/**
 * Sun/NeXT AU reader and writer.
 *
 * The simplest audio container in common use: a 24-byte big-endian header and
 * then raw samples. Still turns up from Java's `javax.sound`, older Unix tools,
 * and telephony systems, and it costs almost nothing to support.
 */
import { type Limits } from '../limits.js';
import type { DecodedContainer, ContainerEncodeOptions } from './types.js';
export interface AuDecodeOptions {
    limits?: Partial<Limits>;
}
/** Decodes a Sun/NeXT AU file. */
export declare function decodeAu(input: Uint8Array, options?: AuDecodeOptions): DecodedContainer;
/** Encodes planar float channels as a Sun/NeXT AU file. */
export declare function encodeAu(channelData: readonly Float32Array[], sampleRate: number, options?: ContainerEncodeOptions): Uint8Array;