On Sunday 16 March 2014 14:25:14 Ralf Mardorf did opine: > On Sun, 2014-03-16 at 08:58 -0700, Len Ovens wrote: > > I would mix the project at 48k or 96k > > Why 96 KHz? 48 KHz doesn't cause any issues, but already provides best > sound quality. > That I think is a personal call Ralf, primarily because at 48 Khz, your anti-aliasing filters had better be very very good brick walls by the time you get above 24Khz in input content just for the aliasing control. And aliasing noise, once introduced, cannot be removed by any known math function that does not have precise knowledge of the phasing (aka group delay) of the original signal. And those very good brick wall filters _will_ have a considerable group delay. IMO doing the sampling at 240K, then doing a weighted sum shift (5 stage shift) to decimate the data down to 48K, should result in dropping the alias caused noise floor by several db. Just bring lots of expensive hardware to do that. > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user@xxxxxxxxxxxxxxxxxxxx > http://lists.linuxaudio.org/listinfo/linux-audio-user Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
