By CyberLink Learning Center
Audio Ducking is a powerful new feature in PowerDirector 16. Audio Ducking can automatically optimize the audio mix in videos that contain dialogue or narration by fading backing music tracks so that speech can be clearly heard.
Drag and drop your video and background music onto the timeline. They should appear on two different tracks.
Select the video or audio clip on the timeline that you want to have a lower volume and click on Tools > Audio Ducking. In this case we have selected the background music track.
In the Audio Ducking window, you can customize the following controls:
Select the Apply to all clips on the same track option if you want the audio ducking applied to all the clips in your video project timeline. Once finished click OK to apply.
On your timeline you should now be able to see that the audio levels of the background music track are lower when there is narration on the main video clip.