SMILEON / AUDIOBOOSTBoost quiet recording volume
Apply gain to a quiet recording, using the automatic setting or your own level. Listen to the source and result before saving.
Tool illustrationHow to use
- Choose a recording and review the automatically processed result.
- Change the requested gain if needed, then apply it.
- Compare both recordings and save a WAV copy.
What this tool does
- Requested gain from 1–20× and automatic level selection
- Clipping safeguard with actual-gain display and before/after playback
File and processing limits
- Accepts WAV, MP3, M4A and OGG; codec support depends on your browser.
- Up to 50 MB and 20 minutes, with a 128 MB decoded-audio memory cap. Your device may need shorter recordings.
- Results are PCM 16-bit WAV copies. Format and file size can differ from the source, and the copy may be larger.
- Background noise is amplified too. This tool does not remove noise or restore missing speech.
File processing and privacy
Files are processed on your device and are not uploaded to a server. Tool assets load from this site. Use is free, with no sign-in required.
Frequently asked questions
Why is the actual gain lower than requested?
The clipping safeguard can lower gain to prevent loud peaks from clipping. Check the actual gain shown in the tool.
Does it boost only the voice?
No. Gain applies to the whole recording, so background noise gets louder as well.
Do I need to upload my file?
No. Your selected file is processed in your browser. No account is required, and the original file stays unchanged.
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