AudioLoudness

AudioLoudness[audio] computes the loudness of audio according to the EBU momentary definition.

AudioLoudness[audio, def] computes the loudness according to the definition def.

AudioLoudness[video, ...] computes the loudness of the first audio track in video.

Examples

Measure audio loudness:

audio = ExampleData[{"Audio", "Bird"}];
AudioLoudness[audio]

Please visit the official Wolfram Language Reference for more details.