Talk:Sound from ultrasound
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[edit] Text transferred from Talk:HyperSonic Sound
[edit] Cleanup
Here are some things I think need fixing up:
- Needs more reference -- the only references seems to be to companies which are trying to sell this technology.
- Needs a better description of how it works -- from what I remember, sound usually adds linearly, so interference of ultrasonic sources shouldn't give audible frequencies. Why is this not the case?
Also there are a few more minor points. I would fix these if the above was fixed.
- The statement that ultrasound does not diffract is not strictly true -- this could be expanded.
- Grammar is poor in some sections.
Keithdunwoody 01:52, 4 March 2006 (UTC)
I rewrote the second paragraph, but this is the only place I actually changed facts:
original: "so it seems to the [listener] that the sound appears to be emanating from himself/herself."
I'm pretty sure that's incorrect. It should only sound like it's coming from oneself if the beam is hitting their body, not if it's hitting another object, in which case it would sound like it's coming from that object.
This is an assumption (sorry). Megatronium 05:46, 23 April 2006 (UTC)
It definitely still needs more general cleanup. More references, and better grammar, fixing things like fragments starting with "like." --Howdybob 13:04, 1 July 2006 (UTC)
[edit] NPOV
I've placed the NPOV tag on this article. As it stands, the article is extremely poor, and is largely an advertisemant for a product. The fact that the article only uses the trademarked name for American Technology Corporation's process, rather than the generic name (I scarcely think that the US government was doing research under this title) makes the article as it stands an advertisement. Given that the cleanup tag has been on this article for two months now, I would also support deletion. AKAF 07:40, 31 May 2006 (UTC)
[edit] Fixed
I debolded the blatent bolding / advertising of the name. Should have no more point of view problems! I hope this helps. Stovetopcookies 08:10, 29 June 2006 (UTC)
The first instance of the title should be bold though. I stil have other concerns. See below. --Howdybob 12:35, 1 July 2006 (UTC)
[edit] NPOV, merge ideas
This article has some info that might be relevant but it's still looks like an ad, apparently using a trademark of the American Technology Corporation for the article title. Per above, the military didn't call it "Hypersonic sound" when researching did it? It should either be deleted or re-written in more general terms, with a mention of "Hypersonic Sound". There should be a general name for the method & article, something like "Ultrasonic intermodulation".
It should either be rewritten a bit & renamed, or merged, maybe with Loudspeaker#Converting_ultrasound_to_audible_sound or Directional Sound.
I'm putting back a different NPOV tag because there's more to it than the bold text. It needs to be made clear whether HyperSonic Sound is a trademark, whether the "audio spotlight" is the same thing or another company's implementation, and what other research has been done by others. It should be moved to a more general, neutral title. --Howdybob 12:58, 1 July 2006 (UTC)
I've edit this heavily and think it should stand as HyperSonic Sound as this is likely to become the name for it , much as hoover/dyson became both the commercial and descriptive name for a vacuum cleaner. There is much to be found that refers to Hypersonic sound - though i cant find a ref of a patent for that name from ATC. i am unsure how to edit the contents bit as i would like to add a criticism section regarding ethics of using hypersound.
--Sparkymarkx, 21 August 2006
This has since been reedited - once by an anonymous collaborating on my last edit and again by me today to clean sentence structure up a bit and link to ultrasound article. I think NPOV is fixed now. Sparkymark x 10 September 2006.
[edit] Merged
- I merged from HyperSonic Sound and the relevant sections of loudspeaker and of Directional Sound. Anthony Appleyard 20:00, 10 September 2006 (UTC)
- The word hypersonic already has a meaning: "much faster than sound". Anthony Appleyard 20:37, 10 September 2006 (UTC)
