

Audio Spectrum Analyzer
Spectrum Spectogram Analyzer was designed with accuracy and easy of use in mind. It can be used for monitoring or measuring environmental sound or noise; help tuning instruments; timing short sound events; and educational purpose.
Cost / License
- Free
- Open Source (Apache-2.0)
Platforms
- Android
- F-Droid
Features
- Real time spectrogram
- Spectrogram view
- Real time spectral analysis
- Audio Analysis
Audio Spectrum Analyzer News & Activities
Recent activities
RemovedUser added Audio Spectrum Analyzer as alternative to SignalView
Audio Spectrum Analyzer information
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What is Audio Spectrum Analyzer?
Spectrum Spectogram Analyzer was designed with accuracy and easy of use in mind. It can be used for monitoring or measuring environmental sound or noise; help tuning instruments; timing short sound events; and educational purpose.
Features:
- No Ads.
- With log or linear frequency axis.
- Can label frequency axis using music pitch note.
- Support all possible sampling rates and almost all recorder sources of your device.
- Graph with nice grid lines and labels, easy to operate.
- FFT sample size range from 512 to 8192. Using half-overlapped (adjustable) time window to increase time resolution.
- Various window functions provided, for different frequency resolution and dynamical range.
- Peak frequency detection (in unit of Hz and note+cent), with a moderate accuracy (FFT + interpolation).
- With dB or A-weighting dB (dBA).
- Can record the audio in wav (PCM) format.
- Pinch to zoom, drag or swipe to move, long-press to place cursor, double touch to reset zoom.
Notes: May need some knowledge of discrete Fourier transform and spectrum analysis to use it well. The actual accuracy mainly depends on your device. No calibration interface provided.




