Questions, answered

Noise Remover is an Android app that removes background noise from voice recordings and videos: fans, air conditioning, hum, hiss, traffic, wind, rain, keyboard clicks. It works offline on the phone, with no account and no upload, and exports a clean file with no watermark. On Google Play it is listed as “AI Noise Remover: Clean Voice”.

Creators who record on their phone (podcasts, YouTube, TikTok and Reels, voice-overs) and anyone with a voice to clean: journalists, students recording lectures, professionals in meetings, people sending voice notes. See the use cases.

Steady noise (fans, air conditioning, fridges, computers, electrical hum, microphone hiss, engines), outdoor noise (traffic, wind, rain, building sites), plus short clicks such as keyboard typing. In our lab test at full intensity, these dropped by 11 to 43 dB during the speaker’s pauses. Results per noise and how we measured.

Yes. The model separates speech from noise without understanding the words, and it was trained on dozens of speech datasets covering many languages and accents. Noise Remover cleans a voice in any spoken language.

Android 8.0 or later, 64-bit: phones and tablets, from Google Play, which offers the app only to devices that can run it. It is built for mid-range phones too: the noise model is light enough to clean faster than real time without a flagship processor. Some features need a newer version: choosing the microphone in the recorder (Android 10 or later) and Opus export (Android 10 or later).

Yes, on Android 10 or later. Before you record, the recorder lets you pick the phone’s own microphone, a wired headset, a USB microphone or a Bluetooth headset, and remembers the choice for as long as it stays connected. If it disconnects mid-recording, the recording pauses, and Resume carries on with the phone’s microphone. A Bluetooth headset records at call quality. On Android 8 and 9, the recorder cannot choose: Android uses a plugged-in microphone on its own, and never a Bluetooth headset. The app asks for no Bluetooth permission.

While you record, tap Marker to drop a numbered flag at the current moment. On the result screen the markers appear on the waveform and as buttons under the trim controls: tap one to jump there. They help you find a retake or a key line again. They can sit a few tens of milliseconds off the sound, so they are for finding, not for cutting on, and they cannot be edited afterwards.

Not yet. Noise Remover runs on Android today, and an iPhone version is coming, built on the same on-device engine so your audio stays on the phone there too. This site will say when it is available.

Yes. The cleaning runs entirely on your phone, so Noise Remover works in airplane mode, without signal or Wi-Fi. Only three things use the network, and never with your audio: the ads of the free version, the purchase of Pro, and usage statistics and crash reports (Firebase), with no name, e-mail or account attached.

No. Your recordings, imported files and cleaned results never leave the phone unless you share them yourself: Noise Remover has no server to send them to. They are also excluded from Android’s cloud backup and device-to-device transfer.

No. There is no sign-up, no e-mail and no password. If you buy Pro, it is attached to the Google Play account your phone already uses.

Usage statistics and crash reports (Firebase), with no name, e-mail or account attached; the advertising identifier, which Google AdMob reads in the free version to show ads, with Google’s consent form where the law requires it, and Firebase Analytics reads for measurement; and the purchase record if you buy Pro. Never your audio. The privacy policy lists everything.

Yes, and that is one reason Noise Remover works on the phone: an interview with a source, a dictation or a family message never leaves the device. You remain responsible for having the right to record and process what you clean.

Audio: MP3, M4A, AAC, WAV, FLAC, OGG, Opus, AMR, 3GP. Video: MP4, 3GP, MKV, WebM, MOV, where the phone can decode it; only the soundtrack is cleaned. The few formats Android cannot decode, such as WMA or AC-3 tracks, and DRM-protected files are refused with a message that says why.

Yes. Import a video from your gallery or share it from another app: Noise Remover cleans the soundtrack and never touches the picture. Export the cleaned audio and replace the track in your video editor, or, with Pro, export the video itself as an MP4. Cleaning a video.

Yes, with Pro: Noise Remover exports the video as an MP4 with its cleaned soundtrack, ready to post, so there is nothing to re-sync in an editor. The picture is copied as it is, never re-encoded, and the export is always an MP4: it works with H.264 and HEVC videos, and AV1 from Android 14, while a WebM in VP8 or VP9 can only be exported as audio. A trimmed start moves back to the video’s previous keyframe, and the app says by how much. Other tracks of the video, such as subtitles, are not copied.

In the chat, select the voice note, tap Share and choose Noise Remover. The cleaning starts by itself; then share the clean file back to the conversation, where it arrives as an audio file. Cleaning voice messages.

