AudioQC

Audio quality control.
For macOS.

11 tools for loudness, stems, loops, conversion and delivery.

€39 one-time · No subscription · 14-day free trial

Download free trial Buy — €39

macOS 13 or later · Apple Silicon · or try the free browser tools

Only in the Mac app

1 / 2
Loudness Report — every deliverable against Spotify, Apple Music, YouTube and podcast targets, true peak 4× oversampled.
Loop Tester — hear every join sample-accurately. Click a join to play two seconds either side.
Stem Checker — stems against the master: flags different lengths, sample rates, channels, bit depths and empty files, and whether they null. Then listen: master, stems or the difference, with solo and mute.

Browser tools

Full privacy. Nothing leaves your machine.

01
Loudness Report
Analyse integrated LUFS, true peak and dynamic range. Checks Spotify, Apple Music, YouTube and podcast targets instantly.
LUFSTrue PeakBS.1770
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02
Batch Convert
Convert audio and video files to WAV, MP3, µ-law and A-law. Resample, change bit depth, mono/stereo. Batch download as zip.
WAVMP3G.711Video
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03
Soundboard
Drop files, trigger sounds, adjust volume. Test how your audio works together. Keyboard shortcuts included.
UI AudioGame DevUX
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04
Batch Metadata
Stamp artist, copyright, year, URL and more onto hundreds of files at once. WAV, MP3 and AIFF. Fill in once, deliver professionally.
ID3RIFF INFODelivery
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05
Silence Trimmer
Auto-strip leading and trailing silence from batch files. Set threshold, padding and trim mode. Shows exactly how much time and space was saved per file.
BatchSFXCleanup
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06
Loudness Normaliser
Analyse and gain-adjust files to hit a target LUFS. Presets for Spotify, Apple, YouTube, Podcast and EBU R128. Peak-safe: respects a true peak ceiling by reducing gain — no limiting or compression.
LUFSBS.1770True Peak
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07 ⬡ AudioQC — desktop
Loop Tester
Line up loops on a timeline and hear every join sample-accurately. Click a join to hear two seconds either side, loop the whole arrangement, zoom in on the seams.
GaplessJoinsLoops
08 ⬡ AudioQC — desktop
Audio Inspector
Drop folders to instantly see sample rate, bit depth, channels, duration, bitrate and file size — grouped by folder. Sort and export to CSV.
MetadataQACSV
09 ⬡ AudioQC — desktop
Audio Pipeline
Chain multiple processes in one pass — trim silence, fade, normalise to LUFS, stamp metadata. Drop entire folder structures and process everything in seconds.
ChainBatchWAV
10 ⬡ AudioQC — desktop
Stem Checker
Stems against the master: flags different lengths, sample rates, channels, bit depths and empty files, and tells you if they null. Then listen to master, sum of stems or the difference — solo and mute while it plays.
StemsOffsetDelivery
11 ⬡ AudioQC — desktop
Batch Fade
Apply fade in and fade out to hundreds of files at once. Drop entire folders and keep the structure intact. Linear, exponential, logarithmic or S-curve.
BatchWAV0–20ms

About

Why this exists
01
Creative work is for creatives
The computer should do the boring work — not the other way around. AudioQC automates the delivery chores that eat afternoons: loudness checks, format conversion, metadata, silence trimming. Nobody got into audio to fill in metadata fields.
02
Nothing leaves your machine
Everything runs in your browser or locally on your Mac. No uploads, no API calls, no cloud. We don't even have a server to send it to.
03
No friction
No account. No subscription. No file limits. Browser tools: open, work, close the tab. Mac app: try every tool free for 14 days, then pay once.
04
Measured to spec
Loudness per ITU-R BS.1770-4, true peak with 4× oversampling, loudness range per EBU R128. The numbers you see here are the numbers a broadcast QC check will read — cross-check against any meter.
Available now
AudioQC
for Mac
The web tools use the Web Audio API — which is great, but has real limitations. The desktop app uses FFmpeg under the hood. No format restrictions, no bit depth compromises, no browser quirks.
⚡ Old school. Buy once, own forever. No subscription.
  • → 11 tools — stem checker, loop tester, batch fade, audio pipeline and more
  • → Bit depth, sample rate and bitrate preserved — 16/24/32-bit float
  • → Full format support — WAV, AIFF, FLAC, MP3, OGG, OPUS, M4A and more
  • → Broadcast WAV safe — timecode, iXML and markers kept intact
  • → Clean output — no metadata watermark
  • → Works offline — no internet needed
AudioQC for Mac
€39 one-time
  • ✓ 14-day free trial, every tool
  • ✓ One license, two Macs
  • ✓ Notarized by Apple
  • ✓ macOS 13 or later · Apple Silicon (M1 or newer)
Download free trial Buy a license — €39
Questions? hello@audioqc.app

Questions

Before you buy
What loudness should I deliver for Spotify, Apple Music, YouTube and podcasts?

Common reference targets: Spotify −14 LUFS, Apple Music −16 LUFS, YouTube −14 LUFS, podcasts −16 to −19 LUFS, with true peak at or below −1 dBTP. Platforms normalise playback themselves, so treat these as guides and check the client's spec. The Loudness Report checks a whole batch against them at once.

Does AudioQC keep Broadcast WAV timecode and iXML?

Yes. Fades, trims, normalisation, the pipeline and WAV-to-WAV conversion keep the bext chunk (timecode, UMID, originator), iXML and cue markers. When silence is trimmed from the start, timecode and markers move with the audio.

Does it change bit depth or quality?

No. Processing keeps the source's codec, bit depth and sample rate. Lossy files are re-encoded at their original bitrate when needed; trimming lossy files avoids re-encoding entirely.

Is my audio uploaded anywhere?

No. The Mac app and the browser tools process files locally — audio never leaves your machine. The app needs the internet only to activate and to re-check the license now and then.

Which Macs does it run on?

macOS 13 or later on Apple Silicon (M1 or newer). Intel Macs are not supported. The app is signed and notarized by Apple, and one license works on two Macs.

Next

In development
Click Finder
Find clicks, dropouts and edit cuts, ranked by how audible they are — click any result to hear it in context. Free update for 1.x owners.
in development