Starting with the Creative Cloud versions, Adobe transitioned Audition to a 64-bit only architecture. According to the Adobe Audition System Requirements

A crack is a type of software patch that bypasses the software's licensing and activation process, allowing users to use the software without a valid license. In the case of Adobe Audition CC 2015 32Bit Crack, it is a modified version of the software that can be installed and used without an Adobe account or subscription.

, which is open-source and natively supports older architectures. Audition CC 2015 only uses around 40% of RAM and crackles