Win7、Win10自带Windows Speech SDK 5.4版本（XP需装Windows Speech SDK 5.1，http://www.microsoft.com/download/en/details.aspx?id=10121）

　　procedure TForm1.btnSpeakClick(Ser: TObject);

　　begin

　　SpVoice1.Speak(Memo1.Text,SVSFlagsAsync);

　　//前面播放完了再播放，

　　//if SpVoice1.Status.RunningState = SRSEDone then //SpVoice1.Speak(Memo1.Text,SVSFlagsAsync);

　　;