Lowest price: Free 3 years ago (-100%)
This application analyzes audio input from your microphone, displaying both the waveform and amplitude spectrum in real-time. It offers extensive customization for display, calculation, and signal generation.
Summarized from real user reviews of Audio / Spectrum Analyzer. Based on 129 reviews and a 4.5/5 average, it highlights the 4 positives and 4 negatives reviewers mention most about this Music app.
2.4.0
June 9, 2026
Added Spectrogram display. It supports simultaneous display of up to two screens from Waveform / Spectrum / Spectrogram. The screen layout has also been changed. The advertising system has been updated. As a result, banner ads have been changed to a slightly larger size.
More$11.49
Pro (Remove ads, High-Res analysis)
Hide ads & Unlock: FFT Size 16384, Spectrum Ave 4,8.
3 issues
Stuck on latest measurement
White noise instead of expected functionality
4 requests
Sampling rate adjustment
Wave shape tracking
This app analyzes audio signals from your device's microphone and displays both the audio waveform and its amplitude spectrum in real-time. It uses FFT (Fast Fourier Transform) to calculate the spectrum, allowing for detailed frequency analysis.
Key features include simultaneous waveform and spectrum display, selectable FFT sizes, spectrum averaging for smoother results, various frequency weighting options (Flat, dBA, dBC), octave band analysis, and the ability to generate sine, triangle, square, and saw waveforms, as well as white and pink noise.
The app is free to download and use, but it does contain in-app purchases. This suggests that some advanced features or customization options may require a purchase.
The app description does not specify exact compatibility requirements, but it is designed for mobile devices. It supports both portrait and landscape orientations, indicating adaptability to different screen sizes and device types.
You can use this app to visualize the frequency content of any sound captured by your microphone. It's useful for tuning instruments, checking room acoustics, troubleshooting audio equipment, or simply understanding the spectral composition of sounds.
