---
extra_gated_prompt: Please fill out the following information to verify your identity.
extra_gated_fields:
  Name: text
  Phone Number: text
  Email: text
  Organization or School: text
  Major: text
  Education level: text
  Identity:
    type: select
    options:
      - Student
      - Teacher
      - Employee
extra_gated_heading: "Acknowledge license to accept the repository"
extra_gated_description: "Please fill in the information truthfully and keep your phone line clear. After verifying your information, you will be able to use our dataset."
extra_gated_button_content: "Acknowledge license"
task_categories:
- voice-activity-detection
- automatic-speech-recognition
- audio-to-audio
language:
- zh
- en
license:  cc-by-nc-nd-4.0
---


### Data Description

Age: 3-7 years old, balanced across all ages

Gender: Balanced between males and females

Accent: Mandarin accent

Recording environment: Background environment is quiet, SNR>20 dB

Number of participants: Around 300 people, 150 from southern China and 150 from northern China

Distance from microphone: Less than 20cm

Style: Normal speaking speed and volume, realistic and natural

Equipment: Various types of mobile phones

Content: Recording texts focus on education and entertainment topics, covering daily conversations in school, family settings, including but not limited to children's stories, movies and TV shows, role-playing, and everyday family dialogues, while balancing phonemes.

Number of texts: There are 17340 non-repeated texts, with an average of 8 characters per line

Format: Audio files are saved in 16k采样率.wav format (file name is unique code); Texts are saved in excel format

Quantity: Total length is 153.35h, total number of lines is 154127


## Directory Structure

```
root_directory/

├── audio/     

│   ├── audio1.wav

```