Premiere Elements 2021 Audioausgabe Realtec steht auf "not Working"

[F23M1-Vaio]

Was muss ich tun, damit der Ton wieder aktiviert wird?

[Bill Sprague]

In the Preferences section you can edit the defaults for audio output.   On my computer, it does not follow automatically if you change your computer from speakers to headphones and back.  I have to do it manually.  Another possibility is that you have pressed the mute button on the audio track.