2. Cancel the audio-video link, select audio, and right-click to change the duration to 70% to slow down the speech.
3. If not, you can delete the video and add the pitch shifter effect to the audio.
4. Open the effect control, click Edit, and change the preset to darkseid.
Open the audio panel, click Dialogue, pull the panel to the bottom, check the clip volume, and increase the volume appropriately.
Click play, and you can hear the sound effect of the original normal voice turning into a depressed monster.