When shopping for wireless earbuds, you may notice two common features: ANC and ENC. Both technologies help reduce noise, but they serve different purposes. ANC helps reduce the sounds you hear around you, while ENC helps make your voice clearer during phone calls. The names are similar, so it is easy to mix them up.Understanding the difference can help you choose earbuds that fit your daily needs. Whether you listen to music on a train, work in a busy office, or take calls from a coffee shop, knowing how ANC and ENC work can help you get more value from your next pair of wireless earbuds.
What Is ANC in Wireless Earbuds?
ANC stands forActive Noise Cancellation. It is a technology that helps reduce unwanted sounds around you, allowing you to focus more on music, videos, or other audio. It is especially useful in places with steady background noise, such as airplanes, trains, and busy offices.
How ANC Uses Microphones to Detect and Reduce Noise
ANC uses small microphones to pick up sounds from the surrounding environment. The earbuds then create a sound signal designed to counteract some of that unwanted noise. When the original sound and the opposite signal meet, they can reduce each other through a process called destructive interference. This process works best with steady, low-frequency sounds, such as engine rumble or air conditioner noise. It may be less effective against sudden sounds, sharp clicks, or nearby conversations.
Common Types of ANC
There are several types of ANC, each with a different approach to reducing noise.
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Feedforward ANC: Microphones on the outside of the earbuds detect noise before it reaches your ears. The system uses this information to create a counteracting signal.
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Feedback ANC: Microphones closer to the ear canal measure the sound reaching your ears. The earbuds use this information to adjust their noise cancellation.
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Hybrid ANC: This combines feedforward and feedback methods. It uses microphones on both the outside and inside of the earbuds to help manage unwanted sounds.
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Adaptive ANC: This adjusts noise cancellation based on your surroundings or other detected conditions. It can help the earbuds respond to changing environments.
Not every pair of wireless earbuds supports all these types. If you often travel or work in noisy places, it is worth checking which ANC system a model uses.
What Is ENC in Wireless Earbuds?
ENC stands forEnvironmental Noise Cancellation. In wireless earbuds, this term usually refers to technology that helps reduce background noise picked up by the microphones during calls. Its main goal is to help the person on the other end hear your voice more clearly.
How ENC Microphones Help Make Your Voice Clearer During Calls
ENC systems often use more than one microphone to capture your voice and the surrounding sounds. The earbuds process these signals to help separate speech from unwanted background noise.
For example, one microphone may pick up your voice along with nearby traffic, while another captures a different mix of sounds. The earbuds can compare these signals and reduce some of the noise that does not appear to be part of your speech.
This can make calls easier to follow in offices, cafes, and other busy places. However, results depend on microphone placement, software, wind conditions, and the type of background noise. ENC cannot remove every sound, and it does not guarantee perfect call quality.
How AI Noise Reduction Can Further Improve Call Clarity
Some wireless earbuds use AI-based noise reduction to improve voice pickup. These systems use trained algorithms to recognize patterns in speech and background sounds. They then try to preserve the voice while reducing unwanted noise. For instance, an AI system may learn to distinguish spoken words from the steady hum of a fan or the mixed sounds of a busy room.
AI noise reduction is not the same as ANC. ANC mainly reduces noise you hear, while call-focused AI processing aims to improve the audio sent to the other person. Some earbuds combine ENC with AI processing, but the exact features vary by model.
ANC vs. ENC: What Is the Main Difference?
The main difference between ANC and ENC is which sound each technology is designed to improve. ANC focuses on the sound reaching your ears. It helps reduce outside noise so you can enjoy music, videos, or other audio with fewer distractions. ENC focuses on the sound transmitted through the microphones during calls. It helps reduce background noise so other people can hear your voice more clearly.
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Feature |
ANC |
ENC |
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Main purpose |
Reduce noise you hear |
Reduce background noise during calls |
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Primary benefit |
A quieter listening experience |
Clearer voice transmission |
|
Common use |
Music, travel, study, and work |
Phone calls and online meetings |
|
How it works |
Uses noise detection and sound processing to reduce outside noise |
Processes microphone signals to reduce unwanted background sounds |
|
Best suited for |
Noisy listening environments |
Calls in noisy environments |
ANC and ENC Can Be Used Together
You do not always have to choose between ANC and ENC. Many wireless earbuds offer both features because they solve different problems. Imagine working in a shared office. You want to listen to music without hearing every nearby conversation, but you also need to join a video meeting. ANC can help reduce the noise you hear while you listen. When you speak during the meeting, ENC can help reduce background sounds picked up by the microphones. The two technologies can therefore support different parts of the same daily routine. You can use ANC for a more focused listening experience and benefit from ENC when making calls.
