termux-packages/packages/termux-api/termux-tts-speak

#!/system/bin/sh

set -u

PARAMS=""

show_usage () {
	echo "usage: termux-tts-speak [OPTIONS]"
	echo ""
	echo "Speak stdin input with a system text-to-speech (TTS) engine."
	echo "Find out about available engines by executing 'termux-tts-engines'."
	echo "  -e, --engine <engine>        TTS engine to use"
	echo "  -l, --language <language>    language to speak in (may be unsupported by the engine)"
	echo "  -p, --pitch <pitch>          pitch to use in speech" 
	echo "  -r, --rate <rate>            rate to use in speech"
}

O=`busybox getopt -q -l engine: -l help -l language: -l pitch: -l rate: -- e:hl:p:r: "$@"`
if [ $? != 0 ] ; then show_usage; exit 1 ; fi
eval set -- "$O"
while true; do
case "$1" in
	-e|--engine) PARAMS="$PARAMS --es engine $2"; shift 2;;
	-l|--language) PARAMS="$PARAMS --es language $2"; shift 2;;
	-p|--pitch) PARAMS="$PARAMS --ef pitch $2"; shift 2;;
	-r|--rate) PARAMS="$PARAMS --ef rate $2"; shift 2;;
	-h|--help) show_usage; exit 0;;
	--)	shift; break;;
	*)	echo Error; exit 1;;
esac
done

termux-api TextToSpeech $PARAMS