AI Voice Enhancer.
Enhance Muffled Speech and Audio in One Click.
A free AI voice enhancer and audio enhancer in one. Drop in a recording that sounds noisy, muffled or uneven, and hear a cleaned version before you commit to anything.
Upload File
What Gets Enhanced
What Our AI Voice Enhancer Fixes
Audio enhancement goes beyond noise removal. The AI speech enhancer analyzes and improves eight distinct quality dimensions at the same time, from clarity to loudness, without manual configuration.
Voice Clarity
Boosts voice clarity, normalizes volume, and sharpens consonants for crystal clear audio in the speech range.
Volume Normalization
Evens out loud and quiet sections so every word is heard without constant manual adjustment.
Frequency Balance
Corrects thin, tinny, or boomy audio by rebalancing low, mid, and high frequencies to studio standards.
Background Noise
Strips hiss, hum, wind, traffic, and room noise while preserving intentional audio and voices.
Echo & Reverb
Tightens room reverb and removes echo from untreated spaces, from closets to conference rooms.
Dynamic Range
Compresses peaks and lifts quiet passages so your audio sounds consistent and professional.
Presence & Warmth
Adds subtle harmonic enhancement that makes voices sound richer and more engaging on any speaker.
Artifacts & Clipping
Repairs digital clipping, pops, and compression artifacts that make audio sound harsh or distorted.
Why Noise Reducer
A Free AI Audio Enhancer Built Around the Human Voice
Most tools bury speech enhancement inside a full video editor. This is a free AI audio enhancer and AI voice enhancer in one, tuned for the human voice rather than for mastering music, which is why speech comes out natural instead of processed.
Audio + Video Support
Upload audio or video directly and enhance the speech track without extracting it first.
Specialist AI Model
The voice enhancer runs a custom Mel-band neural network with a LoRA adaptation layer, trained on hundreds of hours of clean and noisy speech across 20+ language families. It does noise removal and voice isolation on the same pass, working as a voice cleaner and a voice isolator at once: it preserves natural tone, lifts voice clarity, and rebalances volume without making speech sound robotic.
No Account to Start
Upload, enhance, and preview the result before creating an account. Full confidence in the quality before any commitment.
How It Works
How to Enhance Speech and Voice Recordings
From upload to download in under two minutes. One click audio cleaning that needs no audio editing experience.
Upload Your File
Drag and drop any audio or video file. Supports MP3, WAV, M4A, FLAC, MP4, MOV, and more.
AI Analyzes Audio
The AI maps noise, frequency imbalances, volume issues, and clarity problems across the entire track.
Preview & Adjust
Toggle between original and enhanced. Adjust enhancement strength if needed.
Download Enhanced
Download your enhanced file at full quality. Video files keep their original resolution intact.
Formats & Limits
Supported Formats, File Size and Length
The voice enhancer accepts audio and video directly, so you do not need to extract the audio track before uploading a video.
Audio formats
MP3, WAV, M4A, FLAC and AAC, uploaded straight from your device or recorded in the browser.
Video formats
MP4, MOV, MKV, AVI and WebM. Upload the video directly to enhance its speech track.
File size and length
The audio upload limit is 500 MB, including audio extracted from video. Free processing supports files up to 20 minutes long, subject to your remaining allowance. Longer recordings require sufficient balance or an eligible plan.
Free allowance
Up to 120 minutes of processing per rolling 24 hours, shared across noise reduction and vocal separation. Free previews are limited by your remaining allowance. No daily free full-download minutes are included; full downloads require sufficient balance or an eligible plan.
Use Cases
Made for Podcasters, Creators, Meetings and Course Videos
Whether you record podcasts, shoot videos, teach a course, or sit in a meeting, the result is the same: broadcast-quality audio. The same AI voice enhancer handles every one of these recording types.
🎙️
Enhance Speech in Podcasts
Enhance speech in voice recordings to broadcast-ready quality. Even out volume between guests, remove room noise, and clean every audio, video, or interview file. No audio editor needed.
📺
Enhance Speech in YouTube Videos
Upload any audio, video, or screen recording directly. The AI enhances speech in the audio track while preserving video quality. Publish with professional sound.
🎭
Voice Enhancer for Voice-Over Artists
This voice enhancer lifts home studio recordings to studio quality. It removes room echo, balances frequencies, and adds presence to your voice, whether the job is an audiobook chapter or a 20 second voiceover.
💼
Business & Meetings
Clean up webinar recordings, Zoom calls, and product demos. Remove HVAC hum and ensure every speaker is heard clearly.
