Remove background noise from M4A files online
M4A is the default format for iPhone Voice Memos, Zoom's audio-only recordings, and many phone recorders. Those recordings usually come from built-in mics that hear the whole room. Upload the M4A directly, with no conversion, listen to a cleaned 30-second preview for free, and download the full file as WAV if you like the result.
A cleaner starting point for every edit
No converting to MP3 first
Upload the original M4A. Converting adds another round of compression and does nothing for noise removal.
Made for phone and laptop mics
Built-in mics pick up fans, traffic, keyboards and room tone. NoiseWipe reduces those sounds and keeps the voice natural.
Lossless WAV download
The cleaned file comes back as WAV, ready for editors, podcast hosts and transcription tools. Convert it to a smaller format afterward if you need to.
Simple workflow
From noisy source to useful track
No plugin chain to configure. Keep creative decisions in your editor and let NoiseWipe handle the first cleanup pass.
- 1
Upload your M4A
On iPhone, share the Voice Memo to Files first, then upload it. For Zoom, use the .m4a from your local recording folder.
- 2
Hear the free preview
NoiseWipe cleans a 30-second sample. No signup is needed.
- 3
Download clean WAV
If it sounds right, download the full file from $0.99, or use hours from a pack or subscription.
Made for real recording situations
- iPhone Voice Memos
- Zoom audio-only recordings
- Lecture and meeting notes
- Phone interviews
Hear a real before-and-after sample
These are fixed demonstration files, not a promise that every recording will sound the same. Upload your own source for a free preview before purchasing a full export.
Original voice sample
Cleaned voice sample
Supports MP3, WAV, M4A, AAC, FLAC, OGG, MP4, MOV, MKV, and WebM up to 1 GB. The free preview is about 30 seconds; a complete export costs $0.99 or uses plan credits.
Try your own recording freeRelated guide: How to remove background noise from M4A, MOV and WAV files
Frequently asked questions
Do I need to convert M4A to MP3 before removing noise?
No. Upload the M4A directly. Converting first only adds compression.
What format do I get back?
Cleaned audio downloads as WAV, which is lossless and supported by every editor. You can convert it to M4A or MP3 afterward if you need a smaller file.
Is cleaning an M4A file free?
The 30-second cleaned preview is free and needs no signup. Downloading the full file starts at $0.99.