APIリクエストを実行する

import os
import subprocess
from cartesia import Cartesia

if os.environ.get("CARTESIA_API_KEY") is None:
    raise ValueError("CARTESIA_API_KEY is not set")

client = Cartesia(api_key=os.environ.get("CARTESIA_API_KEY"))

data = client.tts.bytes(
    model_id="sonic-2",
    transcript="Hello, world! I'm generating audio on Cartesia.",
    voice_id="694f9389-aac1-45b6-b726-9d9369183238",  # Barbershop Man
    # You can find the supported `output_format`s at https://docs.cartesia.ai/api-reference/tts/bytes
    output_format={
        "container": "wav",
        "encoding": "pcm_f32le",
        "sample_rate": 44100,
    },
)

with open("sonic-2.wav", "wb") as f:
    f.write(data)

# Play the file
subprocess.run(["ffplay", "-autoexit", "-nodisp", "sonic-2.wav"])

env CARTESIA_API_KEY=YOUR_API_KEY python cartesia.py

# Or, if you're using uv
env CARTESIA_API_KEY=YOUR_API_KEY uv run cartesia.py

// hello.js
import { CartesiaClient } from "@cartesia/cartesia-js";
import fs from "node:fs";
import { spawn } from "node:child_process";
import process from "node:process";

if (!process.env.CARTESIA_API_KEY) {
  throw new Error("CARTESIA_API_KEY is not set");
}

// Set up the client.
const client = new CartesiaClient({
  apiKey: process.env.CARTESIA_API_KEY,
});

// Make the API call.
const response = await client.tts.bytes({
  modelId: "sonic-2",
  voice: {
    mode: "id",
    id: "694f9389-aac1-45b6-b726-9d9369183238",
  },
  outputFormat: {
    container: "wav",
    encoding: "pcm_f32le",
    sampleRate: 44100,
  },
  transcript: "Welcome to Cartesia Sonic!",
});

// Write `response` (of type ArrayBuffer) to a file.
fs.writeFileSync("sonic-2.wav", new Uint8Array(response));

// Play the file.
spawn("ffplay", ["-autoexit", "-nodisp", "sonic-2.wav"]);

env CARTESIA_API_KEY=YOUR_API_KEY node hello.js