The two boxes (“Defined Tempo of Audio File” and “Defined Time Signature of Audio File”) are both part of the Sample Editor, and for some reason the values inside couldn’t be edited anymore (as a result of audio bounce). As it’s stated here, the only way to make the boxes editable again, is to remove the sample from Audio Pool, save the project, restart Cubase, and then import the audio file back. Also, a post suggests that bouncing the audio sample would make the boxes editable again, but it appears to me that bouncing is exactly the cause why the boxes become uneditable. I just wanted to know if there’s anything one can do to prevent the boxes from becoming uneditable.