adobe audition

the creative cloud desktop app linked in @John T Smith 's message contains adobe audition.  it will be listed under "available in your plan" or "apps to try":

if it's listed in apps to try, recheck your account to see if you have an auditon subscription, and to verify your adobe id, https://accounts.adobe.com

if that shows your audition subscription, sign out and then back in to your cc desktop application using the same adobe id used to verify your subscription: http://helpx.adobe.com/creative-cloud/kb/sign-in-out-creative-cloud-desktop-app.html

When you have a subscription
-sign in to your account with your ID and password
-Cloud Manager to install all programs https://www.adobe.com/ie/creativecloud/desktop-app.html
-https://community.adobe.com/t5/get-started/how-to-activate-your-adobe-software/td-p/9636861?page=1