Open Source Toolkit Documentation:

The MITRE Terminal PTT Server

MITRE provides a push to talk server which sends a message to indicate that an audio server should start listening.

• Status
• Usage
• Message set
• Messages issued
• Known bugs

Status

History and plans

Version history

• 1.0 on 1/25/02

Usage

Command line

Default port

Command line arguments

static char *oas[] = {
  "-push_to_talk", "use push to talk (default)",
  "-activate_now", "don't wait for notification of the utterance ID",
  "-auto", "don't use push to talk",
  NULL
};

Message set

• reinitialize
• show_partial
• show_input
• notify_done
• update_utterance_id

reinitialize sets up the push-to-talk prompt. It returns the frame it's passed.

show_partial is intended to be used to print out a partial SR result. It returns the frame it's passed.
 

	parameter	type	optional	depends on	description/constraints
IN:	:partial_string	string			partial SR result

This dispatch function returns a frame.

show_input is intended to be used to print out an SR hypothesis. It returns the frame it's passed.
 

	parameter	type	optional	depends on	description/constraints
IN:	:input_string	string			hypothesis string
	:hyp_id	integer			hypothesis ID

This dispatch function returns a frame.

notify_done is called to inform the server that SR is completed. If the server is waiting for a new utterance ID notification to print out the next prompt, the prompt will now be printed out. It returns the frame it's passed.
 

	parameter	type	optional	depends on	description/constraints
IN:	:utterance_id	integer	yes		utterance ID to use for the next input

This dispatch function returns a frame.

update_utterance_id is called to provide a new utterance ID to the server. If the server is waiting for a new utterance ID notification to print out the next prompt, the prompt will now be printed out. It differs from notify_done only in that notify_done prints out "Recognition is done". It returns the frame it's passed.
 

	parameter	type	optional	depends on	description/constraints
IN:	:utterance_id	integer	yes		utterance ID to use for the next input

This dispatch function returns a frame.

Messages issued

{c main
   :audio_ready 1
   :utterance_id <optional: integer>
}

Known bugs