The humanized presentation of Amazon's AI voice digital assistant Alexa, which can imitate any voice, caused a sensation on the Internet on Wednesday,Concerns have been raised about the possibility of voice forgery, such as using legitimate recordings to mimic people saying things they don't actually say, to carry out kidnapping scams or to fake audio during major corporate decisions.

On Wednesday, Amazon senior Vice President Rohit & Middot; Rohit Prasad, the company's chief executive, revealed that his company is working on a system that will enable Alexa, its AI-spoken digital assistant, to imitate any sound after hearing less than a minute of audio.

When the technology was announced, people simply thought about the benefits, and Alexa's chief scientist Rohit Prasad put the digital assistant on display at the company's presentation on Wednesday,Shows Alexa posing as a grandmother reading excerpts from The Wizard of Oz.He said that human traits like empathy and emotion are key to building trust with people, and that "during this time of the pandemic, when we lose someone we love, these attributes become even more important,""While AI can't erase the pain of that loss, it can definitely keep their memories alive."The demonstration gave the impression of the technology as a digital resurrection tool for the dead.

But Prasad, speaking at an Amazon technology conference in Las Vegas later,The main purpose of the service is not to simulate the voice of the deceased.

As the demonstration fanned the Internet, it caused a stir, with some raising concerns about whether legitimate recordings could be used to mimic people saying things they don't actually say. Siwei Lyu, a professor of computer science and engineering at the University at Buffalo whose research involves deep forgery and digital media forensics, said he was concerned about the development. "The speechconversion technology developed by Amazon certainly has benefits, but we should be aware of the potential misuse,For example, kidnappers can lure unsuspecting victims by posing as family members or friends on the phone, or senior executives can falsify recordings when making comments about a company's financial situation, which could cause problems for the stock market."

While Amazon hasn't said when Alexa's new feature will be available, similar technology could make such pranks a lot easier. Mr. Prasad said Mr. Amazon had learned to simulate sounds based on less than a minute of human speech, something that previously required a studio.

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