timbre.js - ドラック＆ドロップ逆再生する

README.md

demo page http://thisis.herokuapp.com/reverse/

reverse.coffee

"use strict"

jQuery ->
    # timbre.js - T("buffer") オブジェクトを使う
    synth = T("buffer").set(loop:true, reversed:true).play()

    # Chrome / Safari6 でないと動きません
    ctx  = new webkitAudioContext()

    $body = $ document.body
    
    $body.on "dragover", (e)->
        e.preventDefault()
        e.stopPropagation()

    $body.on "drop", (e)->
        e.preventDefault()
        e.stopPropagation()
        
        reader = new FileReader()
        reader.onload = (e)->
            buffer = ctx.createBuffer(e.target.result, true).getChannelData 0
            synth.buffer = buffer
        reader.readAsArrayBuffer e.originalEvent.dataTransfer.files[0]