ABSTRACT
When a child is acquiring speech, he/she learns to pronounce vowels and consonants, combining them into meaningful sounds. In our audible frequency range, the vowels (a, e, i, o, and u) are low-frequency tones, whereas consonants are high tones. If a child has a high-frequency hearing loss, the vowels will be heard but the consonants will be inaudible or seem to be indistinct or distorted.
