Universal's Audible Watermark (2012)
>I don't think there is anything inherently wrong with watermarking. The problem is with this particular poorly tested implementation.There is. Audio watermarking is inherently audible, because that is the only way to avoid being stripped out (deliberately or inadvertently) by the incredible technology we have for removing inaudible information from audio recordings: lossy audio codecs. The artifacts must be so salient that the codecs deem them important, audible information - codecs designed with elaborate psychoacoustic models, especially to make that judgement call with maximum efficacy. There's no way out.