It’s been so long that I have forgotten how to do something, which is to add 30 seconds of silence to the end of an audio file.
The end result is, everything I try, the 30 (or any number) seconds replace the audio file.
I open an mp3 file. It plays just fine.
I edit>move cursor>to end of track.
I generate>silence>enter 30 seconds.
The 2.6 second mp3 clip is replaced by 30 seconds of silence.
I tried selecting all after moving the cursor to end of track, but that made no difference.
Don’t select all. Just move the cursor to the end, then generate silence.
If you select audio, then generate silence, the selected audio is replaced by silence.