Audio Editor

I have created audio within the storyline using text-to-speech. In the next phase, I need to make some content changes, so the audio text has been updated. Now, I need to update the last part of the audio. If I generate the entire audio again, it will take time because there are some mispronunciations at the beginning of the audio. To avoid that, I have separately recorded the last part of the audio text.

 

I clicked on the old text-to-speech audio in the layer to access the audio editor, where I removed the last line. However, when I tried to add the newly generated audio from the media library, I found that the only option available is to import audio from a folder as an MP3. If I export audio from Storyline, the audio quality and pitch differ. Therefore, I would like the option to import audio directly from the media library in the audio editor.