( window[ 'AudioContext' ] || window[ 'webkitAudioContext' ] ),
X_WebAudio_BUFFER_LIST = [],
X_WebAudio_need1stTouch = X_UA[ 'iOS' ],
( window[ 'AudioContext' ] || window[ 'webkitAudioContext' ] ),
X_WebAudio_BUFFER_LIST = [],
X_WebAudio_need1stTouch = X_UA[ 'iOS' ],