/**
 * Load example audio file from remote source
 * @param {string} key - Example identifier from AUDIO_REGISTRY
 * @param {boolean} hq - Load high quality version (default: false)
 * @param {string} baseUrl - Base URL for audio files
 * @returns {Promise<ArrayBuffer>} Audio data as ArrayBuffer
 */
export function example(key: string, hq?: boolean, baseUrl?: string): Promise<ArrayBuffer>;
/**
 * Load and decode audio example to AudioBuffer
 * @param {string} key - Example identifier
 * @param {boolean} hq - Load high quality version
 * @param {AudioContext} audioContext - Web Audio API context
 * @param {string} baseUrl - Base URL for audio files
 * @returns {Promise<AudioBuffer>} Decoded AudioBuffer
 */
export function exampleBuffer(key: string, hq?: boolean, audioContext?: AudioContext, baseUrl?: string): Promise<AudioBuffer>;
/**
 * Get audio data as Float32Array from AudioBuffer
 * @param {string} key - Example identifier
 * @param {boolean} hq - Load high quality version
 * @param {number} channel - Channel to extract (default: 0)
 * @param {AudioContext} audioContext - Web Audio API context
 * @returns {Promise<Float32Array>} Audio samples
 */
export function exampleAudio(key: string, hq?: boolean, channel?: number, audioContext?: AudioContext): Promise<Float32Array>;
/**
 * List all available audio examples
 * @returns {Array<Object>} List of available examples with metadata
 */
export function listExamples(): Array<any>;
/**
 * Get metadata for a specific example
 * @param {string} key - Example identifier
 * @returns {Object} Example metadata
 */
export function exampleInfo(key: string): any;
/**
 * Load local audio file from user input
 * @param {File} file - File object from input element
 * @param {AudioContext} audioContext - Web Audio API context
 * @returns {Promise<AudioBuffer>} Decoded AudioBuffer
 */
export function loadFile(file: File, audioContext?: AudioContext): Promise<AudioBuffer>;
/**
 * Save audio data as downloadable file
 *
 * Tier-2 proof-of-work repair (2026-07-02): the private _encodeWAV here was
 * one of the three divergent encoders that src/io/wav.js explicitly replaced;
 * saveAudio now delegates to io/wav.encodeWav and returns the Blob so callers
 * can verify the roundtrip (proof: examples/web/file-io.html).
 *
 * @param {Float32Array} audioData - Audio samples (mono)
 * @param {number} sampleRate - Sample rate
 * @param {string} filename - Output filename
 * @param {string} format - Audio format ('wav', 'ogg')
 * @returns {Blob} The encoded WAV Blob (also offered as a download)
 */
export function saveAudio(audioData: Float32Array, sampleRate: number, filename?: string, format?: string): Blob;
/**
 * Get cache management interface
 * @returns {Object} Cache management functions
 */
export function cache(): any;
/**
 * Create audio visualization data
 *
 * Tier-2 proof-of-work repair (2026-07-02): sampleRate was hard-coded to
 * 22050 in the return value regardless of the actual audio; it is now an
 * explicit parameter.
 *
 * @param {Float32Array} audioData - Audio samples
 * @param {number} points - Number of visualization points
 * @param {number} sampleRate - Sample rate of audioData (default: 22050)
 * @returns {Object} Visualization data
 */
export function createVisualization(audioData: Float32Array, points?: number, sampleRate?: number): any;
/**
 * Utility function to check if Web Audio API is available
 *
 * Coverage close-out repair (2026-07-02): guarded the bare `window` read —
 * an environment-detection predicate must ANSWER the question in Node and
 * workers (false), not crash with a ReferenceError.
 * @returns {boolean} True if Web Audio API is supported
 */
export function isWebAudioSupported(): boolean;
/**
 * Create a new Web Audio API context with proper configuration
 * @param {Object} options - AudioContext options
 * @returns {AudioContext} Configured AudioContext
 */
export function createAudioContext(options?: any): AudioContext;