How do I analyze audio loudness in LUFS and True Peak?

Upload your audio file into the Loudness Analyzer. The engine computes Integrated Loudness (LUFS), Short-term Loudness, Loudness Range (LRA), and True Peak (dBTP) compliant with ITU-R BS.1770 / EBU R128.

What is the difference between LUFS and Peak dB?

Peak dB measures instantaneous electrical voltage, whereas LUFS measures perceived human loudness over time, matching streaming platform standards.

What are the loudness standards for Spotify, Apple Music, and YouTube?

Spotify targets -14 LUFS, Apple Music targets -16 LUFS, YouTube targets -14 LUFS, and broadcast TV targets -23 LUFS (EBU) or -24 LUFS (ATSC).

Can I detect inter-sample True Peak clipping?

Yes. The analyzer calculates oversampled True Peak levels to prevent analog DAC distortion.

Can I copy loudness test reports?

Yes. Copy complete technical loudness summaries for mastering documentation.

Is analysis performed in browser?

Yes. Web Audio API decodes and analyzes samples locally.

NexLove Media

Audio Loudness Analyzer — RMS & Peak Meter

Analyze audio tracks for Peak amplitude dB, RMS loudness, dynamic range, and clipping warnings. Verify mastering levels for Spotify, Apple Music, and YouTube.

TL;DR: Audio Loudness Analyzer — RMS & Peak Meter is a 100% free browser-based media utility. Instant audio mastering and loudness analyzer measuring Peak dB, RMS dB, and dynamic range.

Drag & drop your audio file here

or click to browse from your device

Or press Ctrl + V to paste

MP3 WAV OGG M4A FLAC Up to 100MB

100% local browser processing — this file never leaves your device

Understanding Audio Loudness Analyzer — RMS & Peak Meter

Analyze audio tracks for Peak amplitude dB, RMS loudness, dynamic range, and clipping warnings. Verify mastering levels for Spotify, Apple Music, and YouTube. Designed for creators, video editors, audio engineers, web designers, and developers who need instant, high-precision processing without software installation, watermarks, or file uploads.

Mathematical Formula & Technical Methodology

\text{Dynamic Range (dB)} = \text{Peak (dB)} - \text{RMS (dB)}

Formula Variables Explained:
Calculates the dynamic headroom difference between maximum digital peak and average energy.

Step-by-Step Worked Example

Peak -0.5 dB and RMS -14.0 dB provides 13.5 dB of punchy commercial dynamic range.

100% Client-Side Privacy Guarantee

All media decoding, manipulation, calculations, and encoding execute locally inside your web browser using HTML5 Canvas, Web Audio API, WebCodecs, Web Crypto, and modern JavaScript engines. Zero server uploads, zero telemetry, and no registration required.

Frequently Asked Questions

: Upload your audio file into the Loudness Analyzer. The engine computes Integrated Loudness (LUFS), Short-term Loudness, Loudness Range (LRA), and True Peak (dBTP) compliant with ITU-R BS.1770 / EBU R128.
: Peak dB measures instantaneous electrical voltage, whereas LUFS measures perceived human loudness over time, matching streaming platform standards.
: Spotify targets -14 LUFS, Apple Music targets -16 LUFS, YouTube targets -14 LUFS, and broadcast TV targets -23 LUFS (EBU) or -24 LUFS (ATSC).
: Yes. The analyzer calculates oversampled True Peak levels to prevent analog DAC distortion.
: Yes. Copy complete technical loudness summaries for mastering documentation.
: Yes. Web Audio API decodes and analyzes samples locally.

Embed This Tool

Add the live Audio Loudness Analyzer — RMS & Peak Meter to your own website with this embed code:

<iframe src="https://nexlove.org/embed/audio-loudness-analyzer.html" width="100%" height="650" style="border:1px solid #e2e8f0;border-radius:12px" title="Audio Loudness Analyzer — RMS & Peak Meter — NexLove" loading="lazy"></iframe>

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