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The first stage of sound development is called the stage. All the sounds heard are either reflexive or sounds of discomfort. During the second stage, , typically beginning at months old and ending at months old, comforting sounds and vocal play can be heard as the child starts experimenting with the sounds that they can make. occurs between and 12 months of age. Extended sounds with varied intonation resembling sentences and repeated patterns can be observed. The final pre-vocal stage, , which generally happens between and 12 months, is when sounds start to have meaning. The child is on the cusp of learning to speak words. Sounds are emphasised by NVCs.