Not necessarily. Turntables with a built-in USB output can be connected directly to the Raspberry Pi. For turntables with a standard phono or line output, you’ll need a low-cost USB audio adapter such as the Behringer UFO202 (around £20). CD players and other optical outputs can connect via an inexpensive SPDIF-to-USB dongle. For tape decks and other analogue sources, using a USB line card (the Behringer UFO202 can do that too).
