FFT Analyzer vs Silent Scan

FFT Analyzer is a powerful real-time spectrum analyzer for iPhone. It visualizes audio signals as a detailed frequency spectrum and waveform while presenting important measurements clearly. In addition to live microphone analysis, you can import and examine audio and video files from the Files app or Photo Library. Control playback directly from the waveform while the spectrum and measurements are recalculated for the current position. Key features: - Real-time FFT analysis using the microphone - Analysis of local audio and video files - Import from Files and Photo Library - Open compatible media directly from other apps - Interactive waveform with position slider - Play, pause, stop, and skip controls - Peak, RMS, and clipping indicators - Detection of dominant frequencies - Adjustable frequency and decibel ranges - Linear, logarithmic, and octave-based frequency axes - FFT bars, spectrum trace, and combined display - Waterfall and oscilloscope displays - Persistence, peak hold, and other visual effects - Customizable landscape layout - Extensive smoothing and level behavior settings - User interface in 18 languages File analysis also provides information such as duration, sample rate, channel count, peak values, and prominent frequency regions. Analysis remains synchronized with playback so you can inspect individual sections precisely. FFT Analyzer is designed for musicians, audio engineers, producers, educators, students, and anyone who wants to visualize and better understand audio signals. Processing takes place directly on your iPhone for fast and independent audio analysis tailored to the current signal. Export and reports Analysis results can be exported as a CSV file. The export includes the app version and a timestamp, file details and metadata, technical audio data, overall RMS, peak, and dynamic range values, dominant frequencies, detected findings, and time-based RMS, peak, and frequency values for each analysis frame.

Silent Scanは、0〜50Hzの低周波域に特化した振動測定・記録アプリです。 スマートフォン内蔵の加速度センサーを使用し、床や構造物を通じた低周波振動をリアルタイムで検出・可視化します。 【主な機能】 ・0〜50Hzのリアルタイム低周波振動測定 ・低周波域の周波数スペクトル表示 ・測定履歴の保存と管理 ・GPS位置情報と連携した測定記録（Premium） 低周波振動は人が感じにくいにもかかわらず、体調不良や睡眠障害の原因となることがあります。Silent Scanは日常では気づきにくい低周波域の振動を可視化し、生活環境の状況把握にお役立てください。 静かな場所探しや、振動環境の確認にご活用ください。 【利用規約】 https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Silent Scan is a vibration measurement and recording app specialized for the low-frequency range of 0–50 Hz. Using your smartphone's built-in accelerometer, it detects and visualizes low-frequency vibrations transmitted through floors and structures in real time. [Key Features] • Real-time low-frequency vibration measurement (0–50 Hz) • Frequency spectrum display for the low-frequency range • Save and manage measurement history [Key Features] • Real-time low-frequency vibration measurement (0–50 Hz) • Frequency spectrum display for the low-frequency range • Save and manage measurement history • Measurement records linked with GPS location data (Premium) Although low-frequency vibrations are hard for people to perceive, they can sometimes cause physical discomfort or sleep problems. Silent Scan visualizes low-frequency vibrations that are difficult to notice in daily life, helping you understand the condition of your living environment. Use it to find quieter places or to check the vibration environment around you. [Terms of Use] https://www.apple.com/legal/internet-services/itunes/dev/stdeula/