AI is being used to resurrect the voices of dead pilots

人工智能正被用于“复活”已故飞行员的声音

In the latest sign of these AI-heavy times, the National Transportation Safety Board temporarily removed access to its docket system after discovering that voices of pilots who were killed in a UPS plane crash last year had been re-created using AI and were circulating on the internet. 作为这个人工智能时代的一个最新迹象，美国国家运输安全委员会（NTSB）在发现去年 UPS 坠机事故中遇难飞行员的声音被人工智能重新合成并在互联网上传播后，暂时关闭了其档案系统的访问权限。

The NTSB is prohibited by federal law from including cockpit audio recordings in its docket system, which otherwise contains troves of data on investigations and has historically been open to the public. But the accident docket for this flight included a spectrogram file of the voice recorder. A spectrogram uses a mathematical process to turn sound signals, including low and high frequencies, into an image. 根据联邦法律，NTSB 禁止在其档案系统中包含驾驶舱录音，该系统通常包含大量调查数据，且历来对公众开放。然而，此次事故的档案中包含了一份语音记录仪的频谱图文件。频谱图利用数学处理过程，将包括低频和高频在内的声音信号转化为图像。

Scott Manley, a popular YouTuber whose channel combines physics, astronomy, and video games, noted on X that it could be possible to reconstruct audio from the megabytes of data encoded in that image. And that’s what happened. People took the spectrogram, along with the publicly available transcript, to create approximations of the cockpit voice recorder audio from UPS Flight 2976 in Louisville, Kentucky, according to the NTSB. They used AI tools like Codex, according to posts on social media. 知名 YouTube 博主 Scott Manley（其频道内容涵盖物理、天文学和电子游戏）在 X 上指出，通过图像中编码的兆字节数据，是有可能重构出音频的。事实也确实如此。据 NTSB 称，有人利用该频谱图以及公开的文字记录，合成了肯塔基州路易斯维尔 UPS 2976 号航班驾驶舱语音记录仪的近似音频。据社交媒体上的帖子显示，他们使用了 Codex 等人工智能工具。

The agency restored public access to the docket system on Friday but kept 42 investigations closed pending review — including the one related to Flight 2976. 该机构已于周五恢复了公众对档案系统的访问，但仍将 42 项调查处于关闭状态以待审查，其中包括与 2976 号航班相关的调查。