortable fit for extended listening sessions.
• Long Battery Life: Up to 20 hours of use on a single charge, with fast charging capability.
• Compact Design: Easily foldable for convenient storage when not in use.

Bose QuietComfort Wireless Headphones with Noise Cancelling

Bose’s QuietComfort Wireless headphones offer exceptional noise cancellation and clear audio performance in a comfortable and wireless design.

• Uncompromising Noise Cancellation: Bose’s proprietary noise cancellation technology effectively blocks out external noise, creating a tranquil listening environment in any setting.
• Crystal-Clear Audio: The headphones deliver rich, detailed audio with a wide frequency range, ensuring immersive and engaging sound reproduction.
• Comfortable Design: Featuring plush ear cups and an adjustable headband, the headphones provide a snug and secure fit for hours of comfortable listening.
• Wireless Convenience: With Bluetooth 5.0 connectivity, the headphones seamlessly connect to smartphones and other devices, offering up to 20 hours of battery life on a single charge.
• Voice Assistant Integration: Compatible with Amazon Alexa and Google Assistant, the headphones allow for hands-free voice control for music, calls, and other tasks.

Bose QuietComfort Wireless Headphones with Noise Cancelling Over-Ear

These headphones offer exceptional noise cancellation, delivering a tranquil listening experience even in noisy environments. They feature high-quality audio reproduction with deep bass and clear highs.

Key Features:

• Noise Cancelling: Advanced noise cancelling technology effectively reduces unwanted sounds.
• Bluetooth Connectivity: Bluetooth 5.1 provides stable and reliable wireless connectivity.
• Custom Comfort: Plush memory foam ear pads and an adjustable headband ensure a comfortable fit.
• Long Battery Life: Up to 24 hours of battery life on a single charge.
• Voice Assistant Compatibility: Siri and Google Assistant support for hands-free control.
• Robust Construction: Durable design with sweat and water resistance.
• Noise Masking: White noise or pink noise can be played to further enhance tranquility.

Bose QuietComfort® Wireless Headphones with Noise Cancelling Surface

Bose QuietComfort® Wireless Headphones offer exceptional noise cancellation, delivering an immersive listening experience. Their advanced noise-rejecting microphones block unwanted sounds, while the plush earcups provide a comfortable and secure fit.

These headphones feature a sleek and ergonomic design, with a wireless Bluetooth connection for seamless pairing with your devices. The Active EQ technology automatically adjusts the audio to maintain optimal sound quality at any volume level.

With up to 24 hours of battery life, the QuietComfort® Wireless Headphones provide extended listening without interruptions. They are also compatible with voice assistants for hands-free control. The headphones come in two elegant colors, black and silver, and include a premium carrying case for protection during storage and transport.

Bose QuietComfort Wireless Headphones with Noise Cancellation

The Bose QuietComfort Wireless Headphones offer exceptional noise cancellation, allowing you to immerse yourself in your music or podcasts without distractions. They feature advanced Bluetooth technology for seamless wireless connectivity and a comfortable, secure fit.

With up to 24 hours of battery life, you can enjoy extended listening sessions without worrying about running out of power. They also come with a carrying case and audio cable for use when the battery is depleted.

These headphones are known for their superior audio quality, delivering crystal-clear highs, rich mids, and deep, impactful bass. The noise cancellation technology reduces unwanted sounds, such as ambient noise and conversations, creating a truly immersive and intimate listening experience.

Bose QuietComfort Wireless Headphones with Noise Cancellation 30

The Bose QuietComfort Wireless Headphones with Noise Cancellation 30 feature:

• Exceptional noise cancellation: Eliminates distractions for optimal listening
• Premium sound quality: Delivers clear, detailed audio with deep bass
• Advanced Bluetooth technology: Ensures seamless wireless connectivity
• Comfortable fit: Memory foam ear cushions provide all-day comfort
• Long battery life: Up to 24 hours of playtime on a single charge
• Durable construction: Rugged materials and IPX4 water resistance withstand daily use
• Voice assistant compatibility: Works with Siri and Google Assistant
• Optional wired connection: Included cable for use with devices without Bluetooth
• Mobile app: Customizes settings, adjusts noise cancellation, and provides firmware updates

Bose QuietComfort Wireless Headphones with Noise Cancellation 40

These headphones offer exceptional noise cancellation, with a maximum of 40 decibels of noise reduction. With their comfortable design and long battery life (20 hours with noise cancellation), they’re ideal for use in noisy environments. They feature Bluetooth connectivity for wireless listening and a companion app for customizing performance. Additionally, their transparency mode allows for situational awareness when necessary and they are water and dust resistant for outdoor use.

Bose QuietComfort 45 Headphones with Noise Cancellation

Bose QuietComfort 45 headphones offer superior noise cancellation and comfort. They feature two noise-canceling modes (Quiet and Aware) to adjust the level of noise-canceling as needed. The headphones have a comfortable design with plush ear cups and an adjustable headband, ensuring a secure and comfortable fit.

Bose’s TriPort technology delivers deep, impactful bass without compromising the clarity of mid and high-range frequencies. The headphones also feature Bluetooth 5.1 connectivity for stable and reliable wireless connection with your devices.

With up to 24 hours of battery life, the QuietComfort 45 headphones provide extended listening time. They also come with a carrying case for protection during travel. Additionally, they are compatible with the Bose Connect app, which allows you to customize settings and access software updates.

Bose QuietComfort Wireless Headphones with Noise Cancellation 60

Bose QuietComfort Wireless Headphones offer exceptional noise cancellation and premium audio quality in a sleek and comfortable design.

Features:

• Noise Cancellation 60: Blocks up to 60% more noise than previous models, creating a serene listening environment.
• Bluetooth 5.0: Provides a stable and reliable connection for seamless wireless playback.
• TriPort Technology: Enhances bass performance for deep, immersive sound.
• Active EQ: Automatically adjusts the sound profile to deliver balanced audio across all volume levels.
• Customizable Buttons: Allows for convenient control of noise cancellation, volume, and other functions.
• ComfortMax Headband: Distributes weight evenly for extended listening sessions.
• Foldable Design: Folds flat for easy storage and portability.

Benefits:

• Eliminates distractions for uninterrupted focus and relaxation
• Delivers high-fidelity audio for an immersive listening experience
• Offers extended comfort for all-day wear
• Provides intuitive and effortless control for a seamless user experience
• Enhances the convenience of wireless listening on the go

Bose QuietComfort 45 Wireless Headphones with Noise Cancellation

The Bose QuietComfort 45 Wireless Headphones offer exceptional noise cancellation, delivering an immersive and undisturbed audio experience.

Key Features:

• Industry-leading noise cancellation: Bose’s TriMode technology effectively suppresses unwanted noise, creating a serene listening environment.
• Clear and balanced sound: Custom transducers and active equalization ensure crystal-clear highs, rich mid-tones, and deep, impactful bass.
• Extended battery life: With up to 24 hours of battery life, you can enjoy long listening sessions without interruptions.
• Comfort and durability: The lightweight construction and plush earcups provide all-day comfort, while the durable materials ensure longevity.
• Multipoint Bluetooth connectivity: Connect to two Bluetooth devices simultaneously for seamless switching between audio sources.
• Dedicated ANC button: Easily toggle between Quiet, Aware, and Off modes to customize your noise cancellation settings.
• Aware mode: Allows you to hear your surroundings while still enjoying music, perfect for situations where you need to be aware of your environment.
• Proprietary Bose Music App: Personalize your audio experience, manage your headphones, and access updates.