Pro libraries are recorded at minimum . While CD quality is 44.1kHz/16-bit, professional video and film standards require 48kHz. Many premium libraries now offer 96kHz / 24-bit or even 192kHz.
Risers, downers, braaams (Inception horns), slams, and swooshes. These are the "sugar" of trailer sound design.
: Unique recordings, such as the "Liminal Void" collection, which provide niche audio for specific artistic visions. Creative and Technical Workflow