import { type AudioConfig, type AudioDataCallback, type AudioErrorCallback } from "./types";
export declare class AudioManager {
    private mediaRecorder;
    private mediaStream;
    private recordingStartTime;
    private autoPauseTimer;
    private config;
    private onAudioData;
    private onAudioError;
    private suppressCallbacks;
    constructor(config?: Partial<AudioConfig>);
    private checkCurrentPermissionState;
    start(onAudioData: AudioDataCallback, onAudioError?: AudioErrorCallback): Promise<void>;
    private processAudioChunk;
    private toRecordingError;
    private handleError;
    /**
     * Set up auto-pause timer for 15-minute limit
     */
    private setupAutoPauseTimer;
    private setupMediaRecorderEvents;
    /**
     * Convert blob to base64 string
     */
    private blobToBase64;
    /**
     * Stop recording manually
     */
    stop(): void;
    /**
     * Cancel recording (discard data and suppress callbacks)
     */
    cancel(): void;
    destroy(): void;
}