** Lists the possible Priority settings of an SpVoice object.
**
** `http://msdn.microsoft.com/en-us/library/ee125221%28v=vs.85%29.aspx`
enum class SpeechVoicePriority {
** The priority of a normal voice. Text streams spoken by a normal voice are added to the end
** of the voice queue. A voice with SVPNormal priority cannot interrupt another voice.
**
** Value is 0 (0x0)
SVPNormal,
** The priority of an alert voice. Text streams spoken by an alert voice are inserted into the
** voice queue ahead of normal voice streams. An alert voice will interrupt a normal voice,
** which will resume speaking when the alert voice has finished speaking.
**
** Value is 1 (0x1)
SVPAlert,
** The priority of an over voice. Text streams spoken by an over voice go into the voice queue
** ahead of normal and alert streams. An over voice will not interrupt, but speaks over (mixes
** with) the voices of lower priorities.
**
** Value is 2 (0x2)
SVPOver;
}