Is there a way to smooth random audio dropouts with ffmpeg or Premiere?
Neither Premiere nor ffmpeg support such an operation as far as I know.
But you could edit the audio with another program. Most DAWs (digital audio workstation) have more features to edit audio than video editors.
One such DAW is &quot;Reaper&quot;. It comes with a free trial period, so you can test it for yourself if it's a good fit for your workflow. I'm sure other DAWs offer similar features but I don't use them and hence can't tell you more. I also don't know whether Adobe's Audition can do that.
The steps to solve the problem in Reaper are:

create a new track, insert the media file that contains the audio track
use the action &quot;Item: Auto trim/split items (remove silence)&quot; where you select the mode &quot;split and keep silent areas&quot;. Play around with the other parameters if the splits are done at the wrong place. When splits are created, Reaper automatically adds a crossfade by default (can be changed in Preferences-&gt;Project-&gt;Media Items Defaults-&gt;&quot;Create automatic fade-in/fade-out for new items&quot;).
Render the audio and re-import it into the video editor, if needed.