newbie to the app, anyone helps. thanks in advance
Hello @caesar.cheng18beh8su , welcome to Thunkable! 
You can find more information about the Audio recording and video recording in our docs:
https://docs.thunkable.com/blocks/app-features/sound#sound-file-from-recording
https://docs.thunkable.com/blocks/app-features/camera#record-timed-video
Be sure to check out How to ask Great Questions v2.0, the Community Guidelines, and our Getting Started Guide to make the best of your Thunkable Community experience!