broadcast METER: LUFS Loudness

Now free. Broadcast-grade loudness metering to EBU R128 ITU-R BS.1770: LUFS, True Peak, LRA & real-time spectrum. The mobile companion to broadcast METER PRO.

Broadcast-grade loudness metering — now in your pocket.

mini METER puts the EBU R128 / ITU-R BS.1770-4 loudness engine of broadcast METER onto your iPhone. Built for broadcast engineers, podcast producers and recording professionals who need a reliable reference on the go — without a laptop, without a plug-in, without compromise.

LOUDNESS METERING • Momentary LUFS (400 ms window) • Short-term LUFS (3 s window) • Integrated LUFS (full measurement) • Loudness Range (LRA) per EBU Tech 3342 • True Peak per ITU-R BS.1770-4 with 4× oversampling

SPECTRUM ANALYSIS • Real-time FFT from 20 Hz to 20 kHz • Professional reference resolution • Switchable between loudness and spectrum view

PROFESSIONAL USE • Broadcast: quick level checks on location • Podcast: mastering reference between studio sessions • Recording: A/B comparison between takes • Mixing: mobile secondary reference alongside your main setup

WHY MINI METER • Compact UI optimised for the iPhone display • Lightweight (5 MB), no background processes • Free — no ads! mini METER is the mobile companion to broadcast METER, our professional Mac/Windows application. Identical DSP engine, streamlined UI for mobile use.