After installation, open your Adobe Audition and load an audio file.
Then find window -> extensions -> audiocut in the menu bar.
In the open panel, click on [Get Subtitle] button, and after a period of time, you
will see the subtitles of the audio.
Choose a sentence, or after selecting a word, you can silence it. And repeat this
step.
Finally, use the built-in Audition function Effects -> Diagnostics -> Delete Silence
to complete the task.