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In Reply to: RE: /maxmem - second thoughts posted by rickmcinnis@dogwoodfabrics.com on January 22, 2012 at 20:06:44
For me the same experience: without the maxmem it sounds just a bit more musical, more body, more detail. Very subtle though.
I implemented it in a former setup (H55M), and continued this in the current atom d525 setup. So for me the lesson is every new setup needs its own check of the tweaks.
As for upsampling: i tested:
A. songs 44.1 upsampled to 88.2 by cmp
B. same songs upsampled 'by hand' and stored in a 88.2-file, no upsampling by cmp.
B sounds better, little more music, stage, detail
So in this case: the less work for cpu, the better
Follow Ups:
Other than the massive additional storage needed I do not doubt it is better to do this before but I have been concerned that there is something about SRC that is not available from, say, dBPOWERAMP which will upsample. I am sure there are others that I am not aware of.
My DAC upsamples everything to 192 and seems to me SRC/cMP does a better job so I leave cPLAY with 192/highest resolution.
What are you using for upsampling? I would like to give it a try.
Thanks,
For upsampling i use SoX (like cPlay and Foobar). Ik like it more than SRC. These are the settings i use in batch-resampling:
mkdir H:\MUZIEK_ORIGINEEL_3288\A_sox
FOR %%A IN (%*) DO sox %%A -b 32 -t wavpcm "H:\MUZIEK_ORIGINEEL_3288\A_sox/%%~nxA" vol 1.0 rate -v -s 88200 stat -v
pause
I don't recall the meaning of all settings (did it years ago).
I think 'stat' gives report which i use for checking on clipping. If clipping occurs, i set volume to 'vol 0.8' and retry.
32 stands for 32bit lots of 'zero's', huge files but better sound
My DAC upsamples to 176.4. Thats why i let cPlay/myself upsample to 88.2 In my setup this gives the best results.
Douwe
When I did upsample I also preferred sox. Now I listen to 44k sr. But the idea to restructure the file to 32 bits is very clever. I should try that.
I did not realize/remember that.
I think my problems with it are entirely due to upsampling.
I used to halve the duties in a similar way but eventually settled on full on cMP.
On cPLAY I seem to prefer SRC to SOX though I have no way to describe the differences I hear and wonder if I really DO hear a difference.
But upsampling the file does interest me.
Thanks for bringing it up!
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