QUANTUM BOOST

INPUT WAVE

INPUT SPECTRUM

20Hz250Hz2kHz16kHz

PEAK

-60.0 dB

RMS

-60.0 dB

LUFS

-60.0 dB

GAIN

0.0

1.000x

LUFS TARGET

LUFS Approximation: Simplified calculation with ±2-3 dB accuracy.

This is a simplified approximation (±2-3 dB accuracy). For professional mastering, use a dedicated LUFS meter with ITU-R BS.1770-4 compliance.

TRUE PEAK CEILING

-1.0 dB

LOAD AUDIO

WAV • MP3 • FLAC

Drag & Drop or Click

OUTPUT WAVE

OUTPUT SPECTRUM

20Hz250Hz2kHz16kHz

PEAK

-60.0 dB

RMS

-60.0 dB

LUFS

-60.0 dB

QUICK GUIDE

Load Your Audio

Drag & drop or click to upload WAV, MP3, or FLAC files. Max 100MB. The input waveform and meters will appear on the left.

Adjust Gain

Manual: Drag the center knob (-60 to +40 dB).
Auto: Click LUFS target buttons (-23, -16, -14, -9) for automatic normalization.

Apply & Preview

Click APPLY to process. Compare input/output with play buttons. Check for red peaks (>95%) or clipping warnings.

Export Result

Click EXPORT when satisfied. Choose format (WAV/MP3/FLAC), bit depth, and quality. Download starts automatically.

PRO TIPS

LUFS values: Check the Platform Reference Table for your target platform's recommended loudness.
True Peak: Keep at -1.0 dB for streaming to avoid clipping during format conversion.
Red waveform: Shows peaks >95%. If present, consider reducing gain.
DC Offset: If detected, use "Remove DC Offset" button before processing.
Crest Factor: Higher (12-20 dB) = dynamic. Lower (3-8 dB) = compressed.
A/B Compare: Use play buttons to level-match compare input vs output.

COMMON USE CASES

🎵 Music for Spotify

Target: -14 LUFS, True Peak: -1.0 dB

🎙️ Podcast

Target: -16 LUFS, True Peak: -1.0 dB

📱 Social Media (TikTok)

Target: -11 to -13 LUFS, True Peak: -1.0 dB

💿 CD Mastering

Target: -9 to -7 LUFS, watch for clipping!

GLOSSARY

PEAK: Maximum instantaneous level

RMS: Root Mean Square - average loudness

LUFS: Loudness Units Full Scale - perceived loudness standard

TRUE PEAK: Inter-sample peaks detected via 4x oversampling

CREST FACTOR: Ratio between peak and RMS (dynamic range indicator)

CLIPPING: Distortion when signal exceeds maximum level (±1.0)

DC OFFSET: Non-zero average signal value (can cause issues)