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Build a real-time speech recognition app using ReactJS and Web Speech API for voice-based interactions.
In this tutorial, you’ll learn how to create a speech detection application using React JS and the Web Speech API. This app listens to user voice input and converts it into text in real-time.
It’s a practical project to understand browser APIs, event handling, and interactive UI development.
This project demonstrates how to build a speech recognition app that captures voice input and converts it into text using the Web Speech API. The app provides real-time feedback and is designed with a clean and responsive UI.
It highlights how modern browsers can handle voice-based interactions without requiring external libraries.
A breakdown of my approach in developing a lightweight JavaScript solution focused on functionality, simplicity, and performance.
Designed an interactive and responsive interface using React components.
Implemented voice detection using Web Speech API and handled real-time transcription.
Ensured smooth listening, stopping, and displaying speech results dynamically.
Preparing IDE Environment...
Initialize a new React application using Create React App and navigate into the project directory.
npx create-react-app speech-detection-app
cd speech-detection-app
npm startInstall essential libraries like PDF generator, file saver, and DOCX exporter used in this project. Your project uses libraries like jspdf, file-saver, and docx.
npm install jspdf file-saver docxCreate a SpeechRecognition component that uses the Web Speech API to capture voice input, process speech, and display live transcript.
const SpeechRecognition =
window.SpeechRecognition || window.webkitSpeechRecognition;
const recognition = new SpeechRecognition();
recognition.interimResults = true;
recognition.onresult = (event) => {
const transcript = event.results[0][0].transcript;
};Load multiple languages from a JSON file and allow users to select their preferred speech recognition language dynamically.
<select value={lang} onChange={handleLangChange}>
{languages.map((language) => (
<option key={language.code} value={language.code}>
{language.name}
</option>
))}
</select>Create UI elements including microphone toggle button, transcript display, copy button, and download options for better user interaction.
<button onClick={toggleRecognition}>🎤</button>
<div className="output">
{transcript.split("\n").map((line, index) => (
<p key={index}>{line}</p>
))}
</div>Enable users to download their speech transcript in multiple formats including PDF, TXT, and DOCX using external libraries.
const downloadPDF = () => {
const doc = new jsPDF();
doc.text(transcript, 10, 10);
doc.save("transcript.pdf");
};Experience the project in action. Explore the live demo to see all features, performance, and user interface in a real-world environment.
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<Frontend Developer>
HTML • CSS • JS • React • WordPress
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