Silent/ASMR Series Automation (No Voiceover)

I want to be able to create automatic video series that are completely silent (no voiceover) and focused on specific moods like Nature or ASMR. Currently, the series automation requires a voiceover, and I have to manually delete them and adjust scene lengths, which is too much work for a series. I want to be able to tell the AI the topic/mood and have it generate the series with only nature sounds or ASMR background audio.