Podcast loudness LUFS studio

Measure LUFS and normalize a mono or stereo clip locally.

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Choose mono or stereo audio

Target loudness (LUFS)

Sample-peak ceiling and limits

Sample-peak ceiling (dBFS)

This is a sample-peak ceiling, not a true-peak limiter. Choose the target required by your destination. Mono or stereo, at least 0.4 seconds; up to 30 MB and 12 million decoded samples.

Loudness before and after

Preparing example…

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Updated 2026-09-20

Measure loudness before changing the level

The loudness calculation applies K-weighting and absolute and relative gates to overlapping blocks. A constant gain then moves the clip toward your chosen target. If that would exceed the sample-peak ceiling, gain stops at the ceiling and the result explains the shortfall. The saved WAV is decoded and measured again.

A worked example

Adding 6 dB of gain doubles the signal amplitude approximately. A clip measured at -22 LUFS moves toward -16 LUFS only if its sample peaks leave enough room.

Next: Audio merger

Before you use the result

Short mono/stereo clips only: at least 0.4 seconds, up to 30 MB and 12 million decoded samples. Browser decoding resamples to 48 kHz; output is 16-bit PCM WAV. This does not measure true peaks, loudness range or platform compliance. Choose the destination’s required target; -16 LUFS is an editable starting point, not a universal podcast rule. Silence and content below the absolute gate have no finite integrated result.

Next: Audio compressor

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ToolOctopus. “Podcast loudness LUFS studio.” Updated 2026-09-20. https://tooloctopus.com/podcast-loudness-lufs-studio.

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