iRetro vs DSD Mastering Viewer

Have you ever wonder how the Facebook, Yahoo or [[put your favorite website here]] looked like 10 years ago? Or 15? Now you can do this with our browser powered by Wayback Machine API*! Just set the date and that’s it - you’re in the past! The app has retro design for the deep diving into the atmosphere of oldschool web. The app can also browse the modern web, you can use it as regular browser. It has a simple minimalistic interface and, therefore, unlike other browsers, it won’t be able to spy on you :-) The app is absolutely free and not contains any ads or in-app purchases. Have a nice trip to the past, fun present and bright future! * For more information visit http://archive.org/

DSD Mastering Viewer reads a DSD or high-resolution PCM file and works out, from the spectrum alone, what production chain it most likely came from. A file labelled DSD256 may be a genuine high-rate master, or a DSD64 SACD transfer in a larger container carrying an older modulator's noise as content. A 192 kHz download may be a real 192 kHz capture, or a CD upsampled into an empty band. The container never says which. The ultrasonic region does. WHAT IT MEASURES • The wideband spectrum out to 176 kHz, well past the limit of hearing • How the level above the audio band is shaped, and where it starts to rise • Left/right coherence — whether ultrasonic energy is independent between channels, which is what decides whether it can read as width and air • A band table from 15 kHz upward, in dB relative to the music WHAT IT TELLS YOU A plain-language verdict naming the most likely chain, with a confidence qualifier and the evidence behind it — DSD64 heritage, a freshly remodulated PCM or DXD master, a native high-rate capture, an analogue or heavily processed transfer, an upsample from a lower rate, or a lossy-encoded source. A recording-chain grade out of ten scores what the chain delivered: real bandwidth, an honest container, and a clean region above the music. CONVERSION Convert between DSD and PCM in either direction — DSD64 through DSD2048, PCM from 44.1 to 384 kHz in 16-bit, 24-bit or 32-bit float — with an optional linear-phase filter that removes inherited ultrasonic noise while leaving everything audible untouched. The chart draws the predicted result before you commit to it. HONEST BY DESIGN A file that cannot carry 50 kHz is never reported as having nothing there; it is reported as unobserved. Confidence is capped when there is less evidence to go on. The verdict always hedges, because a spectrum constrains a file's history without proving it. And the grade is explicitly a judgement of the production chain, not of how the record sounds — no spectrum can tell you that. Reads DSF, WAV, AIFF, FLAC, ALAC and CAF. Nothing is uploaded; there is no networking code in the app at all. FREE FOR THREE DAYS Everything is open for three days. After that the Viewer and the Converter are separate one-time purchases — no subscription, nothing renews, and either one covers all your Macs, iPhones and iPads.