export interface UseAudioLevelBarsValue {
    barRefs: React.MutableRefObject<(HTMLSpanElement | null)[]>;
    isTalking: boolean;
}
export interface UseAudioLevelBarsOptions {
    barCount: number;
    idleHeightPx: number;
    maxGrowthPx: number;
    noiseGate: number;
}
export declare function useAudioLevelBars(mediaStreamTrack: MediaStreamTrack | undefined, { barCount, idleHeightPx, maxGrowthPx, noiseGate }: UseAudioLevelBarsOptions): UseAudioLevelBarsValue;