The simplest way to reduce background noise in earphones is to improve the physical seal in your ear canal, which alone can block a significant amount of ambient sound. Beyond that, active noise cancellation, software tools, and a few settings tweaks can eliminate most of what’s left. Here’s how each approach works and when to use it.
Start With a Better Ear Tip Seal
Before spending money on new earphones or apps, check your ear tips. A poor seal is the most common reason background noise bleeds through, and the fix takes about 30 seconds. Most in-ear earphones ship with multiple sizes of silicone tips. If yours feel loose or you can hear your surroundings clearly with nothing playing, try the next size up. The tip should feel snug without pressure or pain.
If silicone tips aren’t cutting it, memory foam tips are a significant upgrade for passive noise isolation. Foam compresses when you insert it, then expands to match the unique shape of your ear canal. That custom-fit seal physically blocks a wide range of mid- to high-frequency sounds, like voices, keyboard clatter, and traffic noise. Silicone is easier to clean and lasts longer, but foam consistently outperforms it at keeping noise out. Brands like Comply and Dekoni sell foam replacements that fit most popular earphone models for around $10 to $20.
Triple-flange silicone tips are another option. They insert deeper into the ear canal and create multiple points of contact, improving isolation over standard single-flange tips. They can feel intrusive at first, so give yourself a few days to adjust.
How Active Noise Cancellation Helps
Active noise cancellation (ANC) uses tiny microphones to pick up external sound, then generates an opposite sound wave that cancels it out. This works best on low-frequency, steady noise: airplane engines, air conditioning hum, train rumble, and similar droning sounds. ANC systems show the biggest attenuation differences at frequencies below 1,000 Hz, while higher-pitched and irregular sounds (like conversations or a dog barking) are harder for the technology to counteract.
There are three main types of ANC. Feedforward systems place microphones on the outside of the earphone to sample incoming noise before it reaches your ear. Feedback systems use an internal microphone near the speaker to detect what you’re actually hearing and correct for it. Hybrid systems combine both, and they deliver the best results because external mics catch noise early while internal mics fine-tune the cancellation in real time. Most premium earphones from Apple, Sony, and Bose now use hybrid ANC.
If your current earphones don’t have ANC, no setting or software can replicate it for incoming audio. It’s a hardware feature. Budget ANC earphones start around $40 to $50, though noise cancellation quality scales steeply with price. Models in the $150 to $300 range typically handle a much broader range of frequencies.
Use Transparency Mode When You Need It
Strong noise cancellation can be too effective in some situations. If you’re walking near traffic, cycling, or working in an office where colleagues need your attention, you may want to hear specific sounds while still reducing general background noise. That’s what transparency mode (sometimes called ambient mode) does. It uses the same external microphones as ANC, but instead of canceling sound, it selectively amplifies useful audio like voices, car horns, or alarms and pipes it through your earphones alongside your music.
Higher-end models use beamforming microphones to focus on directional sounds, like someone speaking to you, while suppressing things like wind interference. Apple’s AirPods Pro, for instance, prioritize human speech frequencies in transparency mode to make conversations clearer. This lets you keep your earphones in without being completely sealed off from your environment.
Software That Filters Noise on Calls
If your problem is background noise during calls or video meetings, rather than noise you hear while listening to music, software-based noise suppression can help dramatically. These tools use machine learning to separate your voice from everything else and strip out the unwanted sounds in real time.
Krisp is the most widely recommended standalone option. It works as a virtual microphone and speaker layer between your earphones and your calling app, filtering noise in both directions. That means it removes noise from your microphone so others don’t hear your surroundings, and it cleans up incoming audio so you hear less of their background noise too. Users have reported teaching classes and taking calls during construction work without the other side hearing anything. Krisp works with Zoom, Teams, Webex, and most other conferencing platforms. It offers a free tier with limited daily minutes and a paid plan for heavier use.
If you have an Nvidia graphics card, Nvidia Broadcast (formerly RTX Voice) provides similar noise filtering for free. It uses the GPU’s processing power to strip background sounds from audio streams. Some users have reported stability issues with certain hardware configurations, so it’s worth testing before relying on it for an important call.
Check Your Device and App Settings
Your operating system and calling apps have built-in noise suppression features that are sometimes disabled by default. On Windows 11, go to Settings, then System, then Sound, then Input. First, make sure the correct microphone is selected. If your system is set to “Stereo Mix” or an array microphone instead of your headset’s dedicated mic, it will capture the entire room. Select your headset microphone as the default input device.
Next, enable audio enhancements. In the same Sound settings, select your headset microphone, open Device Properties, then Additional Device Properties, and under the Advanced tab, check “Enable audio enhancements.” Windows 11 includes built-in noise suppression, but it only works when this option is turned on.
Inside your calling app, there’s usually a separate noise suppression toggle. In Microsoft Teams, go to Settings, then Devices, then Noise Suppression, and set it to “High” or “Auto.” Zoom has a similar setting under Audio. If these are set to “Off,” your microphone transmits raw, unfiltered audio. Turning them on can make a noticeable difference even with basic earphones.
On iPhones running iOS 16.4 or later, Voice Isolation mode during FaceTime and phone calls uses on-device processing to prioritize your voice and suppress background sounds. You can access it from the Control Center during a call.
Combining Methods for Best Results
No single approach eliminates all background noise perfectly. Each method covers a different piece of the problem. Foam ear tips block high and mid-frequency sounds passively. ANC handles low-frequency drone. Software filters clean up call audio. The most effective setup layers two or three of these together.
For everyday listening in noisy environments (commuting, open offices, coffee shops), ANC earphones with well-fitted foam tips will handle the vast majority of ambient sound. For calls and meetings, pairing those same earphones with your app’s built-in noise suppression, or a tool like Krisp, covers both what you hear and what others hear from your end. If you’re on a tight budget, simply switching to the right-sized foam ear tips and enabling your operating system’s audio enhancements can make a surprisingly large difference without any new hardware.