Source/WebCore/Modules/webaudio/AudioParam.idl

/*
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[
    Conditional=WEB_AUDIO,
    EnabledBySetting=WebAudioEnabled,
    Exposed=Window
] interface AudioParam {
    [ImplementedAs=valueForBindings] attribute float value;

    attribute AutomationRate automationRate;

    readonly attribute float defaultValue;
    readonly attribute float minValue;
    readonly attribute float maxValue;

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

    // Exponentially approach the target with a rate having the given time constant.
    AudioParam setTargetAtTime(float target, double startTime, float 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.
    AudioParam setValueCurveAtTime(sequence<float> values, double startTime, double duration);

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