Windows has a Text-To-Speech feature built-into Powershell.

MacOS has a Text-To-Speech feature called "Say".

The following method can be used on either platform to invoke the system specific Text To Speech mechanism:

C_TEXT($1;$cmd;$in;$out;$err) If (Count parameters=1)  $textToSpeech:=$1  If (Folder separator=":")     // mac     $cmd:="say "+$textToSpeech  Else     //windows     $cmd:="PowerShell -Command \"Add-Type –AssemblyName System.Speech;(New-Object System.Speech.Synthesis.SpeechSynthesizer).Speak('"+$textToSpeech+"');\""  End if  SET ENVIRONMENT VARIABLE("_4D_OPTION_HIDE_CONSOLE";"true")  SET ENVIRONMENT VARIABLE("_4D_OPTION_BLOCKING_EXTERNAL_PROCESS";"false")  LAUNCH EXTERNAL PROCESS($cmd;$in;$out;$err) End If

If the method is saved as TextToSpeech it could be used like this:

TextToSpeech("Wow, it actually works!")