What is LUFS in audio engineering?

LUFS stands for Loudness Units relative to Full Scale. Unlike peak meters that measure instant spikes, LUFS measures perceived human ear loudness integrated over time.

Why is Apple Podcasts -16 LUFS while Spotify is -14 LUFS?

Apple Podcasts adopted -16 LUFS (aligned with the AES TD1004 recommendation for spoken word). Spotify, YouTube, and Amazon Music standardized at -14 LUFS to accommodate dynamic music productions.

What happens if my YouTube video is louder than -14 LUFS?

YouTube inspects incoming audio. If your video measures -10 LUFS, YouTube's player will automatically turn your audio down by 4 dB ('Volume normalized 60%'). It will not sound louder, but may lose dynamic impact.

What is a True Peak inter-sample clip?

When digital audio converts to analog through headphones or phone speakers, waveform interpolation can exceed 0 dBFS between digital samples, causing harsh audible distortion. Keeping peaks below -1.0 dBTP prevents this.

Can I use a limiter to hit -14 LUFS?

Yes, use a transparent brickwall limiter on your master bus with the ceiling set to -1.0 dBTP and adjust limiter threshold until integrated LUFS hits your target.

Creators & Video100% Client-Side Local Execution•Updated 2026

Podcast & Streaming Audio Loudness Normalization (LUFS) Calculator

Name: Podcast & Streaming Audio Loudness (LUFS) Calculator
Author: AnshuTechy

Measure integrated loudness and true peak levels against Spotify, YouTube, Apple Podcasts, and broadcast compliance standards.Documentation & FAQs ↓

Podcast & Streaming Audio Loudness (LUFS) Calculator — Interactive Console

Runs locally in your browser • Instant output

Measured Integrated LUFS

Measured Max True Peak (dBTP)

Target Platform Standard

Required Master Gain Adjustment+4.5 dBAdjust your DAW master fader or limiter threshold by this amount

Projected Normalized True Peak+3.3 dBTP High Risk of Inter-Sample Distortion!

Step-by-Step Instructions

4 Steps to Completion

1Phase 1

Enter your DAW or audio meter's Integrated Loudness reading (in LUFS, e.g. -18.5 LUFS).

2Phase 2

Enter your measured Maximum True Peak level (in dBTP, e.g. -0.5 dBTP).

3Phase 3

Select your destination platform (Spotify, YouTube, Apple Podcasts, or European Broadcast).

4Phase 4

Review the required dB gain shift and True Peak safety check.

Practical Use Cases & Real-World Scenarios

Mastering Podcast Episodes

Ensure conversational audio is loud enough for car commuters without distortion.

YouTube Video Audio Leveling

Avoid YouTube's automatic 'Volume normalization' penalty by mastering cleanly to -14 LUFS.

Voiceover Deliverables

Check client voiceover files against strict -16 LUFS / -1.0 dBTP audio specifications.

Podcast & Streaming Audio Loudness Normalization (LUFS) Calculator

Step-by-Step Instructions

Practical Use Cases & Real-World Scenarios

Streaming Platform Presets

Gain Adjustment Computation

True Peak Clipping Safeguard

Compression Penalty Warning

Frequently Asked Questions

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