Microphone Test

What Happens When You Test Your Microphone?

1. Your browser requests permission to access your microphone
2. Audio is recorded locally in your browser for the selected duration
3. Real-time analysis (waveform, frequency, diagnostics) happens in your browser using JavaScript
4. You can download your recording directly to your computer - nothing is sent to our servers

Technical Implementation (View Source Code)

Step 1: Request Microphone Access

// Request microphone access
navigator.mediaDevices.getUserMedia({ audio: true })
  .then(stream => {
    // Stream is processed locally in your browser
  });

Step 2: Analyze Audio Locally

// Create audio context and analyzer
const audioContext = new AudioContext();
const analyser = audioContext.createAnalyser();
const source = audioContext.createMediaStreamSource(stream);
source.connect(analyser); // All processing happens in YOUR browser

Step 3: Record Locally

// Record audio locally using MediaRecorder API
const mediaRecorder = new MediaRecorder(stream);
mediaRecorder.ondataavailable = (e) => {
  // Recording stays in YOUR browser memory
  const audioBlob = new Blob([e.data], { type: 'audio/webm' });
};

Step 4: Download to Your Computer

// Download recording to YOUR computer
const url = URL.createObjectURL(audioBlob);
downloadLink.href = url; // File downloads directly to you
downloadLink.download = 'microphone_test.wav';