Talk:Quantization (signal processing)

message: I did my best to bring the premature page of Quantization(Signal Processing) to an acceptable state.
Now it has all the necessary definitions and mathematical explanations.
It still lacks alot though. For example :
- good graphs for quantizer I/O maps ( I cannot add, since I am not a member)
- graphs for companding functions
- a few numerical examples
- adaptive quantization details
- further decoration of the topics
- application examples
I might add as much in the future,
NEVERTHELESS, this page is acceptable now.
we may get rid of the banner on top.  —Preceding unsigned comment added by 88.226.92.114 (talk) 19:49, 6 April 2011 (UTC)
replies: text: Maybe there is a new banner, but right now it says the article needs additional citations, and I think that is true.Constant314 (talk) 22:25, 6 April 2011 (UTC)

text: I like what you have done with the introduction.Constant314 (talk) 22:57, 9 April 2011 (UTC)

text: While you are at it, you may want to eliminate the use of first person plural in favor of third person.  Example: "After defining these two performance metrics for the quantizer, we can express a typical Rate–Distortion formulation for a quantizer design problem in one of two ways: " could be rewritten as "After defining these two performance metrics for the quantizer, a typical Rate–Distortion formulation for a quantizer design problem can be expressed in one of two ways: "Constant314 (talk) 13:43, 12 April 2011 (UTC)
replies: text: There are no longer any occurrences of "we" in the article. ~Kvng (talk) 19:40, 20 February 2022 (UTC)
thread_title:  Page is Mature Enough? 

message: I cannot find a reference right now, but my recollection is the mu-law was mid rise and A-law was mid tread which means the slightest noise causes the mu-law device to toggle between two states while the A-law does not.  Thus, a mu-law circuit transmits noise where an A-law would not.  This got to be a marketing issue over who had the quietest network.  Manfacturers started adding a half a bit bias to the mu-law encoders to get a circuit so quiet that "you could hear a pin drop".  Anyway, you may want to work mid-rise, mid tread into the section on mu-law and A-law or maybe work the A-law, mu-law into the mid-rise, mid-tread section.Constant314 (talk) 16:14, 23 April 2011 (UTC)
replies: text: mu-law and A-law are no longer discussed in the article. Perhaps this difference could be mentioned in in μ-law algorithm or A-law algorithm. ~Kvng (talk) 19:40, 20 February 2022 (UTC)
thread_title:  Mid rise, Mid tread, mu-law, A-law 

message: The page needs a list and references to methods for reduction of quantization noise.  — Preceding unsigned comment added by 206.132.109.103 (talk) 13:39, 11 April 2018 (UTC)
replies: text: Higher resolution is the way to reduce quantization noise. Dither makes it sound better and that's already mentioned in a couple of places. ~Kvng (talk) 19:40, 20 February 2022 (UTC)
thread_title:  Common correction methods 

message: The description of the image "Quantization error.png" implies that only quantization is shown, even though the signal is both sampled and quantized. Adding reconstruction to the mix furthers the confusion. I prefer the German wikipedia's image, but it's missing quantization noise. 141.23.221.10 (talk) 12:41, 23 November 2023 (UTC)
replies: text: In the most common applications sampling, quantization and reconstruction are used together. If we plotted quantization error for the German Wikipedia's image (right) we'd get a nasty jagged thing which I don't think would help readers understand the issue as it exists in the context of reconstruction where it commonly occurs. The obvious fix is to improve the caption of the existing image but the caption is already long enough. It would be good if we could find a way to introduce the reader more gently but considering the case without sampling and reconstruction is probably a digression. ~Kvng (talk) 15:42, 26 November 2023 (UTC)
replies: text: Fair point, i still think it's misleading how every picture in this article shows both quantization and sampling and it's not clarified prominently. 141.23.209.210 (talk) 11:59, 2 December 2023 (UTC)
thread_title:  First image misleading