https://forum.enlightenedstates.com/t/do-the-audio-morphic-fields-work-on-a-deaf-person/4246/4?u=maoshan_wanderer
https://forum.enlightenedstates.com/t/do-the-audio-morphic-fields-work-on-a-deaf-person/4246/21?u=maoshan_wanderer
https://forum.enlightenedstates.com/t/do-the-audio-morphic-fields-work-on-a-deaf-person/4246/23?u=maoshan_wanderer
The above thread has many great pointers on this topic.