export declare class Bleep {
    private _gain?;
    private _frequency?;
    private _startPadding?;
    private _stopPadding?;
    getGain(): number | undefined;
    setGain(gain: number): void;
    getFrequency(): number | undefined;
    setFrequency(frequency: number): void;
    getStartPadding(): number | undefined;
    setStartPadding(startPadding: number): void;
    getStopPadding(): number | undefined;
    setStopPadding(stopPadding: number): void;
}