var audioCtx = new (window.AudioContext || window.webkitAudioContext)()
var webAudioAnalyser2 = require('web-audio-analyser-2')
var analyser = webAudioAnalyser2({
context: audioCtx,
fftSize: 2048,
equalTemperedFreqBinCount: 10
})
someSourceNode.connect(analyser)
analyser.connect(someDestinationNode)
var interval = setInterval(function () {
var equalTemperedFrequencyData = analyser.equalTemperedFrequencyData(8)
console.log('equalTemperedFrequencyData.frequencies: ', equalTemperedFrequencyData.frequencies)
console.log('equalTemperedFrequencyData.overallAmplitude: ', equalTemperedFrequencyData.overallAmplitude)
var barkScaleFrequencyData = analyser.barkScaleFrequencyData()
console.log('barkScaleFrequencyData.frequencies: ', barkScaleFrequencyData.frequencies)
console.log('barkScaleFrequencyData.overallAmplitude: ', barkScaleFrequencyData.overallAmplitude)
}, 50)