Titanfall has a 48GB install on PC due to the demands of its uncompressed audio, Respawn has revealed.
Speaking to Eurogamer, lead engineer Richard Baker explained that the data takes up so much more space on PC as it's designed to work with lower end machines. In contrast, the Xbox One version of the game is roughly 17GB as there's audio decode built into the hardware.
"Yeah, basically when you download the game or the disc itself, it's a lot smaller than that," Baker explained. "We have audio we either download or install from the disc, then we uncompress it. We probably could have had audio decompress off disc but we were a little worried about min spec and the fact that a two-core machine would dedicate a huge chunk of one core to just decompressing audio.
"So... it's almost all audio... On a higher PC it wouldn't be an issue. On a medium or moderate PC, it wouldn't be an issue, it's that on a two-core [machine] with where our min spec is, we couldn't dedicate those resources to audio," he concluded.
This also explains why Titanfall's minimum specs are so light.