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Apr
30
revised Fourier transform of sampled data
edited example text
Apr
30
asked Fourier transform of sampled data
Apr
25
revised Issue with ListDensityPlot when using logarithmic scale
added 142 characters in body
Apr
25
answered Issue with ListDensityPlot when using logarithmic scale
Apr
24
comment Issue with ListDensityPlot when using logarithmic scale
Added another download link that hopefully does the trick.
Apr
24
revised Issue with ListDensityPlot when using logarithmic scale
added download link that actually works
Apr
24
comment Issue with ListDensityPlot when using logarithmic scale
1-click-hoster aren't what they were used to be anymore... until I find another one that actually works you can try dl.dropboxusercontent.com/u/74966785/SaschaData.zip
Apr
24
revised Issue with ListDensityPlot when using logarithmic scale
added 2 characters in body
Apr
24
asked Issue with ListDensityPlot when using logarithmic scale
Mar
21
comment Only perform a symbolic differentiation once
Have you tried to create a non global variable inside your function that stores the derivative? You could then use replacement rules to call upon the derivative.
Mar
21
comment Graphical representation of a moving sound source
unfortunately they want a .pdf-file and I suspect just for the sake of printing it on top of that. (And I currently don't know if the hassle of getting 3D data from Mathematica to .pdf is worth the hassle anyway, meaning that I suspect there to be some kind of quality issue, color, aliasing etc.)
Mar
21
comment Graphical representation of a moving sound source
I added a picture of the microphone arrangement. I guess they are pretty directional just due to their form factor:)
Mar
21
revised Graphical representation of a moving sound source
added picture of microphone arrangement
Mar
21
comment Graphical representation of a moving sound source
Looking at your graphic I came to think it would be awesome for actual presentation to print a banner with the data in 2D and then wrap it up to get a cylinder barrel of paper much like your plot. You could then stick your head in the ring and view the data in relation to its actual physical position. Sad that I don't have to present it though (it's only a report to be handed in) :)
Mar
20
comment Graphical representation of a moving sound source
I am sorry but I have to disappoint you, it's rather far off. They were just a few centimetres apart, but as illustrated in the sketch above they are positioned with a 90° offset. I have a second .wav- file obtained with a KEMAR dummy-head that I will post tomorrow if that is deemed interesting. There the amplitude difference is not as characterising as in the measurement with two standard microphones. However the time lag is more apparent as far as I can tell from just looking at it (didn't try your plot on it yet).
Mar
20
revised Graphical representation of a moving sound source
Rid the world of another instance of archaic unit convention:P
Mar
20
suggested approved edit on Graphical representation of a moving sound source
Mar
20
revised Graphical representation of a moving sound source
Rid the world of another instance of archaic unit convention:P
Mar
20
suggested approved edit on Graphical representation of a moving sound source
Mar
20
comment Graphical representation of a moving sound source
What Stefan means is that one fails to fine a definition of corr when looking at your code.