5.0.0 - sound pressure (decibel) graph added, design and performance improvements added
4.1.0 - refresh rate settings added
4.0.0 - landscape mode, 1s audio signal length and more improvements added
3.1.0 - frequency precision settings added
3.0.0 - 4 x faster tone fix, maximum audio sample frequency used
2.2.0 - tone visibility timeout added
2.1.1 - better "A4 Calibration" dialog
2.1.0 - frequency (power) spectrum enhancements
2.0.0 - A4 Calibration added, Reset Settings added