Full dictionary is not installed for ‘zh’ Can’t access ® file ‘zh_rules’

apt-get install libpulse-dev
wget http://sourceforge.net/projects/e-guidedog/files/eSpeak-Chinese/1.47.11/espeak-1.47.11-source.tar.xz
tar xJvf espeak-1.47.11-source.tar.xz
cd espeak-1.47.11-source/dictsource
espeak --compile=zh
apt-get install espeak
espeak --compile=zh
espeak -vzh '你好'

ref http://askubuntu.com/questions/178736/generate-mp3-file-from-espeak

espeak -vzh '你好' --stdout | ffmpeg -i - -ar 44100 -ac 2 -ab 192k -f mp3 helo.mp3