闭环声学增益审计
扬声器排水清灰效果验证器
精准检测在执行声波排水或清灰后，扬声器实际音量是否完全恢复。实时量化前后分贝改善差值（ΔdB）。
为什么闭环声学验证至关重要
绝大多数在线排水工具仅单向播放声音，无法告知用户扬声器是否真正改善。我们的浏览器原生声学审计引擎通过麦克风实时采集测试信号，精确计算真实分贝增益（ΔdB = dB_post - dB_pre）。
Technical FAQs & Helpful Content
扬声器排水效果验证常见问题
关于此项诊断工具、校准步骤及显示器技术标准所需了解的一切。
01.How does mic-based speaker verification work?
Our closed-loop verification tool measures pre-cleaning decibels (dB) and post-cleaning decibels (dB) by processing live audio input through Web Audio API AnalyserNodes. This gives you mathematical proof of volume recovery after running water or dust ejection.
02.Why do I need to grant microphone permissions?
Microphone access is required solely to listen to the test tones played by your speaker and measure RMS amplitude levels. Your microphone audio is processed 100% locally in your browser and is never recorded, saved, or uploaded to any server.
03.What is a good acoustic decibel gain after water ejection?
A gain of +2 dB to +6 dB indicates that water droplets or dust buildup blocking the speaker membrane have been successfully expelled, restoring acoustic clarity and loudness.
04.What if the acoustic verification shows no volume change?
If decibel levels remain identical after water ejection, try switching your cleaner to Deep Clean mode (60s cycle). If audio is still severely muffled after 24 hours of drying, physical water damage may require professional hardware repair.
05.How close should I hold the microphone to the speaker during testing?
Hold your device or microphone approximately 2 to 4 inches (5 to 10 cm) away from the speaker opening in a quiet room for consistent decibel measurement.
06.Can I use this to test wireless earbuds or AirPods?
Yes! Connect your earbuds via Bluetooth, place them speaker-side up near your phone or computer microphone, and run the verification sequence.
07.Is my microphone data kept private?
Yes, 100% private. All DSP analysis happens in real-time inside your local browser memory using HTML5 Web Audio API nodes. Zero audio data is transmitted across the network.
08.Does background noise affect the decibel measurement?
Yes. For accurate verification, run the test in a quiet room with minimal ambient noise (fans, air conditioning, or background talking).
09.What frequency tone is used for verification?
The verification engine uses a clean 1000Hz reference calibration tone because 1kHz is standard in acoustic engineering for measuring speaker driver output and sensitivity.
10.Can I re-run the verification test multiple times?
Absolutely. You can run unlimited baseline and post-clean verification cycles to monitor your speaker recovery progress over time.
不确定接下来该运行哪项测试？需要故障排除建议？
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