|
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: Linearly quantized posted by Ted Smith on March 3, 2007 at 08:54:29:
Thanks for the responses Ted.What I was trying to describe was simply the action of taking the signal and then quantizing it with a grid -- F(s) and the number of amplitude quanitizations possible given the number of bits. With linear quantitization for amplitude there are more gradations for a louder signal. When I was refering to "dividing by the number of bits" I was talking about dividing the signal up by 65,536, not 16.
My apologies for not making my point more clearly and for using confusing language.
Looking at the first few quantizations, I see the second quantization is 2x the voltage of the first, or 6dB, the 3rd is 1.5x the voltage level of the second or 3.5dB higher, the 4th point is 4/3x the voltage of the 3rd or 2.78 dB and so on. The very lowest level signals are crudely recorded in terms of dB differences. The 64,001 gradation is just .0001 dB louder than the 64,000th.
It's surprising what we can hear -- differences in line level amplifiers and cables, even when much grosser distortions exist elsewhere. The low level signal performance of the CD has often been described as inadequate or lacking in comparison to the LP, even when much higher noise levels are present in the LP and LP playback system.
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- Re: Linearly quantized - WinthorpeIII 10:54:58 03/03/07 (1)
- Re: Linearly quantized - Ted Smith 15:08:29 03/03/07 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
