@pompeii-labs/audio/dist/index.d.ts

The Audio SDK from Pompeii Labs

import { P as PCMData, A as AudioFormat$1 } from './index-o4B-ThOL.js';
export { a as AudioEncoding } from './index-o4B-ThOL.js';

/**
 * Decodes a WAV audio file from raw bytes into PCM (Pulse-Code Modulation) data.
 * WAV files consist of a header followed by chunks of data. The main chunks are:
 * - 'RIFF' chunk: Contains the file identifier and size
 * - 'fmt ' chunk: Contains format information (sample rate, channels, etc.)
 * - 'data' chunk: Contains the actual audio samples
 *
 * @param bytes - Raw bytes of the WAV file as a Uint8Array
 * @returns PCMData object containing decoded audio data, or null if the file is not a valid WAV
 */
declare function decodeWAV(bytes: Uint8Array): PCMData | null;
interface PCMFormat {
    bitDepth: 8 | 16 | 24 | 32;
    signed: boolean;
    littleEndian: boolean;
    float: boolean;
}

declare function mulawToPcm16(mulawData: Buffer): Int16Array;

declare function pcm16ToMulaw(pcmData: Int16Array): Uint8Array;

declare function bufferToInt16Array(buffer: Buffer): Int16Array;

declare function encodePcm(audio: Int16Array, encoding: AudioFormat$1['encoding']): Buffer;
declare function decodeToPcm(audio: Buffer, encoding: AudioFormat$1['encoding']): Int16Array;

interface AudioFormat {
    format: string;
    mimeType: string;
    description: string;
}
declare function identifyAudioFormat(bytes: Uint8Array): AudioFormat | null;

declare function generateFadeOutSamples(lastSampleValue: number, fadeDurationMs: number, sampleRate: number): Uint8Array;

declare function int16ArrayToBuffer(int16Array: Int16Array): Buffer;

declare function resamplePcm(pcm: Int16Array, originalSampleRate: number, targetSampleRate: number): Int16Array;

export { AudioFormat$1 as AudioFormat, PCMData, type PCMFormat, bufferToInt16Array, decodeToPcm, decodeWAV, encodePcm, generateFadeOutSamples, identifyAudioFormat, int16ArrayToBuffer, mulawToPcm16, pcm16ToMulaw, resamplePcm };