Festival:
apt-get install festival
apt-get install festvox-kallpc16k
You need to add to /usr/share/festival/festival.scm:
(define (tts_textasterisk string mode)
"(tts_textasterisk STRING MODE)
Apply tts to STRING. This function is specifically designed for use in server mode so
a single function call may synthesize the string. This function name may be added to
the server safe functions."
(let ((wholeutt (utt.synth (eval (list 'Utterance 'Text string)))))
(utt.wave.resample wholeutt 8000)
(utt.wave.rescale wholeutt 5)
(utt.send.wave.client wholeutt)))
festival.conf
-----------------------------
[general]
host=localhost
port=1314
festivalcommand=(tts_textasterisk "%s" 'file)(quit)\n
but in extensions.conf when i call the festival app i put the text
'quoted' like this:
exten => 003,1,Festival('Hello asterisk user, how are you today?') ;
<-- note the quotes ... exten => 003,2,Wait(1)
exten => 003,3,Hangup()
From the command-line type 'festival --server'
Then restart Asterisk
This configuration reads a text file (limiting it to 130 characters or less) and then speaks the message to the caller.
exten => 3200,1,ReadFile(test=/tmp/test.txt,130)
exten => 3200,n,Festival(${test})
exten => 3200,n,Hangup
Example of a Auto Attendant menu.
[MainMenu]
exten => s,1,SetVar(NUMINVALID=0)
exten => s,2,Setvar(NUMTIMEOUTS=0)
exten => s,3,Background(sales_press_one)
exten => s,4,Background(support_press_two))
exten => s,5,ResponseTimeout(5)
exten => s,6,DigitTimeout(2)
exten => t,1,SetVar(NUMTIMEOUTS=$[${NUMTIMEOUTS} + 1])
exten => t,2,Gotoif($[${NUMTRIES} < 2]?s,3)
exten => t,3,Background(vm-goodbye)
exten => t,4,Hangup()
exten => i,1,SetVar(NUMINVALID=$[${NUMINVALID} + 1])
exten => i,2,Gotoif($[${NUMINVALID} < 4]?:10)
exten => i,3,Background(invalid)
exten => i,4,Goto(s,2)
exten => i,10,Playback(vm-goodbye)
exten => i,11,Hangup()
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