32-bit plug-ins that you used in previous versions of Audition don't appear in the Effects Menu or Effects Rack in Audition CC.
With the release of Adobe Audition CC, Audition is now a 64-bit program. Upgrade any plug-ins that were designed to work in a 32-bit environment to a 64-bit version or use a bridge.
To use 32-bit VST plug-ins in a Windows environment, install JBridge. You can download the utility from http://jstuff.wordpress.com/jbridge. It's not necessary to wrap the VST plug-ins. To enable it, go to Edit > Preferences > Effects > Scan 32-bit VST Effects Using jBridge.
For Mac OS, rewrap the VST plug-ins through the JBridgeM utility, which you can download from http://jstuff.wordpress.com/jbridgem/. The utility creates new VST files that are used in Adobe Audition
Free Plugins For Adobe Audition
Adobe Audition Plugins Software Adobe Audition plugin v.0.1a This plugin allows CoolEdit / Adobe Audition to read AC3 and DTS files and write AC3 files AC3Filter Audition plugin allows CoolEdit / Adobe Audition to read AC3 and DTS files and write AC3 files. Here are some key features of 'Adobe Audition Plugin. If you are trying to load your Waves plugins in Adobe Audition but you cannot find them, follow these instructions in order to make the plugins available. Step #1 – Verify the license is activated First, check whether the relevant plugin or bundle license/s are activated on your computer or USB Flash Drive. Effects plug-in support is limited to plug-ins that are included with the Adobe Audition CC installation and the VST and Audio Units technologies as they are implemented within the application. Adobe technical support does not support problems due to the use of third-party plug-ins. VST plug-in handling Adobe Audition supports third-party 64-bit audio plug-ins in VST 2.4, VST 3.0 formats for macOS and Windows, and Audio Units for macOS. Note: VSTi and virtual instrument synthesis plug-ins are not supported at this time. To locate plug-ins or manage their visibility in the application, use the Audition Audio Plug-In. Audition isn't a MIDI platform, so virtual instrument plugins that rely on the DAW to supply MIDI notes and triggers won't be compatible. There are some drum plugins that are self-contained as VST, not VSTi, and will work fine. What Audition is best used for is chopping samples to create new beats and loops.
Download Adobe Audition Plugins
Adobe Audition Plugins
The move to a 64-bit environment was designed to improve the use of memory and hardware. (It does not imply that Audition CC captures or edits 64-bit audio.)