Mobile phone captured audio data of Chinese children, with total duration of 3,255 hours. 9,780 speakers are children aged 6 to 12, with accent covering seven dialect areas; the recorded text contains common children languages such as essay stories, numbers, and their interactions on cars, at home, and with voice assistants, precisely matching the actual application scenes. All sentences are manually transcribed with high accuracy. Format：16kHz/22.05kHz/44.1kHz (mobile phone/microphone), 16bit, uncompressed wav, mono channel Recording environment：quiet indoor environment, without echo Recording content (read speech)：kids' stories; human-machine interaction category; smart home command and control category; numbers; general category Demographics：9,780 speakers totally, with 51% males and 49% females, all children are 6-12 years old Device：Android mobile phone, iPhone; part of the speakers has data recorded by microphone Language：mandarin Application scenarios：speech recognition; voiceprint recognition. Accuracy rate：97% (the accuracy rate of the noise symbols and pinyin is not included)

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ELRA

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