Audio Normalize
Balance inconsistent volume across multiple files. Optimized for podcast and streaming standards (LUFS).
Drag audio files here to normalize
EBU R128 Standard • 100% Local Processing
Audio Normalizer Use Cases
Frequently Asked Questions
Q. What is the recommended LUFS for Spotify?
Spotify targets -14 LUFS. If your audio is louder, they will turn it down; if quieter, they will turn it up using their own algorithms.
Q. What is the difference between Peak and LUFS?
Peak measures the absolute highest point of a wave, while LUFS (Loudness Units relative to Full Scale) measures perceived loudness over time. LUFS is the industry standard for loudness.
Q. Does normalizing multiple files preserve relative dynamics?
Yes, if you process them as a batch, you can choose to maintain the relative volume differences between tracks while bringing the overall set to a target level.
Q. Will normalizing decrease my audio quality?
No. Normalization is a linear gain change. It simply scales the amplitude without introducing distortion or re-encoding artifacts when using lossless formats.
Q. What are the standards for Podcasts?
The common industry standard for podcasts is -16 LUFS for stereo content and -19 LUFS for mono content.
Q. What is Target Loudness (Integrated)?
It represents the average perceived loudness of the entire track. Platforms like YouTube and Spotify use -14 LUFS as a standard so that all content sounds consistent in volume without manual adjustment.
Q. Why is the True Peak Limit necessary?
It measures the actual peak level including inter-sample peaks. Setting it to -1.0 dBTP prevents audio distortion (clipping) during digital-to-analog conversion.
📱 Platform Loudness Standards (LUFS)
Different platforms have different target loudness levels to ensure a consistent listening experience for their users.
| Platform | Target (LUFS) | True Peak (dBTP) | Notes |
|---|---|---|---|
| Spotify | -14 LUFS | -1.0 dBTP | Standard setting |
| Apple Music | -16 LUFS | -1.0 dBTP | Sound Check on |
| YouTube | -14 LUFS | -1.0 dBTP | Standard for video |
| Amazon Music | -14 LUFS | -1.0 dBTP | Similar to Spotify |
| Tidal | -14 LUFS | -1.0 dBTP | Normal mode |
| SoundCloud | None | -1.0 dBTP | No normalization |
| Podcast | -16 LUFS | -1.0 dBTP | Stereo standard |
| Broadcast (EBU) | -23 LUFS | -1.0 dBTP | European TV |
| Broadcast (ATSC) | -24 LUFS | -2.0 dBTP | US TV |
📊 Measurement Comparison: Peak vs RMS vs LUFS
| Method | What it Measures | Perceptual Correlation | Primary Use Case |
|---|---|---|---|
| Peak | Maximum amplitude | Low | Preventing clipping |
| RMS | Average power | Medium | Legacy volume matching |
| LUFS (Integrated) | Average perceived loudness | Very High | Platform standards |
| Loudness Range (LRA) | Dynamic range | High | Consistency across tracks |
💡 LUFS is the most accurate representation of how humans perceive loudness.
Key Features
- EBU R128 standard compliant loudness normalization
- Batch processing support for multiple files at once
- 100% Private: All processing happens locally in your browser
- Supports MP3, WAV, FLAC, and OGG formats
Our professional audio normalizer provides an easy way to level audio volume online. Using the industry-standard EBU R128 algorithm, it ensures your audio meets the loudness requirements of various platforms without quality loss.