|
Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
|
|
|
Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
|
In Reply to: RE: Oversampling vs. Upsampling: Marketing Speak posted by John Swenson on August 28, 2012 at 12:59:48:
I agree that a "NOS DAC" when used with a computer can work quite well, but then I think one has to consider that the resulting DAC is not really NOS. It differs from a traditional oversampling DAC only in which box the filter is located. See the link below for an example of this approach.
If the DAC chip can't have its filter bypassed its filter can be made to do little to the sound quality if it is fed with an oversampled signal. (This assumes as you pointed out that there is enough bit depth.) All of the filter aberrations occur at least an octave higher up the Fscale, as I do it typically two octaves. In addition, any ringing won't be excited at all, if the software filtering is done well, as there will be no energy in the transition band of the chip filter to excite any ringing. This has been the approach that I used with the juli@ DAC and it seems to work with my SABRE chip based Mytek. (Here, upsampling to DSD128 seems to work slightly better than upsampling to 176/32.)
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- RE: Oversampling vs. Upsampling: Marketing Speak - Tony Lauck 15:13:11 08/28/12 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2024, Audio Asylum, all rights reserved ]