What is ENC in earbuds?

ENC stands for Environmental Noise Cancellation. It is a microphone processing feature that filters background noise from the audio your earbuds transmit during calls — so the person on the other end hears your voice more clearly and less of your environment (keyboard, HVAC hum, nearby conversations). ENC is a different system from ANC (Active Noise Cancellation), which reduces what you hear through your earbuds. ENC affects what others hear from you; ANC affects what you hear.

Are call quality and music quality the same thing in earbuds?

No. Music quality depends on the speaker drivers, audio codecs, and tuning of the earbuds. Call quality depends primarily on the microphone hardware, ENC processing, and how well the earbud handles background noise pickup during transmission. An earbud can sound excellent for music but have a mediocre microphone — or the reverse. If calls are your primary use case, specifically look for earbuds with advertised strong call microphone performance, not just audio quality.

What is multipoint connection and why does it matter for calls?

Multipoint connection allows a pair of earbuds to maintain an active Bluetooth connection with two devices at the same time — for example, your laptop and your smartphone. When a call comes in on either device, your earbuds switch to that audio source automatically without requiring you to disconnect from one device and reconnect to another. This is especially useful for remote workers who take video calls on a computer while also receiving phone calls on a mobile device.

Are in-ear earbuds or over-ear headsets better for work calls?

Over-ear headsets with a boom microphone historically provide better call clarity because the microphone is positioned close to the mouth and optimized for voice pickup. In-ear earbuds have improved significantly, and many models with stem designs and dedicated ENC processing perform well in quiet to moderately noisy environments. For very noisy environments or professional call-center use, over-ear headsets with boom microphones remain the more reliable choice.

Can I use wireless earbuds for long work calls without discomfort?

Fit and weight are the main factors for long calls. In-ear earbuds that seal tightly can cause ear canal fatigue over several hours, particularly if they are heavy or if the fit is imperfect. Smaller, lighter earbuds with a comfortable ear tip that does not press hard against the canal tend to be more wearable for extended use. Taking short breaks or alternating which ear is in use can help during very long call sessions.

What causes my voice to sound muffled during calls?

Several things can cause muffled voice quality: a poor microphone seal or microphone placement far from the mouth, overly aggressive ENC processing that also filters out parts of your voice, a weak Bluetooth connection causing compressed or degraded audio, or the earbud microphone being blocked by hair, a collar, or other obstruction. If ENC processing is the cause, reducing or disabling ENC (if the earbud app allows it) can improve voice clarity at the cost of more background noise for the listener.

Earbuds for Calls: What Makes a Good Call Quality Earbud

Written by Will Henschell · Published May 24, 2026

Call quality in earbuds is driven by the microphone system, not the speaker. Understanding what separates clear call performance from mediocre microphone pickup helps you choose earbuds that work as well for work calls and meetings as they do for listening to music.

Call Quality Factors ANC vs. ENC By Scenario FAQ

What Affects Call Quality

Factor	What It Does	Importance for Calls
ENC (Environmental Noise Cancellation)	Isolates your voice from background noise picked up by the microphone so the person on the other end hears less of your environment	High — the most important call-quality feature
Microphone placement	Earbuds with microphone arrays closer to the mouth or on a stem capture voice more cleanly than single embedded mic designs	High — stem designs (like earbud styles with a pendant) generally outperform fully in-ear designs for call clarity
Multipoint connection	Allows the earbuds to stay paired with two devices simultaneously — work laptop and phone — so calls from either device come through without re-pairing	High for remote workers; not needed for single-device users
Wind noise handling	Some earbuds detect wind and switch microphone pickup modes to reduce turbulence noise during outdoor calls	Important for outdoor use; less relevant for indoor office or home calls
Call latency	The delay between speaking and the other person hearing your voice. For most Bluetooth earbuds, call latency is low enough that it is not perceptible in normal conversation	Low concern for voice calls; audio-video sync latency is a separate issue for video calls on screen

ANC and ENC Are Two Different Systems

ANC — Active Noise Cancellation

Reduces the ambient noise you hear through your earbuds. Outward-facing microphones sample ambient sound and generate an inverse wave that cancels noise before it reaches your ears. ANC helps you hear the person on the call more clearly in noisy environments.

