Talk:Quadraphonic sound

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Professional sound production Mid‑importance

	This article is within the scope of WikiProject Professional sound production, a collaborative effort to improve the coverage of sound recording and reproduction on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Professional sound productionWikipedia:WikiProject Professional sound productionTemplate:WikiProject Professional sound productionProfessional sound production articles
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Ok, so how Does it Actually Work[edit]

This article discusses various versions of quadraphonic sound and their differences, but it never talks about how the needle physically reads all 4 channels.

Well, the various systems are collected into two sets. The first is Quadraphonic sound#Discrete formats, where the systems that use a needle state how the extra channels are super-sonic. The second is Quadraphonic sound#Matrix formats, where the systems describe how the extra channels are encoded into the two main channels. What part of this wasn't clear from the article? Martin.leese 08:22, 10 January 2007 (UTC)[reply]

In no section of this article is the method of encoding or decoding, apart from the above-20KHz method or the discrete digital methods employed today, explained. Again and again, the phrase "the signal is 'encoded' and then 'decoded' " is used. There is not even a rough, non-mathemetical, description of the methods employed for transcoding four channels into two and then back again. Phase shifting is used once, briefly. Perhaps someone could add some simple explanation? At present I have to guess that it is some kind of phase difference between the channels that is filtered off, or high / low pass filtering? Literally nowhere is matrix encoding of 4-2-4 or 2-2-4 explained. And I have a reasonable grasp of encoding systems, such as ATRAC and NICAM. Blitterbug 09:46, 27 October 2019 (UTC) — Preceding unsigned comment added by Blitterbug (talk • contribs)

Phil Spector[edit]

Although Phil Spector is persona non grata for obvious reasons, I still feel like this article is incomplete without at least a passing mention of his contribution to reverb mixing techniques in the 1960s and 70s. Relevant information on this topic should be incredibly easy to source and cite by those with skills in editing official articles, which I lack. 98.235.68.109 (talk) 03:46, 6 November 2022 (UTC)[reply]

Is that directly related to the subject of this article? Bubba73 ^{You talkin' to me?} 03:52, 6 November 2022 (UTC)[reply]

can somebody add a "when?" tag to this, please?[edit]

"The most common digital media capable of reproducing surround sound music today are Super Audio CD, DVD, and Blu-ray. All of these are capable of playing high-resolution audio with multiple channels."

reason being that SACD is all but defunct, commercially.

my page editing chops have atrophied... cheers!

duncanrmi (talk) 18:13, 4 May 2023 (UTC)[reply]

I have 2 sides[edit]

. 5.235.246.138 (talk) 04:25, 12 August 2023 (UTC)[reply]