SP Voice busy (reference) -> status

reference   integer       specifys the channel you the status from. Use
                                    the reference number obtained from the
                                    SP Open Voice function.
status         integer      indicating if the specified speech channel is still
                                   busy speaking.
                  -2    Reference is invalid (out of range)
                  -1    Already closed or never opened
                    0    Finished
                    1    Busy
                    2    Paused
                   (all other values are reserved for future use.)

Returns the status of the specified speech channel.

Example:
  $err := SP Voice String ($speechref;"Look who is talking!")

   `if an error occured this has no impact HERE.
  While (SP Voice Busy ($speechref) = 1)
    IDLE
  End While