|
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: what exactly this mod add to the sound of stock VDA? posted by kuma on January 6, 2003 at 09:25:42:
.. so that CDs recorded with pre-emphasis sound correct. Otherwise they sound *very* bright. Few CDs ( < 1%?) were produced with pre-emphasis, but they are quite un-listenable without correct de-emphasis.Without correct de-emphasis, the sound will be around +3dB at 3kHz, +6 at 7kHz, and +9 at 10kHz (these are approximate). I believe that pre-emphasis was added in analog recordings so that the subsequent de-emphasis would reduce tape hiss, and improved HF headroom.
Some CDs I own with pre-emphasis:
(Sony) Glenn Gould 1980 Goldberg
(Hyperion) Emma Kirkby collection
(Sheffield Labs) Various
(Stereophile) Some tracks on Test CD 2 (organ trio sonata)I've not checked my library extensively. I have more than the expected 1%. I think anyone who has AAD and ADD recordings may have them. Sony apparently believed that pre-emphasis helped in days when DACs could really only do 14 bits of conversion.
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- The mod adds de-emphasis capability... - MB 01/6/0315:08:04 01/6/03 (1)
- ah.. ok. thanks for the explanation... - kuma 17:29:46 01/6/03 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
