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• Improved app performance and reduced size via R8 optimization. • Fixed navigation crashes for a smoother user experience. • Full support for the latest Android 15 features.
Test speaker, stereo, microphone & decibel meter (dB) easily
Test your phone’s speakers, stereo audio, microphone, ear speaker, and ambient sound levels with a clean and easy-to-use diagnostic tool. Speaker Test – Stereo Checker helps you check left/right audio channels, stereo balance, earpiece clarity, microphone recording, and approximate decibel (dB) levels directly on your device. Designed with a modern interface and fast controls, the app makes it simple to diagnose common audio issues such as low volume, unbalanced channels, distortion, or weak microphone input. 🔊 Speaker Tests • Left Speaker Test • Right Speaker Test • Stereo Audio Test • Max Volume Test • Continuous loop playback support 🎧 Ear Speaker (Earpiece) Tests • Test phone call-style ear speaker output • Verify earpiece clarity and sound balance • Includes beep and voice-style tests 🎙 Microphone Test • Record and playback a short audio sample • Check microphone clarity and responsiveness • On-device audio processing only 📈 Decibel Meter (dB) • Measure approximate ambient sound levels • Real-time decibel display • View minimum and maximum recorded values • Live waveform visualization Decibel measurements are approximate and may vary depending on device hardware and microphone quality. ⚙️ Additional Features • Adjustable test duration • Loop playback controls • Dark and light themes • Smooth onboarding guide • Clean modern interface • Lightweight and fast performance 🔒 Privacy Microphone permission is required only for: • Microphone testing • Decibel meter functionality Audio recordings and measurements are processed locally on your device and are not uploaded or shared. ⚠️ Disclaimer This app is intended for audio testing and diagnostic purposes only. Results may vary depending on device hardware, manufacturer audio tuning, and environmental conditions. The app does not repair hardware issues. Avoid prolonged listening at high volume levels.