Adobe experiment slips new words into your voice recordings

I don't see how the watermarking they talk about is going to succeed in preventing forgeries.

If they're planning to watermark unedited recordings, you have a huge false positive problem because there are billions of hours of legitimate but unwatermarked audio recordings, and will probably continue to be. You can also get false negatives by tampering with a watermark-capable device to get it to watermark something that wasn't recorded from analog. Or you can rerecord edited audio from an analog source and simply claim that your "genuine" recording is slightly noisy.

If they're planning to watermark edited recordings, someone else can implement the same kind of technology but without the watermarking.