asterisk/contrib
Scott Griepentrog d6472d96b3 Scripts: check file versions of Asterisk and dependencies
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ASTERISK-25376 #close
Reported by: Ashley Sanders

Change-Id: Ib0642d0fb96712476f59760d6d137a24633fe2d6
2015-09-25 15:07:44 -05:00
..
ast-db-manage pjsip: Add rtp_timeout and rtp_timeout_hold endpoint options. 2015-07-24 12:43:43 -03:00
editors contrib/editors: Fix vim syntax highlighting of comments in config files 2015-05-07 19:37:42 +00:00
init.d Update init.d scripts to handle stderr; readd splash screen for remote consoles 2013-01-21 20:41:12 +00:00
scripts Scripts: check file versions of Asterisk and dependencies 2015-09-25 15:07:44 -05:00
thirdparty remove extraneous svn:executable properties 2005-11-29 18:24:39 +00:00
unistimLang Add French translation for chan_unistim phones on-screen menus. 2012-07-16 07:34:12 +00:00
upstart Change all refererences to 1.6.3 to be 1.8, since that will be the next feature release 2009-12-21 18:51:17 +00:00
utils Fix typo's (retrieve, specified, address). 2015-01-23 15:13:08 +00:00
Makefile Astobj2: Allow reference debugging to be enabled/disabled by config. 2015-04-27 18:37:26 -04:00
README.festival remove extraneous svn:executable properties 2005-11-29 18:24:39 +00:00
asterisk-doxygen-header remove extraneous svn:executable properties 2005-11-29 18:24:39 +00:00
asterisk-ices.xml remove extraneous svn:executable properties 2005-11-29 18:24:39 +00:00
dictionary.digium Add support for logging CDR recrods to a radius server (issue #6639, phsultan) 2006-05-20 22:30:05 +00:00
festival-1.4.1-diff remove extraneous svn:executable properties 2005-11-29 18:24:39 +00:00
festival-1.4.2.diff remove extraneous svn:executable properties 2005-11-29 18:24:39 +00:00
festival-1.4.3.diff remove extraneous svn:executable properties 2005-11-29 18:24:39 +00:00
festival-1.95.diff remove extraneous svn:executable properties 2005-11-29 18:24:39 +00:00
i18n.testsuite.conf Merged revisions 170671 via svnmerge from 2009-01-23 20:23:00 +00:00
valgrind-RedHat-8.0.supp remove extraneous svn:executable properties 2005-11-29 18:24:39 +00:00
valgrind.supp Line 24 missed in compatibility fix in revision 233577 2010-04-26 19:05:47 +00:00

README.festival

app_festival is an application that allows one to send text-to-speech commands
to a background festival server, and to obtain the resulting waveform which
gets sent down to the respective channel. app_festival also employs a waveform 
cache, so invariant text-to-speech strings ("Please press 1 for instructions") 
do not need to be dynamically generated all the time. 

You need : 

1) festival, patched to produce 8khz waveforms on output. Patch for Festival
1.4.2 RELEASE are included. The patch adds a new command to festival 
(asterisk_tts). 

It is possible to run Festival without patches in the source-code. Just
add this to your /etc/festival.scm or /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)))

[See the comment with subject "Using Debian
 festival >= 1.4.3-15 (no recompiling needed!)" on
 http://www.voip-info.org/wiki-Asterisk+festival+installation for the
 original mentioning of it]

2) You may wish to obtain and install the asterisk-perl
module by James Golovich <james@gnuinter.net>, from 
either CPAN, or his site: http://asterisk.gnuinter.net,
as this contains a good example of how variable text
can be tts'd via asterisk, namely the examples/tts-*.agi
files there. It has been noted that the current expression
evaluation capabilities of asterisk are not best suited
for the generation and manipulation of text. AGI scripting
can be ideal for these sorts of needs. For simpler usage,
fixed, pre-recorded messages may be more amenable for your
purposes.

3) Before running asterisk, you have to run festival-server with a command 
like : 

/usr/local/festival/bin/festival --server > /dev/null 2>&1 &