On Thu, Apr 15, 2010 at 5:22 AM, Gwenhwyfaer <gwenhwyfaer@xxxxxxxxx> wrote: > On 14/04/2010, Arnold Krille <arnold@xxxxxxxxxxxxx> wrote: >> I am not into that field of science but as far as I know there is research >> in that there are effects when >22kHz frequencies are in a normal sound > > Then tell us where the research is. It shouldn't be hard to find. > > Especially when it's so easy to posit an experiment to do such testing > with DACs that can reproduce signals up to 192kHz. This is a very good idea save one possible problem. The use of 192kHz DACs is not generally in order to get reproduction up to 96kHz signals. It was to ease the analog output stage topology design so you don't need to use a brick-wall rolloff that's full of ripples. At least, this was the original motivation. It's entirely possible that these days there are 192kHz DACs with output filters that have very nice response well over 22kHz. But I'd test that on a trusted spectrum analyzer first. (For example, the old emagic boxes with 96kHz playback could indeed reproduce up to 48kHz output with good flatness. So I'm sure the beasts exist, I just wouldn't assume that was the case without measuring it) Monty _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
