Update README.md

README.md

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 ### Dataset Description
-This Dataset was recorded by a professional Chinese voice artist, male, the total length is around 40 hours. 
-There are different emotion styles in this dataset, including but not limited to Sad, Calm, Advertising, E-learning. 
+This Dataset was recorded by a professional Chinese voice artist, male, the total length is around 10 hours. 
 For more details, please refer to the link: www.vodataset.com or email [email protected].
 ### Authorization
-The voice artist can sign an authorization with you or your company. The authorization can be of any form, such as paper, voice or video.
+The voice artist can sign an authorization with you. The authorization can be of any form, such as paper, voice or video.
 ### Custom Dataset
 Yes, the artist can record a new dataset with your scripts, and meet your requirements for the dataset.
 ### Audio Format