It isn't mentioned and I don't expect much other then inertia of the device itself. There is a servo mechanism assuring the head follows the tracks on tape. I

It isn't mentioned and I don't expect much other then inertia of the device itself. There is a servo mechanism assuring the head follows the tracks on tape. Improvements on that are mentioned. I don't think it matters whether the tape (necessarily) or the environment vibrates or whether that distinction is meaningful.