# say # # Converts text to speech. # Say a phrase aloud: say "I like to ride my bike." # Read a file aloud: say -f filename.txt # Say a phrase with a custom voice and speech rate: say -v voice -r words_per_minute "I'm sorry Dave, I can't let you do that." # List the available voices: say -v ? # Create an audio file of the spoken text: say -o filename.aiff "Here's to the Crazy Ones."