Phil: I hope that you don't think that I am trying to discourage you. As I said, this test can be an interesting test. But we have talked about this, and many of us feel until we get 24-bit resolution, it is not a great deal of help. Even if it does, we still get back to the same ol' problem we have always faced:
How does phenomena X relate to how things are perceived? If you start with the simplistic metric of distortion, you can get a number. Or expand it to get a spectral distribution. But neither result will tell you how and where it is going to affect a musical note, and how that change will be perceived. Where I think this method will really help, and you have discovered it, is how well your DAC can deal with issues that relate to jitter. I know that all of the fixes that you tried do have a significant affect on jitter. Your DAC uses a ASRC to address those issues. However, it does so by introducing some extra content of its own. Your testing can show that cables, etc. can sound the same on your DAC. But you have not shown that your DAC does this without adding any colouration of its own. It would be interesting grist to compare what comes out of your DAC to what goes into it. Admittedly, that could be tricky to discern. If one where to use a CDP that had a SPDIF output, there is no guaranty that the audio it produces will be close to the audio that you DAC produces. But, there is a chance that you could pick up on some of the effects of the ASRC. Pat -- ar-t http://www.analogresearch-technology.net ------------------------------------------------------------------------ ar-t's Profile: http://forums.slimdevices.com/member.php?userid=13619 View this thread: http://forums.slimdevices.com/showthread.php?t=60041 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
