What is the best way to calculate the duration of a .wav file stored locally using JavaScript?

Can you help me figure out how to determine the duration (in milliseconds) of a .wav file using JavaScript for a GreaseMonkey Script?

The main challenges I'm encountering are: 1) Accessing local files 2) Retrieving the length of the wav file

Answer №1

If you're looking to accomplish this task effortlessly, consider utilizing the jssound module from the jslibs package.

 LoadModule('jsstd');
 LoadModule('jsio');
 LoadModule('jssound');

 var audioFile = new File('exampleSound.wav');
 audioFile.Open('r');
 var decodedAudio = DecodeSound(audioFile);
 audioFile.Close();
 Print('Length of sample: '+decodedAudio.length, '\n');

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