AUDIO ENGINEERING STUDIO FLAGSHIP
Audio Loudness Meter
Professional-feeling loudness analysis for podcasts, video and broadcast. Inspect LUFS, peaks and dynamics, compare delivery targets and create clear reports. No account. No uploads.
YOUR WORKSPACE
Audio Loudness Meter
Drop your audio files here
Choose recordings, mixes or finished masters and inspect their levels.
Up to 8 files per batch · 200 MB each · Mono/stereo · Files never leave your browser
Analyzing audioPreparing…
01 / YOUR FILES
Analysis queue
Select a completed file to inspect; process multiple files sequentially.
Batch comparisonIntegrated LUFS and estimated true peak
| Audio file | Integrated | LRA | True peak est. | Status |
|---|
02 / ANALYZE
Selected recording
03 / EXPLORE
Sound over time
Loudness measured over 400 ms, sampled every 100 ms.
Preview plays locally and does not affect measurements.
04 / DELIVERY CHECK
Compare with a target
Difference to target—
Estimated peak after gain—
Current peak headroom—
Reference targets are editable starting points, not guarantees of platform compliance. No gain or limiter is applied. Estimated post-gain peak assumes uniform gain, without limiting.
05 / INSPECT
Measurement details
UNDERSTAND YOUR AUDIO
Clarity beyond a single number.
Different loudness metrics describe different things. Together they help catch level surprises before a final export.
Integrated LUFS
A K-weighted, gated average of the entire recording. Useful when comparing programme loudness with delivery targets.
True peak estimate
Oversampled reconstruction estimates inter-sample peaks that ordinary sample peak meters can miss. This is not a certified compliance reading.
Loudness range
An EBU-style dynamic range indicator based on gated 3-second loudness measurements—not the same as peak-to-RMS crest factor.
Frequently asked questions
Are these readings equivalent to a certified broadcast loudness meter?
Integrated LUFS follows the BS.1770 K-weighting/gating method and LRA follows the EBU calculation method. True peak uses an independent 4× windowed-sinc estimate. Browser decoding, channel mapping, and test tolerances can differ from certified hardware and software; use a validated meter for delivery-critical sign-off.
Why does a file have no LUFS or loudness range value?
Silence may not cross the gating thresholds, and clips shorter than 400 ms do not provide a full integration block. LRA needs sufficient 3-second measurements and dynamic variation.
Will the meter change or normalize my file?
No. The meter only analyzes decoded audio. Target comparisons show a theoretical gain difference and post-gain estimated peak, not processed audio output.
Which files can I import?
Use formats your browser can decode, such as WAV, MP3, AAC/M4A and Ogg in supported browsers. Codec support varies, and the browser may resample decoded audio. Mono and stereo are supported. Very long recordings may be limited by browser memory because decoding occurs locally.
Does PixelOkay upload or store my audio?
No. The analysis occurs inside your browser. Files and reports are kept in the current page session until you clear them or close the page. Saved reports are downloaded to your device.