FFT Plot
ONYX Apps
About this app
- Category Music
- Age 10
- Updated Nov 19, 2018
- OS IOS
Editor reviews
FFT Plot is a fast and intuitive audio spectrum analyzer designed for musicians, sound engineers, and audio hobbyists. Core features include real-time FFT visualization, adjustable resolution and smoothing for detailed frequency inspection, and easy export of plots and measurement data. The app is lightweight and low-latency, supports microphone, line-in, and file inputs, and helps with tuning, mixing, and diagnosing audio problems. Keywords: audio analyzer, FFT, spectrum analyzer, music utilities, real-time audio analysis.
Screenshots
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How to use:
1. Download and install FFT Plot and grant microphone or file access when prompted.
2. Choose an input source (microphone, line-in, or audio file) and tap Start to begin real-time analysis.
3. Adjust resolution and smoothing controls to focus on narrow or broad frequency bands.
4. Place markers, zoom into peaks, and read frequency and amplitude values directly on the plot.
5. Save or export plots and CSV data for reporting, tuning, or further analysis.