DSD frequency range 2011-09-07 23:59:29 Hi everyone,I have a question regarding the DSD format and its frequency range. I did a research on DSD the other day and read about its alleged 50kHz frequency range. That intrigued me and motivated me to do a little experiment myself.My research consisted of the following: I found and downloaded a sample DSD (.dff) track online. It was from a classical album usually sold on SACD by the company whose website I downloaded the file from. I used Weiss Saracon software to convert it to 24/192 PCM wav file. Then I opened that wav file with Wavelab to examine its waveform and, more importantly to me for my experiment, its frequency spectrum.Surprisingly, though I had somehow thought as much, I discovered that there were no audio frequencies beyond 20-21 kHz! And given the proudly advertised (by Sony/Philips) SACD frequency range of around 50 kHz, the logical question is: what about those frequencies beyond 21 kHz?So the main question is: Could it be that they were "wiped out" during the DSD-to-PCM conversion? I doubt the company I downloaded the sample from would sell a SACD made from a standard CD master, which would have a cutoff at exactly those frequencies...Thank you for your help clearing this up.