Skip to content
audo

Voice cleaner: clean up voice recordings

Clear speech from voice memos, phone calls, lectures, and meetings.

10M+ files processed since 2021

Full

From subtle to full.

More options
Free for the first minute, 3 times a day. No sign-up.
Powered byAudio enhancer· tuned for voice memos, calls, and lecturesMade for voices. Music and other sounds are removed too.
Maybe looking for:Remove noise· Hiss, hum & background noiseRemove echo· Room reverb & hollow sound

Hear the difference

Play Original, then Enhanced.

Enhanced fixes the echo and noise.

Made with Audio enhancer

Works in any language

  • Hello
  • こんにちは
  • Hola
  • 안녕하세요
  • Bonjour
  • नमस्ते
  • Hallo
  • 你好
  • Ciao
  • مرحبا
  • Olá
  • Привет
  • Hoi
  • สวัสดี
  • Merhaba
  • Γεια σας
  • Xin chào
  • שלום
  • வணக்கம்
  • Kia ora

How to clean up a voice recording

  1. 1

    Add a voice memo, phone call, lecture, or video meeting.

  2. 2

    Choose Strength, from Full down to Subtle.

  3. 3

    Listen, then download the clear recording.

Voice recordings it helps most

Make muffled voice memos, thin phone calls, and distant lectures clear and easy to follow.

  • iPhone & Android memos

    Voice memos from a phone

    A memo recorded in a pocket, a car, or an echoey hallway is hard to listen to. Clean it in your phone's browser and get a clear M4A back. For the steps, see how to fix a muffled iPhone Voice Memo.

  • Calls & pocket recorders

    Phone calls and voice recorder files

    A phone line carries only part of the voice, so calls sound thin, and small recorders pick up handling noise. Audo makes the voice fuller and clearer. For small recorders, see Plaud Note audio cleanup.

  • Classrooms & lectures

    Pull distant teachers and presenters closer to the mic

    From ten rows back in a lecture hall, the microphone picks up more of the room than of the lecturer. Signed in, recordings can be up to 10 hours long. For study notes, turn the clean recording into text with Transcribe audio.

  • Meetings & interviews

    Zoom, Teams, and laptop recordings

    Laptop fans, typing, and echoey meeting rooms make calls hard to follow. Audo cleans every voice in the call. To get the words as text afterwards, see Transcript from a Zoom recording.

Memos, calls, and lectures

Audo's voice cleaner and recording cleaner — powered by Audio enhancer — uses clean voice AI on WAV, MP3, M4A, AAC, FLAC, OGG, Opus, WebM, AIFF audio and MP4, MOV, MKV, WebM, AVI video, up to 10 GB with no account, and the first minute of every file is free, 3 times a day, without signing up. The first minute of a memo is clean in about 8 seconds, a 20-minute recording in about 38 seconds, and a 1-hour lecture in under 2 minutes (about 1 minute 42 seconds for audio). If the voice itself already sounds close and only the background is noisy, Remove noise keeps it exactly as recorded.

Each kind of voice recording goes wrong in its own way. A voice memo picks up the room's echo. A phone call carries only part of the voice, roughly 300 to 3,400 Hz, so it sounds thin. A lecture recorded from the back of the room is distant, and laptop calls pick up fans and typing. The example above is a real classroom.

The cleaner gives each voice a fuller, closer sound and sets the volume. An M4A, MP3, WAV, or FLAC comes back in the same format, ready for Interview transcription or Remove silence.

Questions

Is there a free AI voice cleaner?

Yes. Audo's AI voice cleaner cleans the first minute of each recording free, 3 times a day, with no sign-up. Past that, you pay $0.05 a minute ($3.00 an hour) with no subscription — see pricing.

How do I clean up a voice recording?

Add your file to Audo's voice cleaner, pick a strength from Full to Subtle, and download the clear version. Room echo, muffled tone, and background noise are repaired together.

What app can I use to clean up my voice recordings?

No app install is needed: Audo runs in your phone's browser on iPhone or Android. iPhone Voice Memos upload as M4A files and come back as clean M4A files.

Can it fix a phone call recording?

Yes. A phone line carries only part of the voice, which is why calls sound thin. Audo gives the voice a fuller sound and clears the line's noise.

Does it work on Zoom or Teams recordings?

Yes. Zoom saves an audio-only .m4a alongside its MP4 video recording, and both upload directly to Audo's voice cleaner with any video picture untouched. For speaker-labeled text afterward, see Transcript from a Zoom recording.

Can it clean a long lecture recording?

Yes. Audo's voice cleaner brings a distant, echoey lecturer forward and clears auditorium noise on files up to 10 hours long when signed in.

Does it work when several people speak?

Yes. Audo's voice cleaner cleans every speaking voice in the file, from a two-person phone interview to a roundtable meeting.

Can AI clean up a voice recording without sounding over-processed?

Yes. Audo's voice cleaner rebuilds thin or distant speech, and sliding Strength from Full toward Subtle blends your original recording back in whenever you want a gentler touch. To keep your voice exactly as recorded, such as for a voice cloning sample, use Remove noise instead.

More tools

All tools

For AI assistants and developers

Ask ChatGPT, Claude, or a coding agent to do this for you, or call it from your own code. When an agent's free result is cut short, it gives you a link to finish the whole file, no sign-up.

Show the free API call
Free API · no key
curl -F file=@voice-memo.m4a https://audo.ai/api/try/enhance-voice -D response.headers -o response.body