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# Speak.activity
# A simple front end to the espeak text-to-speech engine on the XO laptop
# http://wiki.laptop.org/go/Speak
#
# Copyright (C) 2008 Joshua Minor
# This file is part of Speak.activity
#
# Parts of Speak.activity are based on code from Measure.activity
# Copyright (C) 2007 Arjun Sarwal - arjun@laptop.org
#
# Speak.activity is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Speak.activity is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Speak.activity. If not, see <http://www.gnu.org/licenses/>.
import pygst
pygst.require("0.10")
import gst
import re, os
from gettext import gettext as _
# Lets trick gettext into generating entries for the voice names we expect espeak to have
# If espeak actually has new or different names then they won't get translated, but they
# should still show up in the interface.
expectedVoiceNames = [
_("Brazil"),
_("Swedish"),
_("Icelandic"),
_("Romanian"),
_("Swahili"),
_("Hindi"),
_("Dutch"),
_("Latin"),
_("Hungarian"),
_("Macedonian"),
_("Welsh"),
_("French"),
_("Norwegian"),
_("Russian"),
_("Afrikaans"),
_("Finnish"),
_("Default"),
_("Cantonese"),
_("Scottish"),
_("Greek"),
_("Vietnam"),
_("English"),
_("Lancashire"),
_("Italian"),
_("Portugal"),
_("German"),
_("Whisper"),
_("Croatian"),
_("Czech"),
_("Slovak"),
_("Spanish"),
_("Polish"),
_("Esperanto")
]
_allVoices = {}
class Voice:
def __init__(self, language, name):
self.language = language
self.name = name
friendlyname = name
friendlyname = friendlyname.replace('-test','')
friendlyname = friendlyname.replace('_test','')
friendlyname = friendlyname.replace('en-','')
friendlyname = friendlyname.replace('english-wisper','whisper')
friendlyname = friendlyname.capitalize()
self.friendlyname = _(friendlyname)
def allVoices():
if len(_allVoices) == 0:
for i in gst.element_factory_make('espeak').props.voices:
name, language = i.split(':')
if name in ('en-rhotic','english_rp','english_wmids'):
# these voices don't produce sound
continue
voice = Voice(language, name)
_allVoices[voice.friendlyname] = voice
return _allVoices
def defaultVoice():
"""Try to figure out the default voice, from the current locale ($LANG).
Fall back to espeak's voice called Default."""
def fit(a,b):
"Compare two language ids to see if they are similar."
as_ = re.split(r'[^a-z]+', a.lower())
bs = re.split(r'[^a-z]+', b.lower())
for count in range(0, min(len(as_),len(bs))):
if as_[count] != bs[count]:
count -= 1
break
return count
try:
lang = os.environ["LANG"]
except:
lang = ""
best = _allVoices[_("Default")]
for voice in _allVoices.values():
voiceMetric = fit(voice.language, lang)
bestMetric = fit(best.language, lang)
if voiceMetric > bestMetric:
best = voice
print "Best voice for LANG %s seems to be %s %s" % (lang, best.language, best.friendlyname)
return best
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