RE: Would have to disagree

Posted by Tony Lauck (A) on July 29, 2010 at 10:40:21

In Reply to: RE: Would have to disagree posted by Thorsten on July 29, 2010 at 06:24:58:

"The remainder is made up by using mathematical trickery (or some may say "magic")."

The "mathematical trickery" seems like magic until you understand it. If you are like me and prefer to avoid depending on magic there is some serious homework involved. First there is some mathematics that one has to learn, how much depends on where you start. You should be able to read and understand the linked reference, which due to its length alone will take some time. It is likely that portions will be incomprehensible, so there might be a need to crack a text book. Or even two, if you find the first textbook itself incomprehensible. Second, there is one thing more that you will need to understand, and this is more a matter of engineering than anything else. You will need to have a clear understanding of the difference between "function" and "mechanism".

Ordinarily when I read a marketing white paper, I expect (based on experience) to see nothing but pseudo-technical BS. Dustin's white paper on the SABRE chips is one of the few cases where my BS alert was silent, and it was quite obvious that these were going to be exceptional chips if the quality of the manufacturing process measured up to the quality of the engineering. If you want more background on how these chips work you can also read the related patents.

There is one remaining question, I suppose: "Why would anyone want a 32 bit DAC?" The potential 192 dB of dynamic range is more than sufficient to cover at the low end inaudible sounds and at the high end events of military significance. Clearly engineering overkill! The answer, however becomes clear if one looks a little deeper. The DAC chip itself is approaching the limits of 24 bits, and hence there can be a demonstrable increment in performance by having additional input resolution. Considering that there is essentially zero extra cost in providing the extra 8 bits on the input side, this becomes an engineering no-brainer. Sure the benefit is small, but so is the cost. (But note, I am talking about cost, not necessarily price. :-) )

Tony Lauck

"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar

The Theory of Dithered Quantization (Open in New Window)

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Follow Ups Full Thread

Topic - I might as well ask this here being this is where I trade but what is a good NOS/DAC to buy? - Michael Samra 08:42:00 07/28/10 (31)

thanks guys but,what is the 24 bit i keep hearing about - Michael Samra 20:18:37 07/28/10 (21)

RE: thanks guys but,what is the 24 bit i keep hearing about - Thorsten 22:02:50 07/28/10 (20)

new chip. - Michael Samra 22:32:40 07/28/10 (19)

RE: old chip- MASH - reb 08:14:01 07/29/10 (7)

The idea of DAC that interests me is - Michael Samra 11:56:08 07/29/10 (6)

RE: The idea of DAC that interests me is - reb 11:52:40 07/30/10 (5)

RE: The idea of DAC that interests me is - Michael Samra 15:45:45 07/30/10 (4)

RE: The idea of DAC that interests me is - Thorsten 22:41:25 07/30/10 (1)

RE: Excellent post, maybe he will listen to us and give up - reb 12:31:08 07/31/10 (0)

RE: The idea of DAC that interests me is - reb 17:14:01 07/30/10 (1)

RE: The idea of DAC that interests me is - Michael Samra 15:41:57 08/01/10 (0)

RE: new chip. - Thorsten 03:25:48 07/29/10 (10)

Would have to disagree - Gordon Rankin 05:44:48 07/29/10 (9)

RE: Would have to disagree - Thorsten 06:24:58 07/29/10 (8)

missing the point - Gordon Rankin 06:51:22 07/30/10 (3)

RE: missing the point - Thorsten 07:50:48 07/30/10 (2)

RE: missing the point - Donald North 11:43:08 07/30/10 (1)

RE: missing the point - Thorsten 21:14:30 07/30/10 (0)

RE: Would have to disagree - Tony Lauck 10:40:21 07/29/10 (2)

RE: Would have to disagree - Cleantimestream 12:18:41 07/29/10 (1)

RE: Would have to disagree - Tony Lauck 12:27:56 07/29/10 (0)

RE: Would have to disagree - Mercman 07:51:44 07/29/10 (0)

RE: I might as well ask this here being this is where I trade but what is a good NOS/DAC to buy? - xaudiomanx 16:02:55 07/28/10 (0)

RE: I might as well ask this here being this is where I trade but what is a good NOS/DAC to buy? - Stuben 15:38:57 07/28/10 (0)

RE: I might as well ask this here being this is where I trade but what is a good NOS/DAC to buy? - Thorsten 09:56:56 07/28/10 (6)

RE: I might as well ask this here being this is where I trade but what is a good NOS/DAC to buy? - boyk 13:01:46 10/29/16 (0)

Among other brands that would include AN(UK) and AMR - Frihed89 11:27:06 07/28/10 (4)

RE: Among other brands that would include AN(UK) and AMR - Thorsten 21:48:21 07/28/10 (3)

RE: Among other brands that would include AN(UK) and AMR - Michael Samra 02:05:09 07/29/10 (2)

RE: Among other brands that would include AN(UK) and AMR - Thorsten 03:27:31 07/29/10 (1)

RE: Among other brands that would include AN(UK) and AMR - Michael Samra 11:47:29 07/29/10 (0)

Follow Ups

RE: Would have to disagree - Tony Lauck 10:40:21 07/29/10 (2)

RE: Would have to disagree - Cleantimestream 12:18:41 07/29/10 (1)

RE: Would have to disagree - Tony Lauck 12:27:56 07/29/10 (0)

RE: Would have to disagree

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