[SuppressMessage("ReSharper", "SuggestVarOrType_SimpleTypes")] //because ReSharper doesn't like this method
private void SetVolume(decimal number) //unmutes the speakers and sets the volume
{
//installed NuGet AudioSwitcher.AudioApi.CoreAudio 3.0.0.1 for this method
CoreAudioDevice speakers = new CoreAudioController().DefaultPlaybackDevice;
if (speakers.IsMuted)
{
speakers.ToggleMute(); //there's no muting this program
}
speakers.Volume = (double)number; //so that's what casting is... handy
}