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In Reply to: RE: My USB DAC research and some questions... posted by drrd on December 22, 2008 at 04:34:29
How do you mean better than hardware? If you're talking about software playback with upsampling straight to a DAC compared to playback with a hardware upsampler in series how do you separate out the SRC quality from the playback process?
I have the same DAC with hardware upsampler and then one without, so I can hear the hardware upsampler and then the software SRC.
I've *processed* files with different SRCs including loopback recording the output of a hardware upsampler and then playing the files back with the same software/hardware; secret rabbit was noticeably worse than r8brain which was slightly worse again than the hardware SRC. 44.1 -> 96 or 192 was not as good as 44.1 -> 88.2 or 176.4.
To me Foobar 8.3 with secret rabbit 44.1 -> 96 smooths the high frequencies but is very woolly sounding, I've never really liked it.
What operating system and means of bypassing kmixer are you using? This is critical. With XP unmapped, software SRC is excellent. If you dont bypass kmixer, it will sound worse than hardware upsamplers.
steve N.
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