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diff --git a/speaker.py b/speaker.py
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+++ b/speaker.py
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+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+#
+# Code released in the Public Domain. You can do whatever you want with this package.
+# Look at NOTES file to see how to adapt this program.
+# Originally written by Pierre Métras <pierre@alterna.tv> for the OLPC XO laptop.
+
+
+"""
+Speak aloud the text given in the XO configured language.
+
+Controls the espeak program available on the OLPC XO laptop.
+"""
+
+import sys
+import os
+
+from pgettext import pgettext as _p
+
+
+class Speaker:
+    """Speak aloud the given text.
+    """
+
+    """espeak parameter: language pitch.
+    """
+    # TRANS: The language pitch (range [0 - 99], default 50 for English)
+    # Look at http://espeak.sourceforge.net/commands.html for details
+    PITCH = _p("espeak-pitch", "50")
+
+
+    """espeak parameter: diction speed (average words per minute).
+    """
+    # TRANS: The diction speed, in average words per minute (range [80 - 390], default 170 for English).
+    # Look at http://espeak.sourceforge.net/commands.html for details
+    SPEED = _p("espeak-speed", "170")
+
+
+    """espeak parameter: word gap in units of 10 ms.
+    """
+    # TRANS: The pause duration between words, in units of 10 ms.
+    # Look at http://espeak.sourceforge.net/commands.html for details
+    WORD_GAP = _p("espeak-wgap", "0")
+
+
+    """espeak parameter: the language and voice variant.
+    """
+    # TRANS: The language and voice variant
+    # Look at http://espeak.sourceforge.net/commands.html for details, and
+    # http://espeak.sourceforge.net/languages.html to see if your language is supported.
+    VOICE = _p("espeak-voice", "en")
+
+
+    def speak(self, text):
+        """Speaks aloud the given text.
+        """
+        text = text.replace("\"", "\\\"")
+        child = os.popen("espeak -p%s -s%s -g%s -v%s \"%s\"" % (Speaker.PITCH, Speaker.SPEED, Speaker.WORD_GAP, Speaker.VOICE, text))
+        data = child.read()
+        err = child.close()
+        if err:
+            print "espeak terminated with return code %d" % err
+
+
+if __name__ == "__main__":
+    s = Speaker()
+    s.speak("It's two o'clock in the morning")
+    s.speak("It's seven hours and thirty-four minutes PM")
+    #s.speak("Il est quinze heures et vingt-neuf minutes")
+    #s.speak("vingt-deux heures dix-huit minutes")
+