System Hardware & Media Audit
Automated health inspection of your browser's media hardware APIs, user permissions, and connected peripheral devices.
Hardware Subsystem Overview
Client-side runtime query of WebRTC, Web Audio, and
media capture APIs.
Media Capture (GUM)
Querying...
Device Enumeration
Querying...
Web Audio Pipeline
Querying...
Media Encoder
Querying...
Connected Hardware Peripherals
Scanning...
Querying hardware descriptors...
How the Hardware Subsystem Audit Works
1
Query APIs
The browser runtime checks for WebRTC media ingestion and DSP sound synthesis
capabilities.
2
Enumerate devices
Queries hardware buses to count all active camera, microphone, and speaker
peripherals.
3
Diagnose bottlenecks
Flags missing drivers, disabled browser flags, or restricted privacy sandboxes.
Common Subsystem Errors & Fixes
| Error / Symptom | Root Cause | Recommended Solution |
|---|---|---|
| Media Capture API reports Fail | Insecure HTTP origin or disabled WebRTC flags in browser settings. | Access the website using HTTPS (or localhost) and ensure WebRTC is not blocked by third-party privacy extensions. |
| Device Enumeration returns 0 devices | Missing or corrupt audio/video drivers in Windows Device Manager. | Reinstall OEM motherboard audio drivers and webcam manufacturer drivers, then restart your browser. |
| Device names shown as generic labels | Browser anti-fingerprinting protection active before permission grant. | Click 'Test my webcam' or 'Test my microphone' to trigger the browser permission prompt and reveal exact model names. |
| Web Audio Pipeline reports Unsupported | Outdated legacy browser or disabled audio engine policy. | Update to the latest version of Chrome, Edge, Firefox, or Safari with Web Audio API 1.0 support enabled. |
Browser Hardware Sandboxing & Security Isolation
Modern web browsers enforce strict security sandboxes to protect user privacy. Websites cannot silently access
microphones, cameras, or biometric hardware without explicit permission prompts. The
navigator.mediaDevices subsystem was standardized by the W3C to give users total control over
their connected media peripherals.
HWCheck operates entirely within this sandboxed client runtime. No video frames, audio samples, or hardware serial numbers are ever collected, transmitted, or logged to remote servers. All diagnostic evaluations occur directly in your computer's local memory.
Explore Other Hardware Diagnostics
Microphone Test
Live decibel meter, waveform visualizer, clipping alert, and 5-second
playback.
Webcam Test
Camera preview, real-time FPS calculation, resolution matrix, and test
snapshot.
Speakers & Headphones
Stereo Left/Right channel isolation, driver phase check, and audio frequency
sweep.
FPS Analyzer
High-precision frame delivery analysis, frame drop monitoring, and stability
graph.
Frequently Asked Questions
What does this automated system audit check?
The audit inspects four critical browser subsystems: MediaDevices getUserMedia support, enumerateDevices
hardware querying, the Web Audio DSP sound processing pipeline, and hardware MediaRecorder encoding.
Why do some device labels say 'Audio Device' or 'Camera' instead of the model name?
For security and anti-fingerprinting protection, modern browsers mask exact hardware model strings until
you grant microphone or camera permission to the site.
Does the system audit transmit my device identifiers to a server?
No. All checks run 100% locally in your browser's JavaScript runtime. Zero device IDs, hashes, or
technical specs are uploaded or logged.
What should I do if the Media Capture API reports Fail?
Ensure your browser is updated to the latest stable release and verify that the page is loaded over HTTPS
or localhost, as WebRTC APIs require a secure origin.
Can this tool detect disconnected or disabled USB peripherals?
No. The browser can only query devices that are physically plugged in, powered on, and recognized by your
operating system's device manager.
Which browsers support full media subsystem auditing?
All modern desktop and mobile browsers, including Google Chrome, Microsoft Edge, Mozilla Firefox, Apple
Safari, Opera, and Brave.