Text to Speech Application

TTS is a process to convert text to the corresponding wave file. In order to simplify the process of call automation, Xtend IVR introduces a sample script for text to speech recognition system. The automated IVR can play the text file using the TTS engine. Various SAPI XML tags are used in the SPEAK command to implement tone variations and to handle several number-to-speech conversions.

Download the evaluation version of Xtend IVR and install the telephony application in your system. Run the sample script from the Script Editor. Click here to refer the code.

The following XML tags are used in this script.

Download the source file for the Text to Speech Application

***************************************************************************
* Script: tts.dt
* Notes : Just speaks out strings containing speech tags. 
*        Details available in Microsoft SAPI documentation
*        Need TTS engines to be installed and configured in your system
***************************************************************************

MAIN:
	
	answer 1
	
	speak "Welcome. A variety of speak commands are given below."
	
	speak 'The following words are spelled out. <spell>These words should be
								spelled out</spell>'
	
	speak 'One Thousand milliseconds of silence <silence msec="1000"/> just occurred.'
	
	'Use PartOfSp tag to enable the voice to pronounce a word with multiple 
	'pronunciations correctly depending on its part of speech.
	speak 'The following text differentiates the word "record" depending on its
		parts of speech. Did you <partofsp part="verb"> record </partofsp> that
		<partofsp part="noun"> record </partofsp>?'
	
	speak '<volume level="50">This text should be spoken at volume level fifty.
		<volume level="80">This text should be spoken at volume level eighty.
		</volume></volume><volume level="100"/>All text which follows should be
		spoken at volume level one hundered.'
	
	speak '<voice required="Language=409;gender=female">A U.S. English female voice
		should speak this.</voice><lang langid="413">A British English voice
		should speak this.</lang>'
	
	speak '<SAPI>This text is spoken without emphasis. This text is spoken <EMPH>
		with emphasis.</EMPH></SAPI>'
	
	speak 'Date is spoken now as month, day, year. <context id="date_mdy">
		03/04/2001 </context>'
	'should be March fourth, two thousand one.
	 
	speak 'Date is spoken now as day, month, year. <context id="date_dmy">
		03/04/2001 </context>'
	' should be April third, two thousand one.
	 
	speak 'A Cardinal number is spoken next. <context ID = "number_cardinal">3432
		</context>'
	'will be normalized to "three thousand four hundred thirty two"
	
	speak 'The following Number is spoken as digits. <context ID = "number_digit">
		3432</context> '
	'will be normalized to "three four three two"
	
	speak 'A Fractional number is spoken now. <context ID = "number_fraction">3/15
		</context> '
	'will be normalized to "three fifteenths" or "three over fifteen"
	
	speak 'Following is a Decimal Number. <context ID = "number_decimal">423.1243
		</context> '
	'will be normalized to "four hundred and twenty three point one two four three"
	
	speak 'A pronunciation for Currency follows. <context ID = "currency">$34.90
		</context> '
	'will be normalized to "thirty four dollars and ninety cents"
	
	speak '<pitch absmiddle="5">This text should be spoken at pitch five.<pitch 
		absmiddle="-5">This text should be spoken at pitch negative five.</pitch>
		</pitch><pitch absmiddle="10"/>All following text are spoken at pitch 10'
	
	speak '<rate absspeed="5">This text should be spoken at rate five.<rate 
		absspeed="-5">This text should be spoken at rate negative five.</rate>
		</rate><rate absspeed="2"/>All following text are spoken at rate two.'
	
	speak "Good bye."
		
	hangup
	goto MAIN

* User has hung up
ONHANGUP:
	hangup
    goto MAIN

* An error has occurred
ONSYSTEMERROR:
    log $error
    display $error
    hangup
    goto MAIN

*End of Script