Phil Leigh;642625 Wrote: > I'm afraid the creative card isn't up to the job. At a minimum you need > to use a card that doesn't internally resample. Also, sample rate > correction is essential. Without that, your results look about right to > me. When comparing different CD players, their respective clocks will be > drifting all over the place (relative to each other) and without sample > rate correction you just won't get meaningful results. > > I've been able to get comparisons of cd (rip) playback against the > original CD PCM file in the 30-40 range which is not too bad. At the > end of the day the absolute values aren't critical; If you get one > comparison at 30 and another at 40, the 40 one IS closer to the > original sound... I got a cheapish m-audio card (24/96) which does seem much better than my Creative one (not as good as the 24/192 I'm sure, but enough for me to try a few things). It certainly rips LPs much better.
I thought I'd do a few rather rough and ready checks with the Touch and ADM. With the Toolbar installed and all mods enabled, Digital out only, using the external clock for SPDIF and sending PCM over my network, I get around 90db compared to the original rip, which seems good to me. If I send FLAC I get around 70Db, which I think tells me something. No sample rate compensation is needed. Both of these are for a full 2 minute track. With Analogue out only, I have to cut the track length back to about 20 seconds otherwise it crashes with sample rate compensation (which is needed). I then get only 20-25 db results with either PCM or FLAC over the network. I probably should get a separate DAC, but that will have to wait. I'm not sure what you meant by internally resampling, since for an analogue test I assume it has to resample doesn't it? -- PasTim ------------------------------------------------------------------------ PasTim's Profile: http://forums.slimdevices.com/member.php?userid=41642 View this thread: http://forums.slimdevices.com/showthread.php?t=84742 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
