About Sound Spectrum
Visualize sound from your Android's microphone. Technical specification: Recording ☆ Sample rate: 44100 Mono ☆ Chart buffer: 5 seconds Decibel Level ☆ Reference pr
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
Previous Versions
Here you can find the changelog of Sound Spectrum since it was posted on our website on 2019-09-13 12:18:41.
The latest version is 1.07 and it was updated on 2024-04-22 10:01:59. See below the changes in each version.
Sound Spectrum version 1.07
Updated At: 2016-07-08
Changes: Support zoom for wave graph
Disclaimer
Official Google Play Link
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