# install
brew install espeak

espeak "Nice to meet u?"

# female #5
espeak -v f5 "Nice to meet u?"

# male #2
espeak -v m2 "Nice to meet u?"

# 中文
espeak -v zh "中文"

# slow
espeak -s 80 -v m2 "Nice to meet u?"

# read and write a file
espeak -f foo.txt -w foo.wav