🎓
Education & Courses
Screen recordings and lecture captures enhanced for clear delivery. Students hear every word on any device.
📱
Social Media & Reels
Short-form video audio is unforgiving on mobile speakers. Enhance before posting to Instagram, TikTok, and LinkedIn.
Speech vs Noise Reduction
How Speech Enhancement Builds on Noise Reduction
Noise reduction strips unwanted sound while keeping your original voice intact. Speech enhancement also lifts voice clarity, evens out volume, and balances frequencies. Different jobs, different tools, this app does both, depending on what your file needs.
🔊 Noise Reduction
Removes background noise (hiss, hum, wind, traffic, room noise)
Preserves the original voice character exactly
Leaves your editor in control of volume and EQ
Maintains the file's original tonality
Works on non-speech audio too (music, sound effects)
Single-pass, predictable processing
✨ Audio Enhancement
Removes noise plus boosts voice clarity
Normalizes volume across entire track
Fixes muffled, tinny, or boomy recordings
Balances frequencies to broadcast standard
Reduces echo and room reverb
Noise removal and voice enhancement in one pass
Time Saved
Less Time Editing, More Time Publishing
Cleaning a voice track by hand means a noise gate, an EQ pass, a de-esser, a level match and a render. The AI audio enhancer collapses that into one upload.
🛠️ Manual post-production
- Set a noise gate threshold by ear, then check it did not clip words
- Sweep an EQ to find the hum, notch it, re-listen
- Run a de-esser to tame sibilance without dulling the voice
- Match levels across speakers or across takes
- Render, listen back, adjust, render again
⚡ One pass with the voice enhancer
- Upload the audio or video file as it came off the recorder
- Noise, hum, echo, sibilance and levels handled together
- Preview against the original before you commit
- Download and publish
- No audio editing experience needed at any step
This removes editing steps rather than promising a fixed number of minutes saved. How long a manual pass would have taken depends on the recording.
Privacy
Your Files Stay Private
Interviews, client calls and unreleased recordings go through this tool every day. Here is exactly what happens to a file you upload.
Deleted after processing
Uploaded audio and video files are automatically deleted within 24 hours after processing, as described in our privacy policy.
Encrypted in transit
Files are encrypted in transit using SSL/TLS. Our privacy policy explains how recordings are handled during processing.
Used for your recording
Uploaded audio and video are used solely for processing. See our privacy policy for the full details of data use and retention.
Pro Tips
Six Recording Habits for Cleaner Audio
AI enhancement works best when the source audio is reasonably clean. These practices lower the noise floor and give the AI more to work with.
Tip 01
Record in a quiet space
Choose the smallest, softest room available. Closets full of clothes naturally absorb reflections and reduce room noise.
Tip 02
Use a dedicated microphone
A dedicated mic 6–8 inches from your mouth dramatically increases signal-to-noise ratio compared to built-in device mics.
Tip 03
Eliminate ambient sources
Turn off fans, air conditioning, and computers with loud cooling. Shut doors and windows before pressing record.
Tip 04
Record room tone first
Capture 5 seconds of silence before your main take. This gives the AI a clean noise profile and often improves processing quality.
Tip 05
Watch your levels
Audio clipping (distortion from recording too loud) is permanent damage. Keep your peaks below -6 dB for the best results.
Tip 06
Use wind protection outdoors
A deadcat or foam windscreen prevents low-frequency rumble that even AI struggles to cleanly restore.
Simple Pricing For Everyone
Pricing built for business of all sizes. Always know what you’ll pay.
What Users Say
Real Feedback From Podcasters and Video Creators
A small sample of the 312 reviews behind the 4.8 average rating. See the full reviews page for the rest, including verified Trustpilot submissions.
★★★★★
“Cleaned up a Zoom recording for a podcast guest I could barely hear. Voice clarity jumped and the volume evened out without sounding processed. Did the same job a paid editor used to do for me.”
From Drake Lastro, Podcaster · May 06, 2026
★★★★★
“Dropped a 12-minute YouTube interview shot in a coffee shop. The speech enhancer pulled the voice clean of background noise without touching the video. Saved me an entire editing session.”
From John Richmore, Video Creator · Mar 30, 2026
★★★★★
“Works really well on home studio recordings. Couldn't fully rescue a clipped take I sent through but the preview warned me, so I re-recorded. Honest tool, fair pricing.”
From Shehryar Shabeer, Voice-Over Artist · Mar 06, 2026
Honest Limits
What This Voice Enhancer Will Not Fix
Speech enhancement has limits. Preview the result against your original recording before deciding whether it meets your needs.
