AudioTestLab vs Vgent PdM

AudioTestLab 是一款专业级音频测试工具，集信号发生器、声音分析仪和睡眠监测于一体。信号发生器 6种波形：正弦/方波/三角/锯齿/白噪声/粉红噪声 频率 20Hz~20kHz + 振幅 0~100% 连续可调 实时 FFT 频谱分析 + 频率响应参考 声音分析仪 实时麦克风采集与分析 dB SPL 声压级 + A计权响度（Phon/Sone） Zwicker 模型尖锐度分析（acum） 实时波形图 + 频谱瀑布图 峰值/RMS/Crest Factor 专业指标 睡眠监测 整夜麦克风监听打鼾 智能呼噜检测（低频能量分析） 睡眠质量评分 0-100 每小时趋势图表 + 健康建议 支持 iOS 17.0+ / iPadOS 17.0+ AudioTestLab is a professional-grade audio testing toolkit combining a signal generator, sound analyzer, and sleep monitor. Whether you're an audio engineer tuning equipment, a music lover testing speakers, or monitoring your sleep health, this app has you covered. Signal Generator 6 waveforms: Sine, Square, Triangle, Sawtooth, White Noise, Pink Noise Frequency range 20Hz ~ 20kHz with continuous adjustment Amplitude control 0~100% Real-time FFT spectrum analysis Frequency response & THD reference measurements Sound Analyzer Real-time microphone capture & analysis dB SPL sound pressure level measurement A-weighted loudness calculation (Phon / Sone) Zwicker simplified model sharpness analysis (acum) Real-time waveform & spectrum waterfall display Peak, RMS, Crest Factor professional metrics Loudness level indicator (Quiet → Dangerous) Sleep Monitor All-night microphone snore detection Smart snore identification via low-frequency energy analysis Automatic snore event recording: time, duration, loudness Sleep quality score 0-100 Hourly snore trend charts Personalized health recommendations Full sleep report summary Supports iOS 17.0+ / iPadOS 17.0+

Vgent helps maintenance teams inspect industrial equipment using vibration measurements and operating sound. Keep measurement points, reports and repair follow-up together for motors, pumps, fans, gearboxes and other equipment. CAPTURE VIBRATION OR SOUND Use the built-in microphone for acoustic inspections and unusual-noise checks. Vibration measurement requires a compatible, calibrated USB vibration sensor connected and bound to Vgent using its supplied pairing QR code. Acoustic recordings reflect changes in sound; they do not replace calibrated vibration measurements. BUILD REPEATABLE INSPECTIONS Create equipment records with photos, measurement locations, directions and operating conditions. Follow multi-point capture rounds, review progress and resume unfinished work. Generate equipment QR labels and scan them to find equipment already saved on your device. REVIEW THE EVIDENCE View overall and point-level reports, waveforms, spectra and capture quality. Add manual review labels to the relevant points while retaining the original diagnostic findings. Filter report history and export PDF reports for maintenance discussions. FOLLOW CHANGES AND REPAIRS Compare compatible measurements over time. Record repair actions, dates, outcomes and photos, then review suitable follow-up measurements. Preview the normal and abnormal samples used when rebuilding a device trend model. KEEP RECORDS ORGANIZED Export and restore complete backup folders through the system Files picker. Backup status helps identify changes since the last export. Optional data contribution is off by default and is separate from access to diagnosis features. OPTIONAL ON-DEVICE INTERPRETATION On supported devices, interpretation organizes saved diagnostic evidence for review without changing the original diagnosis severity. This feature requires iOS 26 or later, Apple Intelligence enabled, a ready on-device model and a supported app language. Reports and trend conclusions remain available when interpretation is unavailable. For useful comparisons, keep measurement location, sensor mounting or microphone position, and equipment operating conditions consistent. Vgent supports inspection and maintenance review; results depend on capture quality and the available evidence. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/