New plugin

Airchain

FM radio airchain emulation — AGC, four-band squash, emphasis, clipper and transmission artifacts behind one big SQUASH knob.

VST3 / AUmacOS14 presets
Discover Airchain
support@squaresmile.de Köln, Germany

VST3 · AU · Standalone app · macOS & Windows

The verdict on your master bus. And the fix, in dB.

LoudSense sits last on the master and tells you, while you mix, what Spotify, Apple Podcasts, YouTube or the broadcaster will do with the song: on target, or lower by 2.1 dB, or put a true-peak limiter at −1 dBTP. For the whole song, for each pass, or song by song through a live set.

Buy once — no subscription, no key Audio passes through untouched, zero latency ITU-R BS.1770 / EBU R128, tested against the EBU reference signals
The LoudSense plugin window, Meter tab, delivering to Apple Podcasts: the answer line says Clipped — re-export without clipping; tiles with LUFS-I −15.4, true peak +1.8 dBTP and 3 clips; bars with the −16 LUFS window, the short-term curve with its true-peak overs marked, the loudness spread, the peak log with song positions, and per-platform verdict rows with the fix and the gain advice: a true-peak limiter at −1 dBTP.

How it works

Put it last. Pick the target. Play.

01

Last on the master

After every other plugin, with the master fader at 0 dB — so LoudSense measures what you will export.

02

Say where it goes

The first time, LoudSense asks what you deliver: podcast, music, broadcast, audiobook, live concert or surround. Change the target any time in the bar under the tabs.

03

Play or bounce

Play the song, a part of it, or bounce it offline — the host renders faster than realtime and LoudSense keeps up.

04

Read the answer

One line at the top: on target, or what to change. Below it a row for every platform of the group, each with its fix in dB, and the gain to type into the output trim.

In your DAW

A meter that answers the question you have.

The fix, not just the number

Every verdict says what to do: turn down by 1.6 dB, or use a true-peak limiter at −1 dBTP when turning down would leave the window. A clipped mix is called clipped — turning it down does not bring the cut-off peaks back.

The whole song, not one pass

Play any part, in any order: every part lands on its place in the song, and the newest pass over a part replaces the old one. The Timeline shows what is measured and how fresh it is, and it is saved with your project.

It restarts when you want it to

Stop and play on from the same spot and the reading keeps adding up; play from somewhere else and it starts fresh. Or restart on every play, or only by hand. Pause holds the numbers, and a reset can be undone for ten seconds.

Check the bounce

Drop the exported file on the Timeline and LoudSense says how it differs from what played through it — and why: the master fader, a plugin after LoudSense, dither, the MP3 or AAC encoder, or a different length.

Show mode for live sets

Start the show, press Next song between songs. Every song gets its own loudness, range and true peak against the target, the whole show runs on the clock, and the setlist saves as a CSV.

Surround and Atmos beds

5.1, 7.1, 5.1.4, 7.1.2 and 7.1.4, every channel weighted as BS.1770 says. Targets for Apple Music Dolby Atmos, Netflix (dialogue-gated) and EBU R128 5.1 are built in.

Inside

Timeline, show, panel.

The LoudSense plugin’s Timeline tab: 1:40 of 5:45 of the song measured in three stretches, the coverage bar along the song with the play head, tiles for LUFS-I −15.4, true peak +1.8 dBTP, 3 clips, 1:40 measured and 29 % coverage, the list of measured stretches with their age, and the verdict rows for the whole song so far.
The Timeline: three stretches of the song measured, the newest just now — the verdict covers everything measured so far.
The LoudSense Show tab during a live set, delivering to the live-concert stream target (−14 LUFS): the song playing now at −11.4 LUFS with +1.8 dBTP, the whole show at −15.0 LUFS, the show’s loudness on the clock with the song starts Opener, Ballad, Single and Encore, and a table with each song’s LUFS-I, range, true peak, clips and verdict — the ballad 8.4 dB too quiet, the encore clipped.
A live set against the concert stream target: the ballad sits 8.4 dB low, the encore clips — while the show is still running.
The LoudSense Panel tab with a captured pass: the waveform with peak marks, a red clip line, the loudness curve and the markers Intro end and Bed, the tiles below — peak 0.0 dBFS, true peak +1.5 dBTP, 1 clip, LUFS-I −15.9 — the format, noise floor and speech/music line, and the verdict rows.
A captured pass: waveform with clip and peak marks, the loudness curve, markers that split it into sections, and Compare across the last five passes.

