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About Spectral Audio
Audio spectrum analyzer with smoothing, hold, peak, zoom, and gain functions.
Spectral Audio is an audio frequency analyzer that uses your phone/tablet mic input.
Data sampled at 44.1 kHz is used to produce length 2048 FFTs and display
an energy spectral density from 0-22 kHz.
Technical Specs
- Frequency Range 0-22 kHz
- 2048 pt FFT
- Frequency resolution 21.5 Hz
- DC component removed
- Hamming Window
- Sampling Rate 44100 samples/sec
- Sampling Period 46 ms
- Smoothing Function: 5 pt triangular moving average
Features
- Linear and Log amplitude
- Smoothing Function
- Peak Identifier
- Hold function
- Local Zoom function (X 8)
- Selectable Gain - 0, 5, 10, 15 dB
What's new in the latest 1.1
Last updated on 2015-08-12
Attempt to fix issue with menu button crash - Note that this app has no menu function but apparently the menu button would cause a crash on some devices. Couldn't duplicate on my test devices, but redid the code to ignore the button press.
Added Linear Amplitude display. Note that the scale is floating for Linear Amplitude meaning that it adjusts to the signal energy amplitude with each render.
Videos and Screenshots
Spectral Audio APK Information
Latest Version
1.1
Category
ToolsAndroid OS
Android 4.0+
File Size
805.1 KB
Developer
Penda SoftwareContent Rating
Everyone
Old Versions of Spectral Audio
805.1 KBAug 12, 2015
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