Spectrum Analyser
Icon Spectrum Analyser

Spectrum Analyser

by keuwlsoft

Audio spectrum analyser for your microphone.

App NameSpectrum Analyser
Developerkeuwlsoft
CategoryMusic & Audio
Download Size2 MB
Latest Version1.43
Average Rating4.26
Rating Count1,615
Google PlayDownload
AppBrainDownload Spectrum Analyser Android app
Screenshot Spectrum Analyser
Screenshot Spectrum Analyser
Screenshot Spectrum Analyser
Screenshot Spectrum Analyser
Audio spectrum analyser for your microphone.

64 up to 8192 frequency divisions (128 to 16384 FFT size).
22 kHz spectrum range (can reduce down to 1 kHz for higher resolution).
FFT Windowing (Bartlett, Blackman, Flat Top, Hanning, Hamming, Tukey, Welch, or none)
Auto-scale or pinch to zoom, drag to pan.
Linear or logarithmic scales.
Peak frequency detection (polynomial fit).
Averaging, Min and Max.
Save CSV data files (uses Write External Storage Permission).
Free or snap to peak cursor.
Octave Bands - Full, half, third, sixth, ninth or twelfth bands.
Weighting – A, C or None (A weighting filters the high and low frequencies according to how the ear perceives sound loudness).
Musical note indicator (green if within 5 cents, orange if within 10 cents).
Auto-scaling microphone input trace.
For best response on slower devices, keep the FFT size low.

More detailed explanation available on website

Recent changes:
v1.43 Updated to use newer code methods to better target and run reliably on devices in 2024. You can now select between audio source (default, mic or unprocessed) in the Weight/Source sub menu.

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