# Audio & Video Device Test > Test your microphone, camera, speakers, and headphones directly in your browser ## About This is a web-based audio and video device testing tool that allows users to: - Test microphone functionality and recording quality - Test speakers and headphones with various audio samples - Test camera functionality and video quality - Troubleshoot audio/video device issues - Select specific audio output devices for testing ## Main sections - [Speaker Test](https://www.audiotest.app/speaker-test): Check Left/Right channels, frequency sweeps (20Hz-20kHz), noise generation, spatial audio positioning, and speaker output quality. - [Microphone Test](https://www.audiotest.app/microphone-test): Live microphone monitoring, recording and playback tests, volume peak visualization, and background noise detection. - [Camera Test](https://www.audiotest.app/camera-test): Diagnostics for your webcam including live video previews, frame rate tracking, resolution analysis, and multi-camera support. - [Keyboard Test](https://www.audiotest.app/keyboard-test): Visualizer for ghosting testing, key chattering, and typing speed WPM tests. - [Mouse Test](https://www.audiotest.app/mouse-test): Heatmap tracking, polling rate testing, CPS clicking speed, and overall accuracy diagnostics. ## Technology Stack - Next.js 14 (App Router) - TypeScript - TailwindCSS + shadcn/ui components - Web Audio API - MediaDevices API - React with modern hooks ## Browser Support - Chrome/Chromium (recommended) - Firefox - Safari - Edge Requires HTTPS for device access functionality. ## Privacy All testing is performed locally in your browser. No audio, video, or device information is transmitted to external servers. ## Open Source This project follows clean code principles, modular architecture, and modern web development best practices.