Some options:

down sample [8, 64, 34, 34] → [8, 320, 16, 16]
up sample [8, 320, 16, 16] → [8, 320, 32, 32]
repeat [8, 320, 16, 16] → [8, 320, 32, 32], then crop [8, 64, 34, 34] → [8, 64, 32, 32]

and so on…
It depends your task…