iSpring Converter Pro 9 features the built-in Audio Editor. It allows you to adjust your audio narration right within your iSpring program. You don't have to use any third-party software to trim clips, remove noise or apply fade effects. 

To access the Audio Editor:
- Click Manage Narration on the iSpring Converter Pro 9 toolbar.
 
  
 
 
- Select your audio on the timeline.
 
  
 
 
- Click Edit Clip on the toolbar.
 
  
Now, you can enjoy all its capabilities: