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Audio Loudness Detector (LUFS)

Upload your audio ad to check if it's not too loud.

Collect 11+ data points and validate against IAB ad guidelines

HTML5 Zip
Ad Tag
VAST
Video
Image
Audio
 
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Drop your audio file here
Format: MP3, WAV
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API Docs
Go ahead, try
it yourself !

Audio Loudness (LUFS)

Loudness Units Full Scale (LUFS) is a standard measure of perceived audio loudness. Ensuring loudness consistency is critical for user experience across different platforms and ads. It's measured in LUFS, where -24 is a commonly accepted value.

Why do we test it?

Excessive loudness can irritate users, while audio that is too quiet may go unnoticed. The loudness test ensures that the ad's audio stays within acceptable loudness levels, preventing potential rejection from ad networks that enforce loudness standards. This helps to maintain consistency, ensuring your ad sounds professional and isn't disruptive to users.