Speaker Test: Audio & Stereo

Speaker Test Check is a professional acoustic utility and sound laboratory designed to verify, benchmark, and maintain your device speakers and audio hardware. Whether you need to verify stereo separation on internal speakers, check frequency response across the audible spectrum, or eject trapped water moisture from your speaker mesh after exposure to liquids, Speaker Test Check delivers accurate acoustic calibration tools in an intuitive, modern interface. KEY FEATURES: • Automated Hardware Diagnostic Wizard Run a comprehensive 4-step diagnostic sequence covering stereo channel balance, low-frequency bass response, high-frequency treble clarity, and ambient noise verification. Receive instant pass/fail ratings for your hardware. • High-Precision Tone Generator (20 Hz - 20,000 Hz) Generate smooth, continuous sine wave frequencies from deep sub-bass (20 Hz) to the upper limit of human hearing (20,000 Hz). Test speaker driver resonance, harmonic distortion, and crossover points with single-Hertz slider precision. • Stereo Channel Separation Accurately identify left and right audio channels. Isolate speaker performance to detect silent channels, phasing issues, or imbalanced amplifier gains. • 165Hz Water Ejection Sound Wave Emit a specialized 165Hz acoustic vibration impulse specifically tuned to dislodge trapped water droplets and dust particles from the speaker grill and membrane. • Real-Time Audio Visualizer & Decibel Meter Monitor live microphone feedback with real-time waveform visualization and calibrated ambient decibel (dB) metering. Built-in ambient noise detection alerts you when background sound interferes with acoustic testing. • Curated Frequency Presets Quickly test industry-standard acoustic benchmark frequencies including Sub Bass (60 Hz), Bass (120 Hz), Water Eject (165 Hz), Midrange (1 kHz), Voice Presence (3 kHz), High Frequencies (10 kHz), and Ultrasonic Threshold (15 kHz). • Zero Data Collection & Complete Privacy All audio processing runs entirely in volatile memory on your local device. No personal data, telemetry, or audio recordings are collected, saved, or uploaded to any server. --- Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://yunusgunduz.com/pp/speaker_test_check_privacy_policy.html Support & Contact: https://yunusgunduz.com/contact.php?lang=en