LangVoice JavaScript SDK: Complete Guide

Use LangVoice in JavaScript, TypeScript, and Node.js projects.

Installation

npm install langvoice-sdk
# or
yarn add langvoice-sdk

Basic Usage

import { LangVoiceClient } from 'langvoice-sdk';

const client = new LangVoiceClient({
  apiKey: 'your-api-key'
});

// Generate speech
const response = await client.generate({
  text: 'Hello from JavaScript!',
  voice: 'heart',
  language: 'american_english'
});

// Save to file (Node.js)
await response.saveToFile('output.mp3');

Browser Usage

// Get audio as blob for web playback
const blob = response.toBlob();
const audio = new Audio(URL.createObjectURL(blob));
audio.play();

React Integration

import { useState } from 'react';
import { LangVoiceClient } from 'langvoice-sdk';

function TTSComponent() {
  const [audio, setAudio] = useState<string | null>(null);
  
  const generateSpeech = async () => {
    const client = new LangVoiceClient({ apiKey: 'your-key' });
    const response = await client.generate({
      text: 'Hello React!',
      voice: 'heart'
    });
    
    const blob = response.toBlob();
    setAudio(URL.createObjectURL(blob));
  };
  
  return (
    <div>
      <button onClick={generateSpeech}>Generate</button>
      {audio && <audio src={audio} controls />}
    </div>
  );
}

TypeScript Types

Full TypeScript support included:

import { 
  LangVoiceClient,
  GenerateRequest,
  GenerateResponse,
  Voice,
  Language 
} from 'langvoice-sdk';

Start using LangVoice in your JavaScript projects today!