article consonant phonetics 10 human 9 Humans 8 Phonetics 8 speech 7 Speech Perception 6 female 6 human experiment 6 speech perception 6 vowel 6 male 5 Linguistics 4 Speech 4 Speech Acoustics 4 child 4 infant 4 phoneme 4 Acoustics 3 Female 3 Infant 3 Male 3 adult 3 controlled study 3 physiology 3 Adult 2 Child, Preschool 2 Gestures 2 Language 2