The speech recognition message proposed has been compared to the current SAPI and JSAPI standards.  We summarize the compatibility between the proposed message set and the SAPI and JSAPI standards.  A '*' indicates that an existing standard supports the parameter.

• Message Set
• Messages Issued

Message Set

• reinitialize
• Configure
• Grammar_Control
• Pause
• Resume

reinitialize:

	SAPI	JSAPI	Parameter	Comments
IN:	*	*	:audio_source_type	JSAPI only supports audio input from audio device on host computer.
	*	*	audio_source_param	JSAPI only supports audio input from audio device on host computer.
	*	*	:automatic_gain
	*	*	:energy_floor
	*	*	:language_model
	*	*	:sub_language_model
	*	*	:grammar_type
	*	*	:grammar_file
	*		:grammar_params
	*	*	:n_best
		*	:noise_sensitivity
	*	*	:pause_after_recognition
	*	*	:real_time_setting
	*	*	:threshold
	*	*	:timeout

Configure:

	SAPI	JSAPI	Parameter	Comments
IN:	*	*	:audio_samples	JSAPI currently only reads audio input from the audio device of the host computer.
	*		:background_noise_level
	*		:current_byte
	*	*	:interference
	*	*	:notify_attribute_changes
	*	*	:notify_status
	*	*	:start_end_speech
	*	*	:volume_limits

Grammar_Control:

	SAPI	JSAPI	Parameter	Comments
IN:	*	*	:control
		*	:words
		*	:phones

Pause:

	SAPI	JSAPI	Parameter	Comments
	*	*

Resume:

	SAPI	JSAPI	Parameter	Comments
	*	*

 

Messages Issued

The following message are issued by the recognizer, unless the the :send_notifications parameter of the Configure message is disabled.  When the :send_notifications of the Configure message is enable, the recognition server issues the following messages.

• Attribute_Changed
• Audio Samples
• Background_Noise_Level
• Current_Byte
• Interference
• Recognition_Event
• Results
• Speech_Started
• Speech_Stopped
• Volume_Limits

Attribute_Changed:

	SAPI	JSAPI	Parameter	Comments
OUT:	*	*	:attribute_name
	*	*	:attribute_value_new
	*	*	:attribute_value_old

Audio Samples:

	SAPI	JSAPI	Parameter	Comments
OUT:	*		:num_samples	JSAPI does not support sending and receiving of binary audio data.
	*		:sample_byte_size	JSAPI does not support sending and receiving of binary audio data.
	*		:samples	JSAPI does not support sending and receiving of binary audio data.

Background_Noise_Level:

	SAPI	JSAPI	Parameter	Comments
OUT:	*		:noise_level	JSAPI does not have a message for the current background noise level.

Current_Byte:

	SAPI	JSAPI	Parameter	Comments
OUT:	*		:current_byte	JSAPI does not have a message for the current byte being processed by the recognizer.

Interference:

	SAPI	JSAPI	Parameter	Comments
OUT:	*		:interference	JSAPI will report an interference but does not provide a reason for the interference.

Recognition_Event:

	SAPI	JSAPI	Parameter	Comments
OUT:	*	*	:event_name

Results:

	SAPI	JSAPI	Parameter	Comments
OUT:	*		:score	JSAPI does not report the scores for an utterance.
	*	*	:results

Speech_Started:

	SAPI	JSAPI	Parameter	Comments
	*	*

Speech_Stopped:

	SAPI	JSAPI	Parameter	Comments
	*	*

Volume_Limits:

	SAPI	JSAPI	Parameter	Comments
OUT:	*	*	:volume