Talk:Oversampling

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I'm confused, I think the original is correct, with 16 (2^(24-20)) extra samples, there is no averaging, just a simple sum of the 16 samples. This keeps the answer as an integer, whereas an average would need a real number.80.5.195.225 20:02, 15 February 2007 (UTC)

The article contained a fundamental error in the example of increasing the resolution from 20 bits to 24 bits by averaging 16 samples: when you average n samples, the signal/noise ratio increases only as the square root of n, not proportionally to n. You need to average 256 samples to obtain extra 4 bits of resolution. - I corrected it. Leocat 14 Oct 2006

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)

typo?
"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."

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?

This is bizarre. I could swear I came here looking for sigma-delta modulation and complained that it isn't mentioned in the article at all. Then I left a message on the talk page about it. I must be thinking of some other article? Anyway both of them now redirect to delta-sigma modulation, as they should. — Omegatron 21:41, 13 October 2005 (UTC)

Heh. Posted on the wrong talk page. — Omegatron 19:50, 19 October 2005 (UTC)

[edit] simplification

Given that "oversampling" is a term that crops up in non-technical contexts quite often, (eg. advertisements for hi-fi gear, magazines) it would be appreciated if some kind soul could offer a dumbed down lay explanation that can be comprhended by non- or semi-technical people.. Editdroid 17:15, 17 February 2006 (UTC)

Kind of hard to do that. In order to understand what oversampling is, you have to understand the regular sampling theorem. Can you think of any specific contexts in which it is used that are not clear? — Omegatron 21:48, 14 October 2006 (UTC)

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