«INFANTRU» and «CHILDRU» are the first Russian child speech database. The corpus «INFANTRU» contains longitudinal vocalizations and speech records (n=2967) of 99 children from 3 mos to 36 mos. by long utterances sequences and separate utterances in different psychoemotional state of the child. The database "CHILDRU" contains the records (n=28079, 13956Mb) of 150 children's speech at the age from 4 to 7 years. Speech material are presented by the following situations: spontaneous speech, answers to questions, reading, poetry or retelling a tale, count and alphabet, play. Speech files format is Windows PCM, 22050 Hz, 16 bit. © 2010 ISCA.