It have AudioData.js file , that contains a class named "AudioData" that defines audio context , source node, analyser node,and connecction between them that are essential for extracting data from AUDIO we feed into .

Create a audio element like this #const audio = new Audio("src") , and make a instance of AudioData class by passing that audio element as arguement to constructor like this #const audiodata = new AudioData(audio).

There are two methods of AudioData class to extract realtime audio data . #time_domain()
#frequency_domain() Both returns array of size = bufferLength , which is property of AudioData class acessebile as #audiodata.bufferLength .

#call these methods in each frame audio plays using iterator . #play audio first using audio.play() to extract data.

examples

#https://endurance21.github.io/sound_visualisation