Duration is short or long (stop or go-ooooo). Intensity is soft or loud (whisper or yell). Pitch is high or low (chirp or growl)
Use DIP to babble with a baby. Use DIP to rhyme with your toddler. Use DIP for different voices in a story with a preschooler.
When you use DIP you guide children to listen to sounds, enjoy variations in language and experiment with speech.