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Sound

ciechanow.ski

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Re: Sound

#141

Post by srcreigh »

A cool physical sound apparatus is a speaker port. This is the hole(s) you may find in some speakers.

https://blog.fluance.com/wp-content/uploads/2021/05/Ported-V...

Is the hole to help get the sound out..? No. As this article shows you, the speaker already moves back and forth, this will create changes in pressure yada yada.

The speaker port is not just a hole, it’s a tube. The air in that tube has a mass and due to changes of air pressure inside the box, the air mass in the tube will move back and forth just like a plate in the article.

The result is that you basically have 2 “moving plates” which create sound: the speaker cone itself powered by a motor, and the air mass in a tube powered by the air pressure in the speaker enclosure.

Cool video about speaker design

https://youtu.be/23q3zoKiuGs

Re: Sound

#142

Post by HankB99 »

tambourine_man wrote: post #6

Audio is not working for the three keys on iOS. Amazing content as always otherwise.

I'm not getting any audio on Linux/Chrome (Debian.) No audio from this page either https://d21u3ic0kp9e91.cloudfront.net/choir/04/index.html, much to the dismay of our grandchildren.

I checked system audio settings and see nothing muted.

Re: Sound

#143

Post by ByThyGrace »

_qua wrote: post #139

This reminds me of spending hours digging through Microsoft Encarta as a kid. It was full of cool animations and demos like this (though these are much better).

Makes you wonder if Wikipedia could be set for an interactive animation overhaul.

Re: Sound

#149

Post by alberth »

PostOnce wrote: post #79

This man needs a genius grant, and this is about the 6th time I've thought this. Any one of these pages would be a feat, an achievement to be proud of, but as a collection, it forms one of the greatest educational resources of its type that I have known. These things can give you more intuition about a subject in 45 minutes than a textbook might be able to in 3 months, because it's interesting and not dry. I wish I h…

For the HN crowd who like to roll with JS turned off, you’re missing out on great interactive illustrations.

Re: Sound

#150

Post by 8n4vidtmkvmk »

OMG yes!!!!!! there was a post on sound years ago that was excellent, a bit similar to this, but i could never find it again. i genuinely want to know more about how sound works. looking forward to reading this
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