aubuti;604053 Wrote: > > > how turning of replaygain adjustment on an external server streaming > PCM affects the processor load or "noise" within the Touch. It's not an > "attack" -- it's something I would like to understand. > > Happy listening!
Can be another thing entirerly. Is it not simply to keep the volume at 100% all the time ? rg uses the squeezebox volume to achieve it's thing, meaning that even if you have the squeezebox volume at 100% it is not really 100% if you have replaygain on and files with rg tags, it's more like 85-90% ish ? that could be wrong but typically rg drops the volume -10dB . so a price for using rg is lower s/n , the volume is digital so it would also affect people using a DAC or processor the following DAC would not use it's most significant bits and thus also have lower s/n ratio, 24 bit files would no be 24 bit anymore and DTS or dolby coded files would not function if you are using an HT processor. So there always been a small cost to absolute soundquality using rg. I have processor that does room correction and other things so I prefer to have my volume adjusted in one place my Meridian processor which I believe have a better volume control . Also consider the latest fad with some audiophiles DAC built around the old phillips TDA 1541 or similar 16bit multibit dac's (NOS DAC) . These DAC's does not have 24bits to toy with the Touch volume control operates with 24bit but such DAC conected directly would actually truncate bits as soon as you use rg or volume ? Also you get the old linearity problem as the smaller bits are harder to get to rigth size in such dac. More modern DAC's with delta sigma or similar "1" bit approach does not suffer that much from this non-linearity (thats why they where invented). But "only" with loss of s/n ratio . There is of course a good argument against my reasoning here the fact's that most recordings needing large negative replay gain is severely destroyed in the loudness war and have massive compression and sound quite bad anyway so no one would actually notice. But technically rg uses the Touch's volume using the volume gives slightly lower s/n ratio if this can be heard in isolation I got no idea but it's not made up it's a real effect, so in the hunt for the last bit of sound-quality you migth turn it off . many hifi products simply have to much gain so most people have to much gain in their systems i think this emphasize noise problem in source components, maybe this makes it more audible than intended ? -- Mnyb -------------------------------------------------------------------- Main hifi: Touch + CIA PS +MeridianG68J MeridianHD621 MeridianG98DH and assorted amps SiriuS, Classe' Primare and Dynadio speakers, Contour 4 Contour Center, and Contour 1.3SE rear ch. Rel Stadium 3 sub. Bedroom/Office: Boom Kitchen: SB3 + powered Fostex PM0.4 Misc use: Radio (with battery) PLEASE FIX BUG 112 http://bugs.slimdevices.com/show_bug.cgi?id=112 ------------------------------------------------------------------------ Mnyb's Profile: http://forums.slimdevices.com/member.php?userid=4143 View this thread: http://forums.slimdevices.com/showthread.php?t=84742 _______________________________________________ Touch mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/touch
