Researchers