AudioMeasurements

AudioMeasurements[audio,"prop"] computes the property "prop" for the entire audio.

AudioMeasurements[audio,{prop1,prop2,…}] computes several properties "propi".

AudioMeasurements[audio,"prop",format] returns the values in the specified output format.

AudioMeasurements[{audio1,audio2,…},…] returns measurements for all audioi.

AudioMeasurements[video,…] returns measurements for the first audio track in video.

Examples

Get the duration of an audio:

AudioMeasurements[ExampleData[{"Audio", "Violin"}], "Duration"]
(* Quantity[...] *)

Get multiple properties:

AudioMeasurements[ExampleData[{"Audio", "Violin"}], {"Duration", "RMSAmplitude"}]
(* <|"Duration" -> ..., "RMSAmplitude" -> ...|> *)

Please visit the official Wolfram Language Reference for more details.