wait_factor
                                                    Sets the default end-of-sentence pause duration.
This is used as the default pause for all end-of-sentence breaks unless a different value is explicitly set in markup using the <ESC>\wait=n\ control sequence. See Setting the end-of-sentence pause duration.
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                                                                     Value  | 
                                                                
                                                                     An integer from 0 to 9. The pause duration is this integer times 200 milliseconds.  | 
                                                            
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                                                                     Default  | 
                                                                
                                                                     2 (meaning a pause of 400 milliseconds)  | 
                                                            
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                                                                     How to set  | 
                                                                
                                                                     
                                                                         
                                                                         API—Set as TTS_PARAM_WAIT_FACTOR  | 
                                                            
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                                                                     Usage  | 
                                                                
                                                                     Rarely changed.  |