Morning Doc! drmatt wrote: > Are you sure the Brooklyn doesn't still use a 22khz-ish filter even when > upsampling? I don't remember reading about that.
Having dug through all the stuff about the dimensions of King Solomon's Temple in the user manual, I can't find a definite answer to this. For PCM playback there are 3 filter *-shapes-* selectable by the user, viz: 1. Minimum Phase; 2. Slow Roll-Off; & 3. Fast Roll-Off. I haven't fiddled with this setting & I've just checked to discover that option 3 is selected so I'm assuming that that is the default. There is no mention of the frequency at which the filter is applied for PCM playback. However for DSD playback, the default (Auto) filtering is 47.44kHz IIR filter for DSDx64, 60kHz IIR filter for DSDx128 & finally 70kHz IIR filter for DSDx256. So I'd guess that the PCM filtering is applied just below the Nyquist frequency - isn't the idea of 96kHz sampling frequency recording that you have your anti-aliasing filtering well up above the audible range so there is no impact on the audible frequency response at all (given that real-world filters are not brick-walls)? I would be happy to confirm this with Mytek's technical support guys if you'd like (I'll probably do it anyway, you've got me wondering now... ). > Do you always manually set your sample rate in the Brooklyn? I have one > of its predecessors and leave it to sync to input and I can't say I've > ever really noticed any difference between that and manually setting it. > (Well, apart from when it wound up resampling due to me leaving it set > to the wrong sample rate.) I need to do this because I'm using the Mytek's word clock out to control my Transporter (audiophool that I am :D ): otherwise I could make the Mytek sync automatically which would be slightly more convenient. But the Mytek does have a remote & the facility to control it from a GUI on my computer via (wired, obviously) USB 2.0 link. So I don't have to haul myself off my sofa to do it! Dave :) ------------------------------------------------------------------------ Golden Earring's Profile: http://forums.slimdevices.com/member.php?userid=66646 View this thread: http://forums.slimdevices.com/showthread.php?t=106519 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
