Resonance vs Spectrum Analyzer+ FFT

Resonance turns your smartphone into a professional vibration analysis instrument. Measure, record, and analyze vibrations with real-time spectral analysis — on-site, in seconds. Real-Time Analysis: • Live accelerometer streaming with instant frequency domain charts • Power Spectral Density (PSD) and FFT analysis • Configurable window functions (Hanning, and more) • Velocity and displacement computed from acceleration data Bluetooth Sensor Support: • Connect external Bluetooth accelerometers • Compatible with Witmotion sensors • Seamless pairing and real-time data streaming Powerful Tools: • Damping ratio estimation • Customizable units • Adjustable recording delay and duration Export & Share: • Export raw data as CSV for further analysis • Generate professional PDF reports • Save and revisit past recordings on-device Versatile Applications: • Assess suspended floor serviceability • Measure fundamental periods of structures • Diagnose problematic floor or machinery vibrations • Detect resonance issues • Aid in isolator mount design and validation • Vehicle NVH and HVAC vibration diagnostics Perfect for engineers, architects, technicians, researchers, and hobbyists seeking vibration analysis on the go. Available in English, Spanish, German, French, Portuguese, Russian, Japanese, Chinese (Simplified & Traditional). Disclaimer: Use of the Resonance Vibration Analysis app is at your own risk. The app is provided on an AS-IS basis. We do not assume responsibility for decisions made by users based solely on information provided by this app.

Spectrum Analyzer+ FFT transforms your iPhone into a professional audio frequency analyzer. Using the built-in microphone, it visualizes sound frequencies in real time with a detailed FFT spectrum display. The analyzer captures live audio through the microphone and breaks it down into individual frequency bands, showing the amplitude of each frequency from 20 Hz to 20 kHz. Note: This app analyzes audio in real time for visualization purposes only — it does not record or store any audio. Key Features: - Real-time FFT audio spectrum visualization via microphone - Frequency range from 20 Hz to 20 kHz - Peak frequency detection with Hz display - Average dB level per frequency band - Adjustable dB range for detail viewing - Smooth animated bar display - Dark theme optimized for readability Whether you're a musician tuning instruments, an audio engineer checking room acoustics, or a sound enthusiast exploring frequencies, Spectrum Analyzer+ gives you a powerful visualization tool in your pocket.