Contribute correction: Speech Synthesis

  ______   _    _    _____     _    _   
 /_____// | || | || |  __ \\  | || | || 
 `____ `  | || | || | |  \ || | || | || 
 /___//   | \\_/ || | |__/ || | \\_/ || 
 `__ `     \____//  |_____//   \____//  
 /_//       `---`    -----`     `---`   
 `-`