espeak-ruby is small Ruby API for utilizing ‘espeak’ and ‘lame’ to create Text-To-Speech mp3 files.

• eSpeak is a compact open source software speech synthesizer for English and other languages, for Linux and Windows.

• LAME is a high quality MPEG Audio Layer III (MP3) encoder licensed under the LGPL.

gem install espeak-ruby

require 'rubygems'
require 'espeak-ruby'

include ESpeak

# Creates hello.mp3 file
espeak("hello.mp3", :text => "Hello World") 

# Creates /home/espeak/hello-de.mp3 file
espeak("/home/espeak/hello-de.mp3", :text => "Hallo Welt", :voice => "de")

Currently only subset of espeak features is supported.

:voice => 'en',   # use voice file of this name from espeak-data/voices
:pitch => 50,     # pitch adjustment, 0 to 99
:speed => 170     # speed in words per minute, 80 to 370

These are default values, and they can be easily overridden:

espeak("zdravo.mp3", :text => "Zdravo svete", :voice => "sr", :pitch => 90, :speed => 200)

• espeak.sourceforge.net

• lame.sourceforge.net/index.php

• espeak-http - Micro web app for Text-To-Speech conversion via HTTP powered by Ruby, Sinatra, lame, espeak and espeak-ruby

Author: Dejan Simic