import { AudioLevelMonitor } from './audio-level.js';
export interface RecordedAudio {
    readonly base64: string;
    readonly mimeType: string;
}
export declare function isMediaRecorderAvailable(): boolean;
export declare function releaseWarmedMicrophone(): void;
export declare function warmMicrophone(): void;
export declare class MediaRecorderSession {
    private readonly recorder;
    private readonly stream;
    private readonly chunks;
    private aborted;
    private closed;
    private stopPromise;
    private stopReject;
    private stopCleanup;
    private totalBytes;
    private recordingError;
    private constructor();
    static create(): Promise<MediaRecorderSession>;
    createLevelMonitor(onLevel: (level: number) => void): AudioLevelMonitor;
    start(): void;
    stop(): Promise<RecordedAudio>;
    abort(): void;
    private finish;
}
export declare function supportedMimeType(): string;