Got an MP3 with Noise? A WAV with Hum? Upload It as-Is.
Your recording is already in MP3, WAV, M4A, FLAC, or OGG — and that is perfectly fine. Denoisr reads every common audio format natively, so you never need to convert your file before cleaning it. Drop the file in whatever format your recorder, phone, or editor exported it, and the AI strips background noise directly from the source.
Denoisr reads your file in the browser first, so you see the exact duration and credit cost before anything uploads — regardless of format.
Works with your format
MP3, WAV, M4A, FLAC, OGG — upload directly without converting to a different format first.
No software install
Everything runs in the browser. Open the page, drop a file, and download the cleaned result.
Credit-based pricing
1 credit = 1 minute. Pay only for what you process, starting with 5 free credits.
Quick answer
Denoisr accepts MP3, WAV, M4A, FLAC, and OGG files without requiring format conversion. Upload your file in whatever format your recorder, phone, or editor exported it, and the AI reduces background noise from the audio directly. You do not need to convert an MP3 to WAV first — the tool processes every supported format natively. Compressed formats like MP3 work well, though a lossless source like WAV gives the AI slightly more audio detail to work with.
- Best for:
- People who have an MP3, WAV, or M4A file and want noise removed without format hassles
- Supported formats:
- MP3, WAV, M4A, FLAC, OGG (audio) and MP4, MOV, WebM, MKV (video)
- Conversion required?:
- No — upload in whatever format you have
- Free credits:
- 5 credits on signup, no card required
Drop your MP3, WAV, or M4A file here
No format conversion needed. Upload the file exactly as your recorder or editor exported it and let the AI clean the noise.
Works with MP3, WAV, M4A, FLAC, and OGG. No format conversion needed.
Drop your audio file here
Upload the recording you want to clean. No format conversion needed.
Sign up free — 5 credits included, no card required.
One file at a time
Upgrade to Starter for 2-file batches
What to expect
What the AI handles well across all audio formats
Whether your file is an MP3, WAV, M4A, FLAC, or OGG, the AI targets the same noise categories. Format does not change what can be removed — it affects the overall fidelity ceiling of the source material.
Works well for
- Fan noise in MP3 podcast exports
- HVAC hum in WAV studio recordings
- Room tone in M4A iPhone voice memos
- Electrical buzz in FLAC archival recordings
- Traffic noise in OGG conference captures
- Appliance drone across any supported format
May not fully fix
- Compression artifacts baked into low-bitrate MP3s (these are not noise)
- Sudden loud sounds like door slams or coughs
- Overlapping voices in a group conversation
- Severely clipped or distorted recordings in any format
- Music tracks or songs (this is a voice cleanup tool)
- Quality loss from multiple rounds of MP3 re-encoding
How it works
Three steps — same workflow for every format
No format conversion, no configuration, no noise-profile selection. The process is the same whether you upload an MP3, a WAV, or an M4A.
Upload your file in any format
Drag and drop or browse for an MP3, WAV, M4A, FLAC, or OGG file. The browser reads the duration locally so you see the credit cost before anything uploads. No need to convert to WAV first.
The AI cleans the audio natively
The model detects background noise in your recording and suppresses it — working directly with the audio data in your file's native format. Pick Clean Noise for a light touch, Enhance Voice for loudness and clarity, or Podcast Ready to also trim filler words.
Download in the original format
Play the before and after side by side in the browser. Download the cleaned version and import it into your DAW, video editor, LMS, or podcast host — the file stays in its original format.
Common use cases
Real recordings people clean — grouped by format
iPhone voice memos (M4A)
Apple's Voice Memos app exports M4A by default. Upload the file directly — no need to convert it in iTunes or GarageBand first.
Podcast exports (MP3)
Most podcast editors export final episodes as MP3. Clean the noise from the finished export or from individual guest tracks before mixing.
DAW session bounces (WAV)
Logic, Reaper, Audacity, and other DAWs typically bounce to WAV. Upload the lossless file for the highest-fidelity noise removal.
Zoom and Meet recordings (M4A)
Zoom exports local recordings as M4A by default. Clean up HVAC hum, keyboard clicks, and room noise from meeting recordings.
