Dolby Laboratories has announced that it has developed 96KHz upsampling for mastering Blu-ray discs with Dolby TrueHD soundtracks. The technology, called by its fullname: Dolby TrueHD Advanced 96k Upsampling technology is compatible with current Blu-ray players and studio's using it can improve the quality of PCM audio before lossless Dolby TrueHD encoding is done.
Besides the upsampling part, the technology also introduces a filter that works against the preringing effect, a side-effect that comes with analog/digital conversion and which is masked by the filter. The algorithms used in this technology are developed by the company Meridian. This company first implemented the technology in a reference CD player, but now the CPU intensive sampling moves from the actual end product to the post processing part of the development of Blu-ray content.
