The following audio clips illustrate the progression of language development in children. To listen to an audio clip, click the Audio Clip link. To download the transcription of an audio clip, click the Transcript link. To jump to a specific section, click one of the links below.
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I: Vocalizations
II: Conversations with Male Transcriber and Various Subjects
III: Conversations with Female Transcriber and Various Subjects
I. Vocalizations
1.1: Dialectal speakers
1.2: Single syllable cooing of a 6-month-old child
1.3: Vocalizations of a 6-month-old child
1.4: 9-month-old child vocalizing and blowing bubbles
1.5: 10-month-old child interacting with adult
1.6: 12-month-old child interacting with mother
1.7: 18-month-old child playing with mother
1.8: 24-month-old child interacting with adult
1.9: 28-month-old child playing with mother and grandfather
1.10: 29-month-old child playing with coloring book
1.11: 30-month-old bilingual child playing with father
1.12: 36-month-old child celebrating birthday
1.13: 36-month-old child and adult coloring at a table
1.14: 44-month-old child playing make-believe with dolls and stuffed animals
1.15: 45-month-old bilingual child discussing book with father
1.16: 4-year-old child play-acting as a weather forecaster
1.17: 5-year-old pretending to have a broken arm
1.18: 5-year-old playing with toy horses
1.19: 7-year-old introducing himself
1.20: 9-year-old talking about a scary experience
1.21: 12-year-old talking about birthday
1.22: 12-year-old talking to an adult
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II. Conversations with Male Transcriber and Various Subjects
2.1: Female Subject—10 years, 11 months old; bilingual
2.2: Female Subject—8 years, 6 months old; bilingual
2.3: Female Subject—9 years, 10 months old; bilingual
2.4: Female Subject—4 years, 9 months old; bilingual
2.5: Female Subject—7 years, 9 months old
2.6: Male Subject—9 years, 7 months old
2.7: Female Subject—8 years, 7 months old
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III. Conversations with Female Transcriber and Various Subjects
3.1: Female Subject—1 year, 11 months old
3.2: Female Subject—2 years, 5 months old
3.3: Male Subject—2 years, 11 months old
3.4: Male Subject—4 years, 6 months old
3.5: Female Subject—6 years old
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