Adobe has announced a so-called revolution in audio editing which, according to Adobe’s presentation, allows the operator to automatedly analyze a speaker’s voice and resynthesize it to say any arbitrary thing.
Here is, once more, the link to the presentation, including a presentation on video:
The speaker proclaimed that Adobe was making sure to have built-in measures against abuse, but if this technology is possible, we can be sure the government and probably many media outlets already have it and have none of the built-in watermarking to protect against abuse, although I am sure the public version of the software will have such “safe-guards” built in.
According to the presenter in the linked video, the piece of software needs no more than 20 minutes of a speaker’s voice to create convincing results.
So, know that from this point onward (and very likely for the last few years) you can no longer fully trust audio recordings of any kind.