ClearHear: Sound Amplifier EQ

ClearHear Amplifier turns your Android phone and headphones into a powerful personal sound amplifier and speech clarity enhancer. Powered by high-performance low-latency audio DSP (C++ Google Oboe) and on-device AI voice isolation, ClearHear makes every conversation easier to understand in noisy rooms, restaurants, lectures, and family gatherings. ⚠️ IMPORTANT WELLNESS & NON-MEDICAL NOTICE ClearHear is a Personal Sound Amplification Product (PSAP) and audio equalizer utility designed for everyday listening comfort. ClearHear is NOT a certified clinical hearing aid or medical device and is not intended to diagnose, treat, cure, or prevent hearing loss or any medical condition. In-app calibration customizes headphone equalizer preferences only and does not replace a clinical audiological exam. If you experience hearing difficulties, consult a qualified physician or licensed audiologist. ════════════════════════════════════════ KEY FEATURES ════════════════════════════════════════ 🎧 SUB-20MS ULTRA-LOW LATENCY AUDIO Enjoy natural, real-time sound amplification without dizzying delays or echo. Using native C++ Oboe AAudio integration, ClearHear achieves sub-20ms roundtrip audio latency—delivering immediate vocal clarity straight to your wired or wireless Bluetooth earbuds. 🤖 AI NEURAL VOICE ISOLATION (RNNoise 48 kHz) Cut through chaotic restaurant background chatter and café noise. Our efficient 48 kHz recurrent neural denoiser strips non-vocal background noise while keeping human speech crisp and intelligible (<2% CPU overhead). 🛡️ WHISPERDRC™ & 85 dB SAFETY BRICKWALL LIMITER Never worry about sudden loud noises hurting your ears. ClearHear boosts quiet whispers (+10 dB to +30 dB) while an instantaneous lookahead limiter clamps sudden clatters, dropped plates, or traffic horns below safe listening thresholds (~85 dB SPL). 🎚️ SPEECH-FOCUSED 6-BAND PARAMETRIC EQUALIZER Fine-tune the exact frequencies where human consonants live: • 250 Hz – Vocal warmth & body • 500 Hz – Lower vowel formants • 1 kHz – Core speech presence & projection • 2 kHz – Consonant intelligibility (/p/, /t/, /k/) • 4 kHz – High articulation & fricative clarity (/s/, /f/) • 8 kHz – Harmonic air & acoustic detail 🦻 INDEPENDENT LEFT / RIGHT EAR CALIBRATION Everyone's hearing balance is unique. Adjust gain and equalizer curves independently for your left and right ears, perfectly balancing stereo clarity for asymmetrical listening needs. 📍 TABLE MIC-TO-EARBUD ROUTING Place your phone on the table in a crowded conference room or near the television while listening comfortably through your wireless Bluetooth earbuds. Select independent mic sources (Bottom Mic, Top Mic, or Headset). ⏪ RETROACTIVE "MISSED THAT" 30-SECOND BUFFER Missed an important sentence during a fast conversation or lecture? Tap "Last 15s" to instantly replay what was just spoken directly into your headphones, or save a 30-second WAV recording to your private local archive. 🔒 100% PRIVATE & ON-DEVICE Your conversations are yours alone. All microphone audio is processed 100% in local device RAM. Zero audio streams, recordings, or vocal biometrics are ever uploaded to cloud servers. ════════════════════════════════════════ HOW TO USE CLEARHEAR ════════════════════════════════════════ 1. Connect wired headphones or wireless Bluetooth earbuds (Acoustic Feedback Guard protects you from speaker feedback). 2. Tap "Start Amplifier" to engage live low-latency sound passthrough. 3. Choose an environment preset: Quiet Room, Crowded Restaurant, Lecture, or TV Mode. 4. Customize your 6-band speech EQ or run the 2-minute personal calibration check.