Free Online Converter
Normalize Audio
Auto-adjust audio volume to optimal level. Fast, secure processing directly in your browser.
How to Convert Audio to Normalize Audio
- Click or drag your Audio file into the upload area above
- Wait for the file to be loaded (happens instantly in your browser)
- Click the "Convert File" button
- Your processed Normalize Audio file will automatically download
Why Convert Audio to Normalize Audio?
Audio that is too quiet, or wildly uneven between recordings, is the most common audio problem there is. Normalization fixes it by analyzing loudness the way humans hear it and adjusting the audio to a consistent target level.
This tool uses EBU R128 loudness normalization (FFmpeg’s loudnorm filter) with a target of −16 LUFS integrated loudness and a −1.5 dBTP true-peak ceiling — the level commonly used for podcasts and streaming platforms. That means output that sounds consistent next to professionally produced audio.
Processing happens in your browser via WebAssembly FFmpeg: your recordings are never uploaded, and there are no length or file limits imposed by a server.
Key Features
About Audio and Normalize Audio Formats
Audio (Audio File)
Audio is a file format for storing and exchanging digital content.
Normalize Audio (Auto-adjust audio volume to optimal level)
Normalize Audio is a file format for storing and exchanging digital content.
Common Use Cases
- Even out podcast episodes so every episode plays at the same level
- Fix a quiet voice memo, lecture, or interview recording
- Match loudness across tracks before combining them
- Prepare audio for platforms that expect around -16 LUFS
Frequently Asked Questions
What normalization standard is used?
EBU R128 loudness normalization targeting −16 LUFS integrated loudness with a true-peak limit of −1.5 dBTP — the common target for podcasts and streaming. This is perceptual loudness normalization, not simple peak normalization.
What output format do I get?
The same format you upload — an MP3 stays MP3, a WAV stays WAV. The audio is re-encoded with the loudness adjusted.
Why loudness normalization instead of just boosting volume?
Boosting the gain can clip peaks and still leave the audio perceptually uneven. Loudness normalization measures how loud the audio actually sounds over time and adjusts to a target, while the true-peak limiter prevents clipping.
Is my audio uploaded anywhere?
No. FFmpeg runs inside your browser via WebAssembly; the audio never leaves your device. The first use downloads the FFmpeg engine, which can take a few seconds.