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Get Sound Spectrum old version APK for Android
Visualize sound from your Android's microphone.
Visualize sound from your Android's microphone.
Technical specification:
Recording
☆ Sample rate: 44100 Mono
☆ Chart buffer: 5 seconds
Decibel Level
☆ Reference pressure p0 = 20uPa
☆ decibel equation: 20 x Log10 (RMS/p0)
Frequency Spectrum
☆ Hanning Window
☆ FFT size: 4410 (100 ms)
☆ Overlapping: 80%
☆ Frequency: 1 Hz ~ 4 KHz over 64 groups
Credits:
☆JTransforms for FFT calculations. https://github.com/wendykierp/JTransforms
What's New in the Latest Version 1.07
Last updated on Jul 8, 2016
Support zoom for wave graph
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Sound Spectrum
1.07 by Meerkat Laboratory
Jul 8, 2016