Audio File Analyzer

Contains adsIn-app purchases
Content rating
Everyone
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Content rating
Everyone
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About this app

This app supports simultaneous display of the "audio waveform" and the FFT-based "amplitude spectrum" (frequency magnitude) for audio files on your device.
(FFT: Fast Fourier Transform)
You can check the frequency components around the current playback position while playing the file.

[Features]
- Simultaneous display of audio waveform and a real-time spectrum linked to the playback position
- Supports both portrait and landscape orientation
- Channel display switching (Mix / L / R)
- Displays the peak level of the spectrum and its frequency
- Supports zooming in the frequency direction of the spectrum

[Spectrum Display Settings]
- Frequency Axis: Linear, Log
- FFT Size: 1024, 2048, 4096, 8192, 16384 (* '16384' is available in the Pro version.)
- Window Function: Hann, Hamm, Blkman, None
- Octave Analysis: FFT, 1/12, 1/6, 1/3, 1, Calc Method: Max, Ave


The Pro version offers Ad-Free Viewing and High-Resolution Analysis (FFT size: 16384).
Updated on
Jul 21, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location and Device or other IDs
This app may collect these data types
Location and Device or other IDs
Data is encrypted in transit
Data can’t be deleted

What’s new

Added in-app purchase items. (Pro (High-Res analysis, Remove ads))
Content rating
Everyone
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App support

About the developer
LOOP-SESSIONS. LLC.
ls-support@loopsessions.co.jp
1-2-9, UCHIHIRANOMACHI, CHUO-KU GRAND BLDG. OTEMAE 3F 304 OSAKA, 大阪府 540-0037 Japan
+81 90-6317-5846

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