Submission + - More Than One in Five "Hi-Res" Audio Discs Are Just the CD, Tests Find (losslessextract.com)
packslash writes: The developer of Lossless Extract, built a detector for upsampled audio and has run it on 1,225 SACD, DVD-Audio and Blu-ray Audio discs from users' collections. 272 of them, 22 percent, failed. "They hold CD-quality audio, no better than the $10 CD, stretched to fit a bigger disc and sold back at triple the price," the developer writes in a blog post. The failures include Prince's Purple Rain on Blu-ray, Rush's Moving Pictures and Dave Brubeck's Time Out. The test looks for music that stops dead at a hard ceiling, with a silence above it "so perfect it can't happen in the real world." Results depend on the edition. The 2003 SACD of Norah Jones' Come Away With Me fails, with all 14 tracks stopping at the same 23.5 kHz ceiling, while the 2012 SACD made from the analog tapes passes. The full list is public, and readers can test their own files in the browser without uploading anything.
