
Research on the topic.

The development of AI technology enabling a deceased person to communicate with individuals attending her funeral marks a novel and ethically intricate frontier. While the idea may elicit both fascination and apprehension, it prompts a profound reflection on the intersection of technology, mortality, and human connection.

The arrival of technology that allows us to "speak" to our deceased relatives signals a moment of profound reflection on the evolving relationship between technology and the human experience. As we stand at the intersection of innovation and emotion, the question arises: are we ready for this unprecedented leap into the realm of posthumous communication?
https://www.technologyreview.com/2022/10/18/1061320/digital-clones-of-dead-people/

The concept of Microsoft exploring a patent to create chatbots to simulate conversations with deceased loved ones raises intriguing questions about the intersection of technology and emotions. While the idea may be fueled by a desire to offer comfort and a semblance of connection, it also brings forth ethical considerations and the need for careful reflection.
https://www.independent.co.uk/tech/microsoft-chatbot-patent-dead-b1789979.html

The emergence of an AI service that allows individuals to communicate with their deceased loved ones presents a scenario reminiscent of the thought-provoking narratives found in the television series Black Mirror. This technological feat marks a significant leap into uncharted territory, challenging our perceptions of life, death, and the role of technology in bridging the gap between them.
https://interestingengineering.com/innovation/ai-service-lets-you-converse-with-dead
Videos relate to the articles.

AI lets deceased woman address her funeral | Artificial Intelligence tool helps the dead talk | WION

Videos about AI photo and voice generate.

The video demonstrates how to use the HeyGen 2.0 to generate the instant Avatar by AI. The websites requires 2 minutes video of human for the AI to clone and mimic the voice and body language. The avatar can generate the text and creat a video that speak humanly and have a very natural body language which looks like the prototype video that was sent to the website in the first place.

The video demonstrates how to use different websites to create the photo avatar, which the photo can speak but not very much humanly.