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Last updated on: 2026-06-14
App Store Apps > Utilities > FNam FFT Spectrogram Analyzer
FNam FFT Spectrogram Analyzer icon

FNam FFT Spectrogram Analyzer

2.0
YEON SEOB KIM
0.00
0 reviews
Free

Download from the App Store

About FNam FFT Spectrogram Analyzer

FNam FFT Spectrogram Analyzer is an overall app developed by YEON SEOB KIM.

Download Statistics

User Ratings

The app has no ratings yet.

App Information

FNam FFT Spectrogram Analyzer is FREE to download. The APK download size is 10.79 MB. The latest version available is 2.0. The last update was on June 5, 2026.

Technical Requirements

The app has a content rating of Medium Maturity. The app has been available on Google Play February 2026.

Description
■ FNam FFT Spectrogram Analyzer
Engineers need tools that are ready to use — anytime, anywhere.
FNam FFT Spectrogram Analyzer turns your smartphone into a
professional audio analysis tool. Unlike typical sound meter apps,
it delivers advanced features like Dual File Comparison and CSV
Export for precise post-analysis

* completely free, no ads.
Real-time FFT & Spectrogram / All processing runs on-device /
No audio data uploaded externally.

[Video Guide - See it in action]
https://youtu.be/72SYLTG0l_8

■ NEW FEATURES
1. FNam FFT Spectrogram Analyzer
• Landscape mode provides a larger screen for detailed analysis.

■ KEY FEATURES

1. Real-time Audio Analysis
• High-precision FFT (Fast Fourier Transform) Graph.
• Time Domain Waveform (Oscilloscope) view.
• Fluid Spectrogram for visualizing frequency changes over time.

2. Dual File Comparison (Exclusive Feature)
• Simultaneous loading of two WAV files for comparative analysis.
• Spectrum Overlay: Visually compare differences using color-coded traces (Blue vs. Magenta).
• Instant Calculation: Provides Arithmetic Mean and Mean Difference between signals.

3. Data Logging & Export
• Flexible Sampling Rates: Supports various rates (4000Hz, 8000Hz, 16000Hz, 22050Hz, 44100Hz).
• High-quality Recording: Audio is recorded and saved as WAV files, strictly matching the selected sampling rate.
• Raw Data Export: Exports raw PCM data to CSV format. The exported data maintains the exact sampling rate and duration, making it optimized for post-processing in Excel, MATLAB, or Python.
• File Management: Files are stored in the 'Download\FNamDoc' directory.
- WAV naming format: Date_Time_SampleRate_Channel.wav
ex) 20260219_164715_44100Hz_Mono.wav

- CSV naming format: Selected WAV file name_SampleRate_Duration(s).csv
ex) 20260219_164715_44100Hz_Mono_44100_5.2s.csv

4. Professional Configuration
• Window Functions: Selectable Rectangular, Hann, Hamming, and Blackman windows.
• Frequency Weighting: Supports A, B, C, and Z (Linear) standard weighting filters.
• Axis Control: Supports both Auto-scaling and Manual range settings (Hz / dB) for precise graph inspection.
• Calibration: Independent offset controls for FFT and Time Domain to ensure alignment with professional reference equipment.
• Max Peak Hold: Displays and holds the maximum amplitude values across the frequency spectrum.

■ TECHNICAL SPECIFICATIONS
• Signal Processing: Anti-aliasing filters are automatically applied during downsampling to ensure measurement accuracy.
• Sampling Rate: Supports standard rates up to 44.1kHz (device dependent).
• Standards: Implements IEC 61672 frequency-weighting formulas for A/B/C weighting calculations.

Note: This app implements IEC 61672 frequency-weighting formulas. Measurement discrepancies compared to professional equipment may occur due to the hardware frequency response limitations of the built-in smartphone microphone. For critical measurements, the use of a calibrated external microphone is recommended.
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More data about FNam FFT Spectrogram Analyzer

Price Free to download
Rating No ratings
Ranking Not ranked
Version 2.0
App download size 10.8 MB
Maturity Medium Maturity

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Changelog of FNam FFT Spectrogram Analyzer

No changelog data

Developer information for YEON SEOB KIM

YEON SEOB KIM

Address:

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App Store Rankings for FNam FFT Spectrogram Analyzer

This app is not ranked

Technologies used by FNam FFT Spectrogram Analyzer

N-Signal / FFT Sound Analyzer icon N-Signal / FFT Sound Analyzer
iSoundMeter - Know your sounds icon iSoundMeter - Know your sounds
iHarmonizer icon iHarmonizer
Wadokei57 Astronomical  Watch icon Wadokei57 Astronomical Watch
SimpleFFT icon SimpleFFT
o46scope icon o46scope
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