Also in the box

The standalone app and the details.

Files, folders, albums

The standalone app measures files faster than realtime: drop an album and get one table, the album loudness and a CSV or HTML report with the verdict per platform. Dolby Digital files too, on macOS.

Watch folder

Point the app at your bounce folder: every new export is measured as it lands, and a bounce that misses the target raises a notification.

Captures and markers

Record a pass, or let play and stop do it for you. Drop markers while it runs or import the DAW's marker list: verse, chorus and ad read each get their own loudness and verdict.

Meters you can read

Bars and curve coloured by the target's window, peak hold, the spread of the whole run, true-peak overs marked where they happened, and an EBU +9 / +18 scale around the target if you like 0 to mean on target.

Your own targets

A station spec or a client rule: add it once, get a verdict row like any platform, and send it to the engineer as a small file. History keeps every measurement on this machine, with the trend across episodes.

Any window size

The window resizes freely; the compact view shrinks it to one strip with the answer and LUFS-S, LUFS-I and true peak for a corner of the screen.

LoudSense Plugin

€19 one-time

  • VST3, AU and standalone app for macOS 11+ (Apple Silicon and Intel)
  • VST3 and standalone app for Windows 10 / 11 (64-bit)
  • Free updates — no subscription, no licence key, no online check
  • Same measurement core as the free browser tool

The installers are not signed with a developer certificate yet: macOS and Windows ask once on the first launch, and the install notes show the step that clears it. No AAX, so not for Pro Tools. Read the plugin guide before you buy.

FAQ

Quick answers.

Which formats and systems?

macOS 11 or later: VST3, AU and a standalone app, one universal build for Apple Silicon and Intel. Windows 10 and 11 (64-bit): VST3 and the standalone app. It runs in any host that loads VST3 or AU plugins — Logic Pro, Ableton Live, Cubase, Nuendo, Studio One, Bitwig and the like. There is no AAX version, so not in Pro Tools.

Does it change my audio or add latency?

No. LoudSense passes the audio through untouched and reports zero latency. The measuring runs on its own thread, never on the audio thread.

How is it different from the free browser version?

The browser version checks finished files. The plugin measures while you mix: live on the master bus, along the song as you play it, captures of each pass, a live set song by song, and surround beds. The standalone app adds file batches, a watch folder for bounces and album reports. Both use the same measurement core and read the same numbers for the same audio.

Why do my numbers change when I press play again?

They do only if you want them to. By default the run restarts when playback starts somewhere else, and keeps adding up when you stop and play on from the same spot. You can also restart on every play, or only by hand, and pause the run. A reset can be undone for ten seconds.

Does it measure surround and Dolby Atmos?

It measures channel beds up to 7.1.4: 5.1, 7.1, 5.1.4, 7.1.2 and 7.1.4, each channel weighted as ITU-R BS.1770 says (surrounds weighted up, the LFE left out). For Atmos that means the bed, the renderer's re-render routed back into your DAW, or the stereo fold-down — a plugin never sees the Atmos objects themselves. Targets for Apple Music Dolby Atmos, Netflix and EBU R128 5.1 are built in. The standalone app reads 5.1 WAV files and, on macOS, Dolby Digital and Dolby Digital Plus files.

Is there a licence key or an online check?

No. You buy it once on Gumroad and download the installers; there is no key, no dongle and no internet check. Updates are free for buyers.

macOS or Windows warns me on first launch — why?

The builds are not signed with an Apple or Microsoft developer certificate yet. macOS asks once on the first launch and Windows SmartScreen asks once; the install notes in the download show the one step that clears it.

Is anything uploaded?

No. Everything is measured on your computer. History, your own targets and settings stay in a folder on this machine.

Ready when you are

Know before the platform does.

LoudSense on the master bus: the verdict per platform and the fix in dB, while you mix. €19, once.

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