最終更新:2013-03-07 (木) 20:41:26 (4061d)  

AudioParam
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AudioNodeの機能をそれぞれ個別にコントロールする

インターフェイス 

interface AudioParam {

    attribute float value;
    readonly attribute float computedValue;
    readonly attribute float minValue;
    readonly attribute float maxValue;
    readonly attribute float defaultValue;

    // Parameter automation. 
    void setValueAtTime(float value, double startTime);
    void linearRampToValueAtTime(float value, double endTime);
    void exponentialRampToValueAtTime(float value, double endTime);

    // Exponentially approach the target value with a rate having the given time constant. 
    void setTargetAtTime(float target, double startTime, double timeConstant);

    // Sets an array of arbitrary parameter values starting at time for the given duration. 
    // The number of values will be scaled to fit into the desired duration. 
    void setValueCurveAtTime(Float32Array values, double startTime, double duration);

    // Cancels all scheduled parameter changes with times greater than or equal to startTime. 
    void cancelScheduledValues(double startTime);

};



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