How to Remove Background Noise from Audio Online

Why Background Noise is a Problem

Background noise can ruin an otherwise great recording. Whether it's a podcast interview with air conditioning hum, a voice memo with street noise, or a music recording with electrical hiss — noise makes content sound unprofessional.

Common types of background noise:

• Hiss — constant high-frequency noise (often from microphones)
• Hum — low-frequency buzz from electrical interference (50/60 Hz)
• Ambient noise — air conditioning, traffic, people talking
• Fan noise — computer fans, HVAC systems
• Wind noise — outdoor recordings

The Easy Way: Use Our Online Noise Remover

Our Noise Remover tool works entirely in your browser:

1. Upload your noisy audio file
2. Adjust the noise reduction threshold
3. Set the reduction strength
4. Preview the result
5. Download the cleaned audio

No software to install, no account needed, and your files stay private on your device.

Understanding Noise Reduction Settings

Threshold

The threshold determines what the tool considers "noise" versus "signal" (your desired audio):

• Low threshold: Only removes the most obvious noise
• High threshold: Removes more noise but may affect your audio quality

Start low and increase gradually until the noise is gone but your voice still sounds natural.

Reduction Strength

This controls how aggressively the noise is removed:

• Light (25-40%): Gentle cleanup, preserves natural sound
• Medium (40-70%): Good for most situations
• Heavy (70-100%): Maximum noise removal, may introduce artifacts

Tips for Best Results

1. Start with Good Recording Practices

Prevention is better than cure:

• Record in a quiet room
• Use a directional microphone
• Keep your microphone close to the sound source
• Turn off fans and air conditioning while recording

2. Use the Right Amount of Reduction

Over-processing makes audio sound robotic or "underwater." It's better to leave a tiny bit of noise than to destroy your audio quality.

3. Process in Sections

If your recording has varying noise levels, process the noisy sections separately rather than applying the same settings to everything.

4. Preview Before Downloading

Always listen to the cleaned audio before finalizing. Make sure:

• Speech sounds natural
• No metallic or robotic artifacts
• The overall tone hasn't changed dramatically

Common Use Cases

Podcasts

Podcast recordings often have room noise, air conditioning hum, or computer fan noise. Use medium reduction strength (40-60%) to clean up without making voices sound unnatural.

Interviews

Remote interviews via phone or video call often have compression artifacts and background noise. Focus on reducing the constant hiss rather than trying to remove all imperfections.

Voice Memos

Quick voice recordings from phones typically have lots of ambient noise. Our noise remover works great for making these sound cleaner and more professional.

Music Recordings

Be careful with music — aggressive noise reduction can remove subtle musical details. Use light reduction and focus only on clearly unwanted noise.

When Noise Reduction Isn't Enough

Some recordings are beyond simple noise reduction:

• Overlapping conversations — Noise reduction can't separate voices
• Extremely loud noise — If noise is louder than your signal
• Variable noise — Noise that constantly changes character

In these cases, you might need to re-record if possible.

Try It Now

Ready to clean up your audio? Our Noise Remover is free, works in your browser, and processes your files privately. Upload your audio and hear the difference in seconds!