Broadcast-grade loudness, studio quality — now mobile, now with target profiles. loudness METER by pegelWERK brings the EBU R128 / ITU-R BS.1770-4 loudness engine of loudness METER PRO to your iPhone. For sound engineers, podcast producers and recording professionals who need a reliable reference on the go — no laptop, no plugin, no compromise. TARGET PROFILES (new) Pick your loudness target by profile — the meter's target line, colour zones and LU readout adapt instantly: • EBU R128 / Broadcast (−23 LUFS) • Podcast (−16 LUFS) • YouTube & streaming (−14 LUFS) • Audiobook (−18 LUFS) • USA, Japan, Australia (−24 LKFS) • Documentary and sports LOUDNESS METERING • Momentary LUFS (400 ms window) • Short-term LUFS (3 s window) • Integrated LUFS over the 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 check on location • Podcast & streaming: master to the right target • Recording: A/B comparison between sessions • Mixing: portable second reference alongside the main system WHY LOUDNESS METER • Compact, optimised for iPhone display • Lightweight, no background processes • Works immediately — no login, no account, no cloud required • One-time purchase — no subscription loudness METER is the mobile variant of the professional pegelWERK desktop application loudness METER PRO. Same DSP engine, refined UI for mobile use. pegelWERK — Pro Audio Software.