Festival Speech Synthesis System: - Speech Resource Pages

#include "festival.h"
static LISP utt_rtsynth(LISP utt)
{
EST_Utterance *u = get_c_utt(utt);
// Do format synthesis
return utt;
}
void festival_rsynth_init()
{
proclaim_module("rsynth");
}
festival_def_utt_module("Rsynth_Synth",utt_rsynth,
"(Rsynth_Synth UTT)
A simple formant synthesizer");
...
Integration of the code in optional (and standard directories) is done by automatically creating
`src/modules/init_modules.cc' for the list of standard directories plus those defined as
ALSO_INCLUDE. A call to a function called festival_DIRNAME_init() will be made.
This mechanism is specifically designed so you can add modules to the system without changing anything in the
standard distribution.
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27.2.4 Example 4: adding new LISP objects
This third examples shows you how to add a new Object to Scheme and add wraparounds to allow manipulation
within the the Scheme (and C++) domain.
Like example 2 we are assuming this is done in a new directory. Suppose you have a new object called Widget that
can transduce a string into some other string (with some optional continuous parameter. Thus, here we create a new
file `widget.cc' like this
#include "festival.h"
#include "widget.h" // definitions for the widget class
In order to register the widgets as Lisp objects we actually need to register them as EST_Val's as well. Thus we now
need
VAL_REGISTER_CLASS(widget,Widget)
SIOD_REGISTER_CLASS(widget,Widget)
The first names given to these functions should be a short mnenomic name for the object that will be used in the
defining of a set of access and construction functions. It of course must be unique within the whole systems. The
second name is the name of the object itself.
To understand its usage we can add a few simple widget maniplutation functions