If you don't need Photoshop or Premiere, you can subscribe to Audition by itself for a much lower monthly fee than the full Creative Cloud suite.
Adobe Audition is a professional digital audio workstation (DAW) developed by Adobe Inc. The latest version, Adobe Audition 15, offers a wide range of features and tools for audio editing, mixing, and restoration. In this write-up, we'll explore the key features and improvements in Adobe Audition 15, highlighting what makes it a better choice for audio professionals. adobe+audition+15+full+better
: Contrast the Waveform and Multitrack editors. If you don't need Photoshop or Premiere, you
D-reverb, also found under noise reduction/restoration, can effectively reduce echo in recordings, with adjustable intensity. Mike Russell Adobe Audition 15