SoftwireEngineer wrote: > Oh my goodness ...there is only a very slight difference between the 1 > one and the 60th generation. 60th generation either has 60 times the > jitter (or is it 120 or 120-1 ?) and still the difference is only very > little. This is the best way to test for jitter. Every D/A and A/D will > add some jitter, if a system cannot resolve this or you are unable to > hear any difference, then 60 times the jitter is unnoticeable. How much > jitter can one reduce in the playback chain ? Do the digital cables or > any tweaks reduce jitter by 50-100 times ? Very interesting. Thanks for > the link..
That's the least of the problems you also add a lot of noise and thd and the normalisation process can't be transparent either. The take home piont is that you have to do it 60 times with a "crap" DAC/ADC to get close to the limits of human hearing . Now what are the probability of hearing these huge differences " blacker blacks " and "lifted veils " described by the audio press ? Especially comparing really well designed DAC's :) a modest sense of proportions would be fitting no ? Things that the audio press should do , is like Archimago done with his ASUS DAC discover that some features are broken with the ASUS over sampling filter implementation this test would not pass it's audible in 1 iteration . The quality of the small signal electronics in modern audio is clearly beyond human hearing acuity if it's properly done . But much stuff has a lot of functionality and modes and settings so there is always the possibility for anomalies to sneak in , like in the Asus case . And the equipments ability to interface and function with other stuff can make clear differences. So testing without measuring like some magazines do is just silly , the product may have issues but you may not easilly discover them if you not stumble over the use case that reveals it . Another case was on this very forum where a gentleman had a preamp that was clearly overdriven by input signals over 1 volt ? And the Touch has > 2 volt , an extreme example of flawed design as almost all modern sources has more than 1 volt out , but I could not remember a more subtle example rigth now . ------------------------------------------------------------------------ Mnyb's Profile: http://forums.slimdevices.com/member.php?userid=4143 View this thread: http://forums.slimdevices.com/showthread.php?t=97950 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
