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The eSpeak homepage is: http://espeak.sourceforge.net
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Compiling
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=========
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The src directory contains a makefile that produces:
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1. "libspeak.so.1.xx". (where xx is a version number)
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This is a shared library which contains the text to speech engine.
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Its API is described in the file "speak_bin.h".
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2. "espeak" binary. This is a small command-line program which is a front
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end to the libespeak library, which it needs.
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3. "speak" binary. This is a command-line program which contains the
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text to speech engine. It does not use the libespeak library.
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When run, the "speak" and "espeak" programs expect to find the espeak-data
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directory either in the user's home directory, or if not there, in /use/share.
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Portaudio.
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==========
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The "speak" program uses the PortAudio sound interface library. There are two
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versions, V18 and V19 and their APIs are different. Some Linux distributions
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use V18 (eg. Debian, Ubuntu) others (eg. SuSe) use V19.
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To compile to use a particular version of the PortAudio library, first copy
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either portaudio18.h or portaudio19.h to portaudio.h.
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If you don't need eSpeak to output sound, but only to produce WAV files,
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then you can remove or comment out the following line in speech.h.
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This will mean that eSpeak doesn't use any PortAudio functions.
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#define USE_PORTAUDIO
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Compiling Data
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==============
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You can modifiy spelling-to-phoneme rules and exceptions and re-compile this
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data with the speak program (see docs/dictionary.html). In summary, edit
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the dictsource/**_rules and dictsource/**_list files and compile using:
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espeak --compile=**
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where ** is the language code (eg. en for English).
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In order to modify the sounds or other characteristics of phonemes, or
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to add additional phonemes, another program "espeakedit" is needed. This
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is provided in a separate package.
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PowerPC and Big-Endian Processors
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=================================
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The compiled data in the espeak-data directory is not binary compatible between
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processors with different byte ordering. For a PowerPC or other big-endian
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processor use must use data which has been compiled (using espeakedit) on
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a big-endian processor.
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