Text to Speech API for Discord Bots

// tts.js: Audexum TTS helper for discord.js v14
const { Readable } = require("stream");

const API = "https://audexum.com/api/synthesize";

/**
 * Returns a Node.js Readable stream of PCM WAV audio.
 * Pass it directly to createAudioResource() with StreamType.Arbitrary.
 */
async function synthesize(text, voice = "af_heart") {
  const res = await fetch(API, {
    method: "POST",
    headers: {
      Authorization: `Bearer ${process.env.AUDEXUM_API_KEY}`,
      "Content-Type": "application/json",
    },
    body: JSON.stringify({ text, voice, format: "wav" }),
  });
  if (!res.ok) throw new Error(`Audexum ${res.status}: ${await res.text()}`);
  return Readable.fromWeb(res.body);
}

module.exports = { synthesize };