Different sounds develop across different ages in children. Infants develop cooing sounds first, which consist of open vowel sounds like ‘oo’, ‘aa’ and ‘ee’.
Early 8 sounds
As they approach 12 month of age, children begin babbling and inserting the early 8 sounds (b, p, m, n, t, d, h, w) with their typical utterances sounding like ‘mama’ and ‘papa’.
Middle 8 sounds
At around 3-4 years of age, the middle 8 sounds begin to develop with ‘k’ and ‘g’ sounds emerging first, then ‘ng’, ‘y’, ‘f’ and ‘v’ sounds emerging around 4 years, and finally, ‘ch’ and ‘j’ emerging around 5 years of age.
Late 8 sounds
The late 8 sounds start emerging around 4-8 years of age. This begins with the ‘s’, ‘sh’, and ‘z’ sounds, next are the ‘l’, ‘r’, ‘ch’ and ‘j’ around 5-6 years and finally the ‘th’ sound emerges around 6-8 years of age.
Before children are able to correctly pronounce sounds they display typical speech errors known as phonological processes. These are processes where sounds are dropped off or replaced with other sounds that are easier to say.
What are the common Phonological Processes?
There are also a number of processes that are not as common which are present in typically developing speech, and a number of rare processes produced by children with speech sound disorders. If your child presents with any of the above processes past the age indicated in the right hand column, or other atypical speech sounds, it is important to speak to a speech pathologist. A Speech Pathologist can provide information regarding how you can help your child’s speech development.
You can read more about typical Speech development at www.linguisystems.com – Milestones guide
For more information about speech sound development make an appointment with one of our speech pathologists.