I don't have personal experience with the 750Ti, but my old graphics card was an nVidia GTX 670. The fans (2) were very quiet during low-load usage.
Basically, I believe that most of the modern cards have speed-controlled fans nowadays, based on GPU loading. Also, be sure your motherboard BIOS setting(s) allow for this as well, basically forcing them in low speed until needed.
My current card is an ATI RX 480 Armor, which specifically is geared for efficient cooling, where basically the fans are off (or extremely low speed) unless needed. So at this point, since Cakewalk uses very little GPU, the discussion of fan noise is moot.