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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,minimum-scale=1.0,user-scalable=yes" /> | |
| </head> | |
| <body> | |
| <div id="Message"></div> | |
| <script> | |
| document.addEventListener("DOMContentLoaded", function() { | |
| var tMessage = document.getElementById('Message'); | |
| var AudioContext = window.AudioContext || window.webkitAudioContext; | |
| if (!AudioContext) { | |
| tMessage.innerHTML = 'Web Audio API is not supported.'; | |
| return; | |
| } | |
| var tContext = new AudioContext(); | |
| var tBGM; | |
| var tXHR = new XMLHttpRequest(); | |
| tXHR.open('GET', 'bgm.mp3'); | |
| tXHR.responseType = 'arraybuffer'; | |
| tXHR.onreadystatechange = function() { | |
| if (tXHR.readyState === 4 && tXHR.status === 200) { | |
| tContext.decodeAudioData( | |
| tXHR.response, | |
| function (pAudioBuffer) { | |
| tMessage.innerHTML += 'BGM loaded.'; | |
| tBGM = tContext.createBufferSource(); | |
| tBGM.buffer = pAudioBuffer; | |
| tBGM.connect(tContext.destination); | |
| if (tBGM.start) { | |
| tBGM.start(0, 5.5); | |
| } else { | |
| tBGM.noteGrainOn(0, 5.5, pAudioBuffer.duration); | |
| } | |
| }, | |
| function () { | |
| tMessage.innerHTML += 'Failed to load BGM.'; | |
| } | |
| ); | |
| } | |
| }; | |
| tXHR.send(); | |
| }, false); | |
| </script> | |
| </body> | |
| </html> |
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