https://en.m.wikipedia.org/wiki/Microsoft_Speech_API Microsoft Speech API The Speech Application Programming Interface or SAPI is an API developed by Microsoft to allow the use of speech recognition and speech synthesis within Windows applications. To date, a number of versions of the API have been released, which have shipped either as part of a Speech SDK, or as part of the Windows OS itself. Applications that use SAPI include Microsoft Office, Microsoft Agent and Microsoft Speech Server.

Note:

before you can run this file, add first [COM_DOT_NET] extension=php_com_dotnet.dll at the end of your 'php.ini' file Xampp for Windows = (Drive Letter):\xampp\php\php.ini Wamp (Drive Letter):\wamp\bin\apache\apache(version)\bin\php.ini ----(I'm not sure about this one because I'm using Xampp) For Installation of COM() function: http://php.net/manual/en/com.installation.php If you get error(s), refer to this link: https://stackoverflow.com/questions/10678325/class-com-not-found/12050332 Using this code, you can embed text-to-speech which you can use in registration system, attendance system and the like.