# flite > Speech synthesis engine. > More information: . - List all available voices: `flite -lv` - Convert a text string to speech: `flite -t "{{string}}"` - Convert the contents of a file to speech: `flite -f {{path/to/file.txt}}` - Use the specified voice: `flite -voice {{file://path/to/filename.flitevox|url}}` - Store output into a wav file: `flite -voice {{file://path/to/filename.flitevox|url}} -f {{path/to/file.txt}} -o {{output.wav}}` - Display version: `flite --version`