** 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;}