/**
 * Duplicate Detection System for React Native
 * Matches Swift version's duplicate detection logic
 */
export interface ToneDetection {
    lastDetectedTone: string;
    lastDetectionTime: number;
}
export declare class DuplicateDetector {
    private detectedTones;
    private duplicateDetectionTiming;
    constructor(duplicateDetectionTiming?: number);
    /**
     * Check if a sequence is a duplicate and add it if it's new
     * @param sequence The detected tone sequence
     * @returns true if the sequence is new (not a duplicate), false if it's a duplicate
     */
    checkAndAddSequence(sequence: string): boolean;
    /**
     * Update the duplicate detection timing window
     * @param timingMs Timing window in milliseconds
     */
    updateDuplicateDetectionTiming(timingMs: number): void;
    /**
     * Get the current duplicate detection timing
     * @returns Timing window in milliseconds
     */
    getDuplicateDetectionTiming(): number;
    /**
     * Clear all detected sequences
     */
    clear(): void;
    /**
     * Get the number of currently tracked sequences
     * @returns Number of sequences being tracked
     */
    getTrackedSequenceCount(): number;
}
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