- 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"
+ echo ""
+ echo " -e <engine> TTS engine to use (see 'termux-tts-engines')"
+ echo " -l <language> language to speak in (may be unsupported by the engine)"
+ echo " -p <pitch> pitch to use in speech. 1.0 is the normal pitch,"
+ echo " lower values lower the tone of the synthesized voice,"
+ echo " greater values increase it."
+ echo " -r <rate> speech rate to use. 1.0 is the normal speech rate,"
+ echo " lower values slow down the speech (0.5 is half the normal speech rate),"
+ echo " greater values accelerate it ({@code 2.0} is twice the normal speech rate)."
+ echo ""
+ echo "The text to send can be specified either as arguments or on stdin if no arguments are given."
+ exit 0