marcoc1712 wrote: > Sure it works on LMS and, as Kimmo reported, You coud try exactly this > configuration using Daphile. > > As far as i know, the italian forum where my projects are hosted is > hosting one of the more advanced NO DAC procjects, using JLSOUND and > HQPLAYER, but I'm quite sure authors are writing also in some > international fora on the same matter. > > Someone here tried to compare HQP and this fork of SOX. sSound quality > apart, SOX resulted much more resource hungry and using 'high' or 'very > high' quality makes impossible to perform conversion in real time on a > i7 server, you should then use 'fast' setting for that. > > Similar results exploited Archimago in a trial of HQP vs JRiver vs SOX, > but in his findings, in terms of measured 'fidelity' to the original > signal, SOX was the best, for what it matter. > > The author of the SOX fork explained that the process is like that: > > 1. first PCM Upsample to 88200. > 2. second PCM Upsample to xxx, depending on final DSD format. > 3. Digital filtering applied on the result, using a modified 'dithering' > algorithm (I suppose is not a dithering at all). > > Maybe I'm wrong, but double cascode upsampling in 'fast' qualiy is > likely 30-35% passband reduction plus digital filtering. > > No idea on what Jriver or HQP are doing, but I, as for now, I'm right > with old plain PCM (by the way, I'm not a fan of PCM upsampling too).
Mansr has improved the SDM filters couple of weeks ago (new ones are included in the latest Daphile beta). The upsampling is done with SoX directly to DSD rate (for the SDM), there is no need to resample to intermidiate 88.2kHz. Kimmo www.daphile.com ------------------------------------------------------------------------ kipeta's Profile: http://forums.slimdevices.com/member.php?userid=51816 View this thread: http://forums.slimdevices.com/showthread.php?t=97046 _______________________________________________ unix mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/unix
