************************************************************************* A decibel range represented by integer values 2147483648 to +2147483647, where
2147483648 is Infinity decibels (attenuation),
2147483647 is 32767.99998474 decibels (attenuation), and
+2147483647 is +32767.99998474 decibels (gain). *************************************************************************
The 7th option is suitable for 1724PT 8CH(Envy24HT+VT1616+WM8728) with 24.576 MHz crystal. The 8th option is suitable for 1724PT 8CH(Envy24HT+VT1616+WM8728) with 49.152 MHz crystal.