/**
 * Create a loopable AudioBuffer with custom waveform, multichannel support, and export options.
 *
 * @param {Object} options - Options for buffer creation.
 * @param {number} options.loopLengthSeconds - Length of each loop in seconds.
 * @param {number} options.sampleRate - Sample rate of the buffer (default: 44100).
 * @param {function} options.waveformFn - Function to generate waveform values (default: 440Hz sine wave).
 * @param {number} options.channels - Number of audio channels (default: 1).
 * @param {boolean} options.loopable - Whether to set loop points for seamless looping (default: false).
 * @param {number} options.repeats - Number of times to repeat the loop.
 * @returns {AudioBuffer | {buffer: AudioBuffer, loopStart: number, loopEnd: number}} - The generated AudioBuffer or an object with buffer and loop points if loopable.
 */
export function createLoopBuffer({ loopLengthSeconds, repeats, sampleRate, waveformFn, channels, loopable, }: {
    loopLengthSeconds: number;
    sampleRate: number;
    waveformFn: Function;
    channels: number;
    loopable: boolean;
    repeats: number;
}): AudioBuffer | {
    buffer: AudioBuffer;
    loopStart: number;
    loopEnd: number;
};
/**
 * Export an AudioBuffer as a .wav file.
 *
 * @param {AudioBuffer} buffer - The AudioBuffer to export.
 * @returns {Blob} - A Blob representing the .wav file.
 */
export function exportBufferAsWav(buffer: AudioBuffer): Blob;
/**
 * Compute the Root Mean Square (RMS) energy of an audio buffer.
 *
 * @param {AudioBuffer} audioBuffer - The AudioBuffer to analyze.
 * @returns {number} - The RMS energy value.
 */
export function computeRMS(audioBuffer: AudioBuffer): number;
/**
 * Define multiple loop points for playback.
 *
 * @param {AudioBuffer} buffer - The AudioBuffer to use.
 * @param {number} loopLengthSeconds - Length of each loop in seconds.
 * @param {number} repeats - Number of loops to define.
 * @returns {Array<{loopStart: number, loopEnd: number}>} - Array of loop points.
 */
export function defineMultipleLoopPoints(buffer: AudioBuffer, loopLengthSeconds: number, repeats: number): Array<{
    loopStart: number;
    loopEnd: number;
}>;
export function computePeak(audioBuffer: any): number;
export function computeZeroCrossingRate(audioBuffer: any): number;
export function reverseBufferSection(buffer: any, start: any, end: any): any;
export function findZeroCrossing(data: any, startIndex: any): any;
export function findAllZeroCrossings(data: any, start?: number): number[];
export function findAudioStart(channelData: any, sampleRate: any, threshold?: number): any;
export function applyHannWindow(audioData: any): Float32Array<any>;