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chihuahuab 2013-5-9 09:47 AM

Sound waves

I have a a question about sound waves, hope you could help!
Can you produce traveling wave in a pipe instrument (e.g. flute) instead of standing wave? If so, is it true that you can produce any frequency you want (not restricted to 1st harmonics, 2nd harmonics... etc).

Thanks

[[i] 本帖最後由 chihuahuab 於 2013-5-9 10:54 AM 編輯 [/i]]

↗亢龍無悔↙ 2013-5-9 01:07 PM

do you think the flute has an opening end or closing end?  

For a opening end system, do you think it is possible to produce a standing wave if the one end only?

chihuahuab 2013-5-10 04:18 PM

[quote]原帖由 [i]↗亢龍無悔↙[/i] 於 2013-5-9 01:07 PM 發表 [url=http://www.discuss.com.hk/redirect.php?goto=findpost&pid=360935555&ptid=21880116][img]http://www.discuss.com.hk/images/common/back.gif[/img][/url]
do you think the flute has an opening end or closing end?  

For a opening end system, do you think it is possible to produce a standing wave if the one end only? [/quote]

Thanks for answering my question.

I think I should have asked differently, I do know that antinode must exist at open end and node at closed end but I am actually interested in the transition between harmonics. I don't think it can make a complete discrete jump from one harmonics to another like how an electron changes its energy level. So if it can't, does it mean that it exists as a traveling wave during the short and sharp transition?  And does it produce the intermediate frequencies (even for an extremely short amount of time)?
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