#import #import #import // https://webaudio.github.io/web-audio-api/#ConstantSourceOptions dictionary ConstantSourceOptions { float offset = 1; }; // https://webaudio.github.io/web-audio-api/#ConstantSourceNode [Exposed=Window] interface ConstantSourceNode : AudioScheduledSourceNode { constructor (BaseAudioContext context, optional ConstantSourceOptions options = {}); readonly attribute AudioParam offset; };