Audio File Analyzer
MusicUtilities

Audio File Analyzer

Loop-Sessions.LLC. · released 21 Jul 2026 · Open in App Store ↗

Revenue 30d not estimated
Downloads 30d not estimated
Rating 5.00 1 reviews

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Description

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.

Pitch meter display.

Supports transcription (iOS 26 ~).

[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

[Transcription screen] (* Available on iOS 26 or later.)

Transcribes speech in the selected audio file.

The results are divided into recognized speech segments and displayed in cells with their start times.

Tap a cell to move to that position.

The Pro version offers Ad-Free Viewing and High-Resolution Analysis (FFT size: 16384).