Hi Dr Hsu,
I have attached a 12MB video file and mailed to email@example.com
, please let me know if you are able to receive it as the file is large.
The thumping happened at 00:06 recording time, this happened when the ship crashed landed and hit on something hard.
It also happened during a cannon firing in one of Jurassic Park movie, but not in this recording, if you wish to hear this I can also record it.
Hope the email gets to you.
Thank you and best regards,