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Old 11th Oct 2017, 6:45 pm   #77
mark_in_manc
Octode
 
Join Date: Nov 2011
Location: Manchester, UK.
Posts: 1,872
Default Re: 'Cable Break In' - I never knew that!

Quote:
Originally Posted by russell_w_b View Post
It's yer eigentones, innit?
Eeeeh, eignenvalues (resonant frequencies) and eigenvectors (mode shapes) - that takes me back

I got Permanent Head Damage trying to 'do things' to those with signal processing and secondary sources, once upon a time. I like your bathroom experiment - I used to suggest it to students. Also relevant and bathroom related - my kids got some bathtime whistles whose pitch changes depending on the amount of water in them (which changes the length of the 1/4 wave air column). It's a funny demo to play one while tilting the thing through a range of angles. The pitch of the fundamental doesn't shift at all, which is a nice finger in the eye for walls-out-of-square critical listeners (though - that is one way around flutter echoes, before someone gives me the finger back again )
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