sicklincoln / mmll Goto Github PK

Contributors

Stargazers

Forkers

burntout debbiest mimic-sussex datamusician frantic0 jreus bjarnig bamdada

    var onsetdetector = new MMLLOnsetDetector(44100)
 

    fetch("pianomelody.wav")
        .then((response) => {
            return response.arrayBuffer()
        })
        .then(data => {
            const context = new (window.AudioContext || window.webkitAudioContext)();
            context.decodeAudioData(data, (buffer) => {
                run(buffer.getChannelData(0))
            })
        })
    
    function run(data) {
        const CHUNK = 16
        const buffers = sliceBuffer(data, CHUNK)

        for(let i=0; i<buffers.length;i++) {
            const buffer = buffers[i]
            const detection = onsetdetector.next(buffer)
            if(detection) {
                console.log("d", i*CHUNK/44100-0.054)
            }
        }
    }