How ANC and ENC Perform in Different Environments
On Public Transportation
Trains, buses, and airplanes often produce a steady rumble. This is the type of sound that ANC can reduce effectively. With ANC enabled, you may hear less engine noise and find it easier to enjoy music or a podcast.
ENC becomes more useful when you need to make a call during your journey. It can help reduce some background noise picked up by the microphones, although loud announcements and nearby passengers may still affect call clarity.
In an Office
ANC can reduce some steady background sounds and help you focus on your work. Its ability to reduce nearby speech varies, so it should not be expected to make every conversation disappear.
ENC can help when you join an online meeting or make a phone call. It may reduce the sound of fans, office activity, and other background noise picked up by the microphones. If you work remotely or attend frequent meetings, both features can be useful.
In a Coffee Shop
Coffee shops are challenging because their sound environment changes constantly. You may hear conversations, cups clinking, music playing, and coffee machines running. ANC can reduce some of the steady background noise, making music or spoken audio easier to hear. However, sudden sounds and nearby voices may remain noticeable.
ENC can help reduce some cafe noise during calls, but wind and overlapping conversations can still make your voice harder to understand. For the best results, speak clearly, keep the earbuds fitted properly, and move away from the noisiest part of the room when possible.
TOZO NC9 Pro: Combining ANC and Clear Call Performance
TheTOZO NC9 Pro combines noise control, audio performance, and call-focused features in one pair of wireless earbuds. It is worth considering if you want earbuds for music, commuting, work, and everyday communication.
Its hybrid ANC and adaptive ANC provide noise reduction of up to 45 dB under specified conditions. The hybrid system uses multiple microphones to help detect unwanted sounds, while adaptive noise control can adjust to changing listening environments. These features can help reduce distractions when you are listening to music or working in a busy space.
For phone calls, the NC9 Pro features six microphones and AI ENC (Environmental Noise Cancellation) to help reduce background noise picked up during conversations. This can be useful when taking calls from an office, cafe, or other environment where unwanted sounds may interfere with your voice.
The earbuds also feature 10 mm SDLC dynamic drivers enhanced byOrigX Pro technology, supporting detailed audio for music, videos, and spoken content. A touchscreen charging case provides access to supported controls, while multipoint connectivity makes it easier to switch between compatible devices. Voice assistant support and AI features, including AI Meeting Records, AI Real-Time Translation, and AI Chat, add further convenience.
Conclusion
ANC and ENC may sound similar, but they serve different purposes. ANC helps reduce outside noise you hear, while ENC helps make your voice clearer during calls. If you listen to music and take calls throughout the day, wireless earbuds with both features can offer a more versatile experience.
FAQ
Is ANC Better Than ENC?
Neither is better in every situation. ANC is more useful when you want to reduce outside noise while listening to audio. ENC is more useful when you want others to hear your voice clearly during calls. The right choice depends on your needs.
Do Wireless Earbuds Need Both ANC and ENC?
Not everyone needs both, but having both can be useful. ANC helps with commuting, studying, and listening in noisy places. ENC helps improve calls in busy environments. If you use your earbuds for both activities, look for a model that supports both technologies.
Does ENC Work When Listening to Music?
ENC is mainly designed to reduce background noise picked up by microphones during calls. It does not serve the same purpose as ANC and usually does not directly make music sound quieter or clearer to the listener.
Can ANC Reduce Background Noise During Phone Calls?
ANC mainly reduces noise reaching your own ears. Some earbuds use separate microphone processing to improve the voice sent during calls. Check whether the model includes ENC or another call noise reduction feature if call clarity is important to you.
Is ENC the Same as AI Noise Cancellation?
No. ENC describes environmental noise reduction, especially during calls. AI noise cancellation refers to the use of AI-based processing to identify and reduce unwanted sounds. Some earbuds combine these approaches, but the terms do not always describe the same technology.
Does More ANC Mean Better Sound Quality?
Not necessarily. ANC can make music easier to hear by reducing outside noise, but sound quality also depends on the drivers, audio tuning, Bluetooth codec support, and fit. A high noise reduction rating alone does not guarantee better audio.
