"Is the blogger asking how to add audio fade in DaVinci"?

1. First, import the audio file into Leonardo da Vinci, drag and drop it on the timeline.

2. Secondly, select the audio file, and then find the "Volume" option in the "Audio" panel on the right.

3. Then in the "Volume" option, you can see the "Fade In" and "Fade Out" options. Set to desired fade-in and fade-out time respectively.

4. Finally, use the "Curve" option to adjust the speed and shape of the fade. Click the "Curves" option and select the "Fade In" or "Fade Out" option in the pop-up window. Then, use your mouse to drag points on the curve to adjust the shape of the fade.