Spectral Audio description

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