Related audio tools
What this loudness tool offers
- Streaming + broadcast targets — Profiles for Spotify/YouTube, Apple/podcast, EBU, and ATSC
- Integrated LUFS + dBTP + LRA — Measure core loudness metrics in one workflow
- Batch loudness checks — Analyze multiple files and compare results quickly
- Compliance indicators — Pass/check status for I, TP, and LRA
- Report export — Download JSON or CSV loudness reports
- Normalize and deliver — Two-pass workflow with MP3/WAV/FLAC output
About loudness normalization
This tool combines measurement and normalization in a practical mastering workflow. Analyze integrated loudness, true peak, and loudness range, then normalize toward a profile suitable for streaming, podcasting, or broadcast-style delivery.
Best practices
- Measure first, then normalize using two-pass mode for tighter target matching.
- Treat true peak as a delivery limit, not just a meter value.
- Use batch mode to keep albums and podcast episodes consistent.
- Export reports for client review and QC handoff.
Common use cases
- Podcast mastering — Target consistent LUFS and safe true-peak ceilings.
- Music release prep — Check level before platform normalization.
- Broadcast delivery — Validate EBU/ATSC style constraints.
- Batch QC — Screen folders of files and export compliance data.
Why use this loudness meter
It gives a complete in-browser loudness workflow: measure, normalize, verify compliance, and export reports without uploading source audio.
- Full audio normalizer — peak, RMS, and dynamics options
- Audio compressor — reduce size before loudness pass
- Audio metadata editor — finalize title and artist tags before publishing
Processing runs entirely in your browser via in-browser media engine. Your files are not uploaded to our servers.
Frequently asked questions
Why do my numbers differ slightly from another app?
Gating behavior, channel handling, analysis window, and implementation details can shift results slightly. Compare tools using the same source, same target profile, and same measured duration.
Can I normalize without re-encoding?
Level changes require processing the PCM audio; lossy formats are re-encoded on export. Use WAV or FLAC if you want lossless intermediates.
Should I always use two-pass mode?
Two-pass is best for final delivery and tighter target matching. One-pass can be faster for rough checks or early edit iterations.