article human speech human experiment 98 female 82 male 80 Humans 79 adult 69 Speech 46 Female 44 Male 42 speech perception 35 Adult 34 Speech Perception 34 controlled study 34 language 32 physiology 30 Young Adult 24 young adult 24 Language 23 child 22 phonetics 22 Phonetics 21 Speech Acoustics 20 clinical article 19 vowel 16 adolescent 15 learning 15 Adolescent 14 hearing 13