ENC — Environmental Noise Cancellation

Reduces the background noise others hear in your voice during calls. Microphone arrays and signal processing isolate your voice and reduce keyboard noise, HVAC hum, and ambient sound from the transmitted audio. ENC helps the person on the other end hear you clearly.

Many premium earbuds include both ANC and ENC as separate systems. Having one does not guarantee the other. Check specifically for call-quality ENC performance if calls are a primary use case.

What to Prioritize by Scenario

Open-plan office

Priority: Strong ENC is essential — keyboard, HVAC, and conversation noise are constant

Choose earbuds that specifically advertise clear call quality and ENC for calls, not just ANC for listening

Working from home

Priority: Multipoint lets you answer phone calls without removing earbuds from your computer audio

Look for two-device multipoint that does not require manual switching

Commuting on calls

Priority: ENC handles train, bus, and traffic noise; ANC helps you hear the other person

Both ANC (for you) and ENC (for them) matter here — they are separate systems

Outdoor calls

Priority: Wind noise handling is the most relevant feature; standard ENC struggles with wind

Look for earbuds that specifically mention wind noise suppression in call scenarios, not just general ENC

Frequently Asked Questions

What is ENC in earbuds?: ENC stands for Environmental Noise Cancellation. It is a microphone processing feature that filters background noise from the audio your earbuds transmit during calls — so the person on the other end hears your voice more clearly and less of your environment (keyboard, HVAC hum, nearby conversations). ENC is a different system from ANC (Active Noise Cancellation), which reduces what you hear through your earbuds. ENC affects what others hear from you; ANC affects what you hear.
Are call quality and music quality the same thing in earbuds?: No. Music quality depends on the speaker drivers, audio codecs, and tuning of the earbuds. Call quality depends primarily on the microphone hardware, ENC processing, and how well the earbud handles background noise pickup during transmission. An earbud can sound excellent for music but have a mediocre microphone — or the reverse. If calls are your primary use case, specifically look for earbuds with advertised strong call microphone performance, not just audio quality.
What is multipoint connection and why does it matter for calls?: Multipoint connection allows a pair of earbuds to maintain an active Bluetooth connection with two devices at the same time — for example, your laptop and your smartphone. When a call comes in on either device, your earbuds switch to that audio source automatically without requiring you to disconnect from one device and reconnect to another. This is especially useful for remote workers who take video calls on a computer while also receiving phone calls on a mobile device.
Are in-ear earbuds or over-ear headsets better for work calls?: Over-ear headsets with a boom microphone historically provide better call clarity because the microphone is positioned close to the mouth and optimized for voice pickup. In-ear earbuds have improved significantly, and many models with stem designs and dedicated ENC processing perform well in quiet to moderately noisy environments. For very noisy environments or professional call-center use, over-ear headsets with boom microphones remain the more reliable choice.
Can I use wireless earbuds for long work calls without discomfort?: Fit and weight are the main factors for long calls. In-ear earbuds that seal tightly can cause ear canal fatigue over several hours, particularly if they are heavy or if the fit is imperfect. Smaller, lighter earbuds with a comfortable ear tip that does not press hard against the canal tend to be more wearable for extended use. Taking short breaks or alternating which ear is in use can help during very long call sessions.
What causes my voice to sound muffled during calls?: Several things can cause muffled voice quality: a poor microphone seal or microphone placement far from the mouth, overly aggressive ENC processing that also filters out parts of your voice, a weak Bluetooth connection causing compressed or degraded audio, or the earbud microphone being blocked by hair, a collar, or other obstruction. If ENC processing is the cause, reducing or disabling ENC (if the earbud app allows it) can improve voice clarity at the cost of more background noise for the listener.