Skip to main content
Back to Home

About AudioTest Pro

Professional audio testing tools, free and accessible to everyone

What is AudioTest Pro?

AudioTest Pro is a comprehensive suite of browser-based audio testing tools designed for audio engineers, audiophiles, musicians, and anyone interested in understanding their audio equipment and hearing capabilities.

Our mission is to make professional-grade audio testing accessible to everyone, without requiring expensive equipment, software licenses, or technical expertise. All tools run entirely in your web browser using modern Web Audio API technology - no installation, no registration, and no data collection.

When you need an ambient sound companion for extended calibration sessions, explore SoundScape for richly layered background audio that keeps your ears fresh between tests.

What You Can Do

  • Generate Test Tones: Precise sine, square, sawtooth, and triangle waves from 20 Hz to 20 kHz
  • Sweep Frequencies: Test speaker response across the entire audible spectrum
  • Test Your Hearing: Assess your hearing range and compare to age norms
  • Mix Multiple Tones: Create complex test signals with phase control
  • Test Subwoofers: Specialized low-frequency testing from 10-200 Hz
  • Generate DTMF Tones: Classic telephone touch-tone signals

How AudioTest Pro Works

Web Audio API Technology

AudioTest Pro uses the Web Audio API, a powerful browser technology that enables precise audio synthesis and processing directly in your browser. This means:

  • All audio is generated in real-time on your device
  • No audio files are downloaded or streamed
  • Precise frequency and waveform control
  • Low latency audio processing
  • Works offline after initial page load

Privacy & Security

Your privacy is paramount:

  • No Data Collection: We don't collect personal information or audio data
  • No Server Processing: All audio processing happens in your browser
  • Local Storage Only: Preferences and history stay on your device
  • No Tracking: We use privacy-focused analytics only

Browser Compatibility

AudioTest Pro works best on modern browsers that support the Web Audio API:

  • Chrome/Edge: Full support, recommended
  • Firefox: Full support
  • Safari: Full support (requires user interaction to start audio)
  • Mobile: Works on iOS Safari and Android Chrome

Accuracy and Calibration Notes

Important: The accuracy of AudioTest Pro depends on your hardware and environment.

Factors Affecting Accuracy

  • Audio Hardware: Quality of your DAC, amplifier, and speakers/headphones
  • System Volume: Operating system and application volume settings
  • Sample Rate: Your device's audio output sample rate
  • Ambient Noise: Background noise affects hearing tests
  • Room Acoustics: Room characteristics affect speaker testing

Frequency Accuracy

Tone frequencies are mathematically precise in the digital domain. However, actual output frequency depends on your device's audio hardware and sample rate. For professional calibration, use dedicated measurement equipment alongside AudioTest Pro.

Hearing Test Limitations

Our hearing test provides a general assessment but is not a substitute for professional audiometric testing:

  • Results depend on headphone/speaker quality and volume calibration
  • Ambient noise can affect results
  • Results are for educational purposes only
  • Consult an audiologist for medical-grade hearing assessment

Who We Are

AudioTest Pro was created to democratize audio testing tools that are typically expensive or complicated. We believe everyone should have access to quality audio testing tools, whether you're:

  • A professional audio engineer calibrating studio monitors
  • An audiophile setting up a home theater system
  • A musician tuning instruments or testing PA systems
  • A student learning about audio and acoustics
  • Someone curious about their hearing capabilities

We're committed to keeping AudioTest Pro free, privacy-focused, and continuously improved based on user needs.

Technology Stack

AudioTest Pro is built with modern web technologies:

Frontend

  • Nuxt 4 (Vue 3)
  • Tailwind CSS
  • Web Audio API
  • Canvas API (visualizations)
  • IndexedDB (local storage)

Hosting

  • Vercel (Edge Network)
  • Global CDN
  • Automatic HTTPS
  • Fast loading times
  • 99.9% uptime

Future Enhancements

We're continuously working to improve AudioTest Pro. Planned features include:

  • Spectrum analyzer with real-time FFT visualization
  • Pink noise generator for calibration
  • Room mode calculator
  • Export test results as PDF reports
  • More preset test configurations
  • Advanced sweep curves (S-curve, exponential)

Support AudioTest Pro

AudioTest Pro is free and will remain free. If you find it useful, the best way to support us is to:

  • Share AudioTest Pro with others who might benefit
  • Provide feedback and suggestions for improvement
  • Report bugs or issues you encounter
  • Follow us for updates on new features