Bartosz, you're a legend! Thank you for these amazing articles!!
Sound
41–50 of 222 posts
Re: Sound
#42Ordinarily, I follow the HN best practice of clicking through to a link first rather than upvoting based solely on the headline and domain. Seeing there's a new Bartosz Ciechanowski explainer might be my one exception to this rule.
https://news.ycombinator.com/from?site=ciechanow.ski
A link to all the HN submissions from ciechanow.ski
Re: Sound
#43Earlier quoted context omitted.
Wow. Such a profound insight could not get published for 15 years because others couldn’t grasp it. Including Lagrange! It’s an uncomfortable reminder of how essential reputation and credibility are in the machinery of science. ”The paper contained the controversial claim that any continuous periodic signal could be represented as the sum of properly chosen sinusoidal waves. Among the reviewers were two of history's…
> Lagrange had insisted that such an approach could not be used to represent signals with corners, i.e., discontinuous slopes, such as in square waves. Isn't that true though? You can only approximate it, right?
In practice, yes you can only approximate it, because in theory it requires an infinite series of sinusoidal waves. But since maths is all about the theory, Laplace's objections were silly.
(though I admit I don't know what the state of acceptance of infinite series was at that time)
Also, it's fine to cut off the infinite series of sinusoidal waves because all physical systems cut off around a given frequency, for example human hearing around ~20kHz.
Re: Sound
#44I'm starting to think Bartosz Ciechanowski is from another planet. Everything he does is the very best explainer on that subject.
I'd really like to learn to do what he does. It's always so impressive, clear, concise and comprehensive. I feel like everything he does is a perfect pedagogical modality. I just wish everyone could get on board, especially university professors and publishers.
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#45Quick babe wake up, new Ciechanowski intractable dropped.
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#46This guy!
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#47I'm really curious to know how he selects the topic of each article; the archive has quite a range!
This is the type of blog I aspire to make, one day
Re: Sound
#48Hmm, on Windows 10 Chrome/Firefox the demos with the movable ears don't work very well when the position changes. Both browsers output horrible audio in those sections.
edit: If I limit Firefox to 60fps (down from my display's 280hz) then it seems to work fine.
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#49What a neat switch from metric to imperial units! I wish more web pages had this.
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#50+1 for the recommendation for "The Scientist and Engineer's Guide to Digital Signal Processing" by Steven W. Smith. I spoke to Steven many years ago about his putting all of the book PDFs online for free and since then have recommended at least 5 university libraries to buy it because the students could get free copies of a great book that can be referenced in the library. FWIW the The Scientist and Engineer's Guide…
It's one of my favorite technical books. So simply explained, so full of engineering wisdom.