export interface RealtimeVoiceAudioLevels {
    input: number;
    output: number;
}
export interface RealtimeVoiceAudioLevelStore {
    getSnapshot: () => RealtimeVoiceAudioLevels;
    subscribe: (listener: () => void) => () => void;
    set: (levels: RealtimeVoiceAudioLevels) => void;
    reset: () => void;
}
export declare function normalizeRealtimeVoiceRms(samples: Uint8Array): number;
export declare function smoothRealtimeVoiceLevel(previous: number, next: number): number;
export declare function createRealtimeVoiceAudioLevelStore(): RealtimeVoiceAudioLevelStore;
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