Phone interviews (various formats)
Call recording apps export in MP3, M4A, or WAV depending on the platform. Upload whichever format you have — no conversion needed.
Old archived recordings (MP3/WAV)
Recordings from years ago stored as MP3 or WAV on a hard drive. Clean them up without needing the original recording setup.
Supported formats
Every format Denoisr supports — and what to know about each
Different formats have different characteristics. Here is what matters for noise removal.
MP3 — compressed, most common
The most widely used audio format. MP3 uses lossy compression, which discards some audio data to reduce file size. Noise removal works well on MP3 files, though the compressed source means the AI has slightly less detail to work with than a lossless file.
WAV — lossless, best source quality
WAV files store uncompressed audio, preserving every sample from the original recording. This gives the AI the most audio detail for noise separation. If you have both a WAV and an MP3 of the same recording, the WAV will generally produce a cleaner result.
M4A — Apple default, iPhone recordings
M4A is the default format for iPhone Voice Memos, iPad recordings, and GarageBand exports. It uses AAC compression — more efficient than MP3 at the same bitrate. Upload it directly without converting.
FLAC — lossless compressed, audiophile choice
FLAC compresses audio without losing any data — like ZIP for audio. It offers the same quality as WAV in a smaller file. If your recorder or editor exports FLAC, upload it as-is for full-fidelity noise removal.
OGG — open format, web and gaming
OGG Vorbis is an open-source compressed format used in web applications, game audio, and some Linux recording tools. Denoisr handles it natively — no need to convert to MP3 or WAV first.
Honest note on compressed sources
Processing an MP3 that was already compressed will not give you lossless quality — the data discarded during compression is gone. But noise removal still works well. The AI reduces background noise from whatever audio data is present in the file.
Hear the difference
Real recordings in different formats, cleaned with Denoisr
Toggle between original and cleaned to hear how background noise is reduced across different audio formats.
Bus noise recording
MP3 recorded inside a bus — engine rumble, cabin vibration, occasional announcements. Steady mechanical noise the model handles best.
Why creators choose Denoisr
These are the kind of recordings creators actually upload. Hear how Denoisr handles them before you try your own file.
Voice-trained AI
Keeps speech natural while suppressing steady background noise.
One-pass cleanup
No plugins, no DAW, no manual noise-profile selection.
Compare before you commit
Preview the cleaned result alongside the original — download only what sounds right.
Denoisr format support at a glance
MP3 & WAV noise removal — questions answered
Should I convert to WAV before removing noise?+
No. Converting an MP3 to WAV before uploading does not recover the audio data that was discarded during MP3 compression — it just makes the file bigger. Upload your file in whatever format you already have. If you happen to have the original WAV from your recorder, that will give slightly better results because it contains more audio detail, but converting an MP3 to WAV adds no benefit.
Does removing noise from an MP3 reduce quality?+
Noise removal itself does not add compression artifacts. The AI works with the audio data present in your MP3 and outputs a cleaned version. However, an MP3 that was encoded at a very low bitrate (e.g., 64 kbps) has less audio detail to begin with, so the ceiling for quality is lower than a lossless WAV. For most MP3s encoded at 128 kbps or higher, noise removal works well without noticeable quality loss.
Can I remove noise from an M4A file?+
Yes. M4A is fully supported. This is the default format for iPhone Voice Memos, iPad recordings, and many Zoom local recordings. Upload the M4A file directly — no conversion to MP3 or WAV is needed.
What about FLAC and OGG?+
Both are fully supported. FLAC is a lossless compressed format — it gives you the same audio quality as WAV in a smaller file size, making it an excellent source for noise removal. OGG Vorbis is a lossy compressed format similar to MP3 but open-source. Upload either format directly.
What format does Denoisr output?+
The cleaned file is delivered in a standard audio format ready for download. You can import it into any DAW, video editor, or podcast host and continue your workflow.
Upload your MP3, WAV, or M4A and hear the difference
No format conversion needed. Works with MP3, WAV, M4A, FLAC, and OGG. Five free credits included — no card, no commitment.