Playing & saving audio

import { Geko } from "@gekoai/sdk";
import { writeFile } from "node:fs/promises";

const geko = new Geko({ apiKey: process.env.GEKO_API_KEY });
const audio = await geko.tts.create({ text: "Сәлем", voice: "Aigerim" });

await writeFile("hello.wav", Buffer.from(audio));

import { spawn } from "node:child_process";
// after writing hello.wav:
spawn(process.platform === "darwin" ? "afplay" : "aplay", ["hello.wav"]);

const res = await fetch("/api/tts", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({ text: "Сәлем", voice: "Aigerim" }),
});
const bytes = await res.arrayBuffer();

const url = URL.createObjectURL(new Blob([bytes], { type: "audio/wav" }));
new Audio(url).play();
// revoke when done: URL.revokeObjectURL(url)

curl -X POST https://geko--tokay-serve-web.modal.run/v1/tts \
  -H "Authorization: Bearer $GEKO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"Сәлем","voice":"Aigerim"}' \
  --output hello.wav

ffmpeg -i hello.wav -b:a 128k hello.mp3      # MP3
ffmpeg -i hello.wav -c:a libopus hello.opus  # Opus

ffmpeg -i hello.wav -ar 8000 -ac 1 -f mulaw hello.ulaw