M4A by default, AAC at 48 kHz and 128 kb/s, which every app, editor and platform accepts. WAV, MP3 and, on Android 10 or later, Opus are offered too. Share it to any app, or save it to a folder of your choice.

Yes. Besides M4A, Noise Remover exports lossless WAV for editing, MP3 for anywhere and, on Android 10 or later, Opus for small files. Choose the format under the export buttons: the app remembers it for the next file.

A stereo file or video is cleaned in stereo, with both channels turned down together so the voice stays where it was, and it is exported in stereo unless you choose Mono in the export options, which folds the two channels into one: it suits a single voice. A mono file stays mono, and the app’s own recorder records in mono.

In the app’s History, on your phone, until you delete them. To use one elsewhere, share it to any app or save it to a folder you choose: it is named after the original, with “(clean)” added.

On the free plan, the first 3 minutes of each file are cleaned (15 after a short video). With Pro there is no length limit beyond your phone’s free space: cleaning needs about 18 MB per minute of a mono recording while it works, and twice that for stereo.

Yes: select up to 20 files, audio or video, and Noise Remover cleans them one after the other, with the same settings. Then save them all to one folder, or share them all at once. A file Android cannot decode is left out and listed, and the others carry on. On the free plan, each file is one of the day’s 3 cleanings, and a short video adds one more; with Pro there is no daily count.

Yes. The cleaning carries on in the background, and a notification shows the progress and tells you when the file is ready. If you decline notifications, it still carries on.

Lower the intensity. At 100% the model removes everything it can, which can thin a voice; the default 80% caps the reduction near 29 dB, and 50 to 70% suits a voice recorded close to loud noise. Compare with the Original / Cleaned switch as you go. Keeping a voice natural.

Because the cleaned voice ended up more than 6 dB below the original over the speech, which usually means another voice overlapped yours. A lower intensity keeps it natural.

In our lab test at full intensity, steady and outdoor noise dropped by 15 to 43 dB during the speaker’s pauses, with the voice changing by about 1 dB (1.6 dB at worst). The default intensity caps the reduction near 29 dB to keep voices natural. Full results and method.

Not reliably. An instrumental background is pushed down by only 8 to 9 dB in our lab test, and a song keeps its singer as a second voice. Noise Remover is made for voices and the noise around them, not for separating music. How we measured.

No. Echo is the voice’s own reflections, so a noise remover keeps it, and the noise on top is all that goes. Record closer to the microphone, in a softer room. Echo or background noise?

No. Background chatter is speech too, so it stays, and a voice overlapping yours can make yours come out a little quieter. Interviews where people take turns are fine.

It can colour it slightly, since there is little noise to remove. Compare with the Original / Cleaned switch, lower the intensity, or keep the original if it already sounds right.

It runs faster than real time on a mid-range phone: a minute of audio takes seconds. The progress is shown as a percentage, with the waveform filling in as it goes.

Yes, with ads: 3 cleanings a day, each covering the first 3 minutes of the file, with every cleaning tool included. Free exports have no watermark and the same quality as Pro.

No ads, files of any length and unlimited cleanings, plus video export with the cleaned soundtrack. The cleaning itself is the same: Pro sells comfort, not quality. Free and Pro compared.

No, on the free plan as on Pro: no audible tag, no logo. Noise Remover never holds a file back after processing to make you pay.

On the free plan, an optional short video adds one cleaning for the day, or cleans a file up to 15 minutes. A video in Settings also turns ads off for 60 minutes. A video closed before the end unlocks nothing.

Plans, prices and any free trial are shown in the app before you pay, in your currency, and confirmed by Google Play. Prices differ between countries, so this site does not quote them.

In your Google Play account, under Subscriptions; the app opens the right page from its settings. Pro stays active until the end of the period already paid. Uninstalling the app does not cancel a subscription.

Install the app on the new phone with the same Google account: Pro comes back on its own, or with Restore purchases in the app.

Either Android cannot decode it (WMA, AC-3, a DRM-protected file), the video has no audio track, or the recording lasts under 1 second. The message names the problem.

Cleaning needs about 18 MB of free space per minute of a mono recording while it works, and twice that for stereo. Free some space, or delete originals or old cleanings from Settings, then try again.

Android closed the app while it was cleaning. Tap the row in History to start it again from the same file.

The 3 free cleanings come back at midnight. Until then, a short video adds one, and Pro removes the limit. Re-exporting a past cleaning from History never counts.