Looper's Delight Archive Top (Search)
Date Index
Thread Index
Author Index
Looper's Delight Home
Mailing List Info

[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Date Index][Thread Index][Author Index]

Re: OT: 24Bit/96Khz vs 16Bit/ 44.1Khz recording



Most low-end converter designs today are 1bit delta sigma ones (the ones which look at the differences, as Van described). Hi-end stuff is usually 5bit delta sigma (also looking at the difference, but with higher resolution).

Am 16.12.2011 18:15, schrieb van Sinn:
Ahh, I see what you mean..
1bit converters works quite differently than older parallel converters.
In the old parallel converters, all bits were level set in parallel at the same time. Those were also called successive approximation converters, and was build on a ladder resistor network, each step in the ladder being calculated, and lazer trimmed to hairfine tolerenses, to power-of-2 voltage steps.

A 1bit converter will look at the level difference in the analog signal from each convertion sample to the next, and set the next word to the determined new value. In other words, it's based on voltage/level comparators.
And no, it doesn't change one bit only at a time ;)

--
http://moinlabs.de
Follow me on twitter: http://twitter.com/moinlabs