loudness CORRECT · Normalizer vs Burnish

loudness CORRECT measures, corrects and verifies your audio to any broadcast or streaming loudness spec — fully offline, on iPad and iPhone. Pick a file, pick a preset, correct. The two-pass pipeline measures the source to ITU-R BS.1770-4, plans the gain move, writes a new file and re-verifies the result — so what leaves the app is provably on target, not just close. WHY IT'S DIFFERENT • Verified output: auto-verify and refine until the residual error is under 0.1 LU. No guessing, no manual re-check. • Transparent loudness range control: a continuous 3-band reshape (Linkwitz-Riley) works toward the programme level — it tightens loud passages and lifts quiet ones with no threshold and no pumping. • True-peak safe: 4× oversampled inter-sample peak limiter with 5 ms look-ahead keeps you under the ceiling on every platform. 14 DELIVERY PRESETS EBU R128, EBU R128 S1, ATSC A/85, ARIB TR-B32, AGCOM 219/09, FreeTV OP-59, DPP UK, Portaria 354, OTT -27 LUFS, Apple Podcasts, Spotify, Amazon Music, YouTube, and a fully editable Custom preset. MULTICHANNEL From mono and stereo through 5.1 and 7.1 up to 9.1.6 Atmos bed layouts — BS.1770-correct per layout, with LFE exclude and proper surround weighting. FORMATS Input: WAV, AIFF, FLAC, OGG, MP3, M4A Output: WAV, AIFF, FLAC • K-weighted ITU-R BS.1770-4 measurement (integrated, range, true peak) • Dark, focused UI — German and English • No account, no login, no network calls — your files never leave your device MADE FOR Mastering engineers, broadcast and post editors, podcast and audiobook producers, sound designers — everyone who has to hit a delivery loudness target quickly, cleanly and provably.

Burnish takes a song you made with an AI music tool and makes it sound finished. AI generators leave marks. The top end stops dead around 16 kHz. There is a haze in the mids and a lump of mud around 350 Hz. The stereo image is narrow. You can hear it on good headphones, and so can the people who decide what gets playlisted. Burnish finds those problems, fixes them, then masters the track to streaming loudness. All of it happens on your iPhone or iPad. No upload, no account, no waiting in a queue. WHAT YOU GET Repair first, then master. Burnish rebuilds the missing top end, clears the mud, and opens the stereo image before it touches loudness. Most mastering apps skip this part. Six dials. Intensity, tone, bass, width, dynamics, de-ess. Turn one and Burnish runs the full chain again in seconds. Free, as many times as you like. Reference match. Pick a song from Files. Burnish reads its tone and loudness and shapes your track to sit beside it. A fair A/B. Before and After play at the same loudness, so you judge the tone and not the volume. It shows its work. Every EQ move, every dB of compression, the limiter's numbers. You can read exactly what changed and why. No black box. Loudness targets that mean something. Streaming, YouTube, Dynamic, or Club. True peak held at -1 dBTP so nothing clips after upload. 18 genre profiles. R&B, hip-hop, pop, rock, house, techno, drum and bass, reggaeton, country, metal, ambient, jazz, classical and more. Each one tuned by ear, not by a preset name. Share the before and after. A 15 second vertical video with the spectrum, the score, and the numbers. Made for Reels, Shorts and TikTok. Also a plugin. Burnish runs as an AUv3 effect inside GarageBand, Logic Pro for iPad and other AUv3 hosts, so you can hear the master while you arrange. Export a 24-bit WAV, ready for any distributor. HOW IT IS PRICED Your first master is free, no card, no sign-up. After that, one purchase unlocks the app for good. No subscription. No monthly fee. No credits. PRIVACY Your music never leaves your device. Burnish does not upload audio, does not train on your songs, and does not need an account. Burnish is made by a musician who got tired of paying a subscription to master songs that still sounded like demos. It works on any track, AI-made or not.