import type { LogLevel } from './log-level';
import type { CancelSignal } from './make-cancel-signal';
import type { AudioCodec } from './options/audio-codec';
export declare const durationOf1Frame: number;
export declare const getClosestAlignedTime: (targetTime: number) => number;
export declare const createCombinedAudio: ({ seamless, filelistDir, files, indent, logLevel, audioBitrate, resolvedAudioCodec, output, chunkDurationInSeconds, addRemotionMetadata, binariesDirectory, fps, cancelSignal, onProgress, }: {
    seamless: boolean;
    filelistDir: string;
    files: string[];
    indent: boolean;
    logLevel: LogLevel;
    audioBitrate: string | null;
    resolvedAudioCodec: AudioCodec;
    output: string;
    chunkDurationInSeconds: number;
    addRemotionMetadata: boolean;
    binariesDirectory: string | null;
    fps: number;
    cancelSignal: CancelSignal | undefined;
    onProgress: (frames: number) => void;
}) => Promise<string>;