Talk:Oversampling

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Redirect

Delta-sigma modulation now exists. ~Kvng (talk) 20:02, 15 April 2020 (UTC)[reply]

The following discussion is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.

I am redirecting sigma-delta modulation and delta-sigma modulation to here. I hope this is correct enough. - Omegatron 19:12, Apr 15, 2005 (UTC)

I don't think so. There's more to sigma-delta than oversampling! --24.182.140.18 18:28, 15 September 2005 (UTC)[reply]

I had actually landed here looking for a definition of Sigma-Delta modulation, making this page, as it stands, actually of no value to me. What it needs (preferably from someone who understands why it was redirected so) is a short paragraph explaining the redirection.

Any takers?

The discussion above is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.

Typo?

No longer in article ~Kvng (talk) 20:02, 15 April 2020 (UTC)[reply]

The following discussion is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.

"After being sampled at 800 Hz, the signal could be digitally filtered to have a bandwidth of 100 Hz and then further downsampled to closer to 200 Hz."

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Backward compatability

Backward compatability doesn't seem to be working with my various HiFi set-ups. Not sure if this is to do with oversampling or a.n.other it is all rather infuriating not to mention expensive. I wonder what the longer-term solution will be. Znethru

Oversample vs Supersample

Why no mention of "supersampling"? wasn't there a separate page for that before? —Preceding unsigned comment added by Spot (talk • contribs) 00:15, 14 July 2008 (UTC)[reply]

I added a Supersampling link to the See also section. ~Kvng (talk) 20:02, 15 April 2020 (UTC)[reply]

Unclear

"For instance, to implement a 24-bit converter, it is sufficient to use a 20-bit converter that can run at 256 times the target sampling rate. Averaging a group of 256 consecutive 20-bit samples adds 4 bits to the resolution of the average, producing a single sample with 24-bit resolution."

I am no expert or engineer, but the abovementioned statements are unclear and seemingly contradictory. Does it mean running 256 x the target sampling rate (sentence 1), or simply running 256 20-bit samples then averaging it out? They are not the same. 116.14.16.166 (talk) 02:30, 12 April 2010 (UTC)[reply]

I agree. --ANDROBETA (talk) 09:01, 17 October 2010 (UTC)[reply]

To help us improve this, please explain where specifically you see an internal contradiction. It is talking about running at 256 x target sample rate then averaging those in blocks of 256 samples to produce samples at the target rate. --Kvng (talk) 15:09, 17 October 2010 (UTC)[reply]

It could be either 256 20-bit A/D running in parallel at the sampling rate, or 256x the sampling rate with 1 A/D.

I think this potential ambiguity is adequately addressed in the current text. ~Kvng (talk) 20:02, 15 April 2020 (UTC)[reply]

Fix misspelled reference author's name

In Reference 4, "Holma" should be "Holman". I would fix it but I can't figure out where the appropriate text is.

184.98.51.112 (talk) 21:05, 3 April 2020 (UTC) O.R.[reply]

Done ~Kvng (talk) 14:16, 6 April 2020 (UTC)[reply]

Oversampling and colour handling

Hi! I'm a dumb end-user of old analog video game console scalers. I read that some scalers use oversampling in order to achieve a pseudo-4:4:4 processing. I don't really undertstand what it means in simple English, and I don't know what it implies when the analog source already exhibits signs of chroma subsampling. Some paragraphs about that in the article would be appreciated. Please. 😅 -Philippemorin123 (talk) 19:08, 20 December 2022 (UTC)[reply]