⚠️
Heavily clipped recordings
Peaks distorted in the original signal cannot be reconstructed. Re-record at a lower input level if possible. Watch your levels and keep peaks below -6 dB.
🎙️
Severe room reverb at distance
Recordings where the speaker is more than 6 feet from the mic in a reverberant room exceed what speech enhancement can cleanly fix. Move closer to the mic or treat the room.
📞
Phone-grade compression
Calls compressed below 8 kHz sample rate have lost frequency information our model cannot restore. A Zoom recording at normal quality works well; a re-recorded speakerphone capture does not.
🎵
Music and non-speech audio
The model is tuned for voice and is not designed for instruments, sound effects, or mixed music tracks.
FAQ
Common Questions About Voice and Speech Enhancement
Answers to common questions about using our AI voice enhancer and audio enhancer.
What is an audio enhancer and how does it work?
An AI audio enhancer cleans up your speech and improves audio quality automatically. It boosts voice clarity, normalizes volume, and removes background noise in one pass. No manual editing is needed.
Is this an AI speech enhancer or an audio enhancer?
It is an AI audio enhancer focused on speech. Use it to improve voice recordings, podcasts, interviews and the spoken audio in videos. It is not a music mastering tool.
Is this audio enhancer free to use?
You can try speech enhancement and preview the result without creating an account, within the available free allowance. Full downloads depend on your available balance or plan. See the pricing section for current options.
Can I enhance audio in a video file (MP4, MOV)?
Yes. Upload a supported video directly to enhance its speech track without extracting the audio first.
How long does it take to enhance audio?
Our AI audio enhancer processes most files shorter than 10 minutes in under 60 seconds. Larger or longer files may take a bit longer.
What types of audio problems does this tool fix?
AI audio enhancement can remove background noise from audio, fix muffled speech, balance low volume, and clear hiss, hum, wind, echo, and reverb. It also smooths unbalanced frequencies in one pass.
Does enhancing audio change the voice or tone?
No. The AI keeps the natural tone and character of your voice. It improves voice clarity without making speech sound robotic or fake.
What's the difference between noise reduction and audio enhancement?
Noise reduction removes unwanted sounds like hiss, hum, and traffic. Audio enhancement does more. It boosts voice clarity, balances volume, and smooths frequencies across the full speech track.
Can I use this to enhance audio for a podcast?
Yes. This AI audio enhancer cleans up podcast speech recordings, evens out volume between speakers, and delivers broadcast-ready audio for post-production.
What audio formats are supported?
Our audio enhancer supports MP3, WAV, M4A, AAC, FLAC, OGG, and AIFF audio files. It also supports MP4, MOV, AVI, MKV, and WebM video files.
Is this better than Adobe Podcast Enhance Speech?
Both tools enhance recorded speech and support video. Results depend on the recording, so compare previews with your own file. Noise Reducer lets you try a preview without creating an account; check each service for its current plans and limits.
Do I need to create an account to use the audio enhancer?
No account is needed to try a preview within the available free allowance. Full downloads depend on your balance or plan.
How do I enhance audio quality for a YouTube video?
Upload your video file directly. Our AI audio enhancer improves the speech track while keeping the video intact. Download the enhanced file and re-upload it to YouTube. No need to extract audio separately.
What file formats does the voice enhancer support?
Upload common audio formats such as MP3, WAV, M4A, FLAC and AAC, or video formats such as MP4, MOV, MKV, AVI and WebM. Video uploads can be enhanced without extracting the audio first.
Is my file private when I use this audio enhancer?
Files are encrypted in transit over SSL/TLS and used for processing your recording. Uploaded audio and video files are automatically deleted within 24 hours after processing. See our privacy policy for details.
Can it enhance the voice in a video, not just an audio file?
Yes. Upload a supported video such as MP4, MOV, MKV or WebM directly. The AI voice enhancer improves its speech track without a separate audio extraction step.
How much editing time does an AI audio enhancer save?
It replaces a sequence of manual steps rather than a fixed number of minutes: a noise gate, an EQ sweep for hum, a de-esser for sibilance, a level match across speakers, then a render and a listen back. The voice enhancer does all of it in one pass, and you preview against the original before committing.
Is this a real-time voice enhancer for calls?
No. This is a file based tool, not a live microphone filter. Record the call or meeting first, then upload the recording. If you need noise suppression while you are speaking, a real time tool such as Krisp is the right category for that job.
Drop a File. Hear the Difference.
Upload any audio or video file and hear what the speech enhancer does in under 60 seconds.
