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by davidferguson 1532 days ago
All correct (as far as I'm aware), except for the unfortunately common inaccuracy that Dolby Digital on film is AC3. Sadly it's not - it's an earlier iteration of that technology that's incompatible. It must be pretty similar, though.
1 comments
gwbas1c 1531 days ago
You can edit the Wikipedia article.
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astrange 1531 days ago
They don't let you put stuff on Wikipedia just because you happen to know it's true, right? You have to launder it through a source first.

I suppose he could get away with nobody adding the [citation needed], but that'd be against the rules.

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wolverine876 1531 days ago
What makes you believe the GP is correct and whoever wrote that in the article is wrong, or that either are correct?
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davidferguson 1531 days ago
My knowledge comes from someone who helped develop Dolby Digital on film so I'm pretty sure it's correct.
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wolverine876 1531 days ago
Sorry, I didn't mean to comment on your expertise, but rather the epistemology of who we believe.

> My knowledge comes from someone who helped develop Dolby Digital on film so I'm pretty sure it's correct.

That is certainly better information than anyone else here has, and you seem to actually understand the technology. I wish HN was 90% comments like yours and almost none of the rest, especially Wikipedia!

But while we're talking about epistemology! Decades-old memories go wrong, and when vested interests are involved the memories can drift to desired beliefs or familiar narratives. That doesn't make the comment a bad one - it's very valuable, actual knowledge. But it's not sure to be correct either, and/or not precise.

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davidferguson 1531 days ago
Absolutely true and I agree with you. Something else to back up that it's not quite AC3 is that I've captured the raw signal that goes into the decoder box's "AC3-decoding card", and it's not quite what I'd expect for AC3. You can learn more about that and download the raw signal capture at https://fanrestore.com/thread-2633-post-73179.html#pid73179
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wolverine876 1531 days ago
Holy cow, what an amazing-looking community! What is going on there? Who is behind it? And when people restore a work, can they share it with other members?
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