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A comment on Acoustic Prism Invented at EPFL.

Re:Acoustic Prism Invented at EPFL by donquichotte on Thursday August 11, 2016 @04:33AM (#12266886)
I wonder whether this has any real-world applications, since the Fourier Transform is a well understood and easy to implement method for analyzing spectra digitally.
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Re:Acoustic Prism Invented at EPFL by raverbashing on Thursday August 11, 2016 @05:33AM (#12267008)
The question is: when can you not use the Fourier Transform (or it is really bad)?

I can think of situations when one frequency drowns the other in your transducer

Also this was built for the audible range (apparently), but it might have more interesting uses in different ranges or fluids

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Re:Acoustic Prism Invented at EPFL by dharma1 on Thursday August 11, 2016 @06:16AM (#12267120)
They mention using it for sonar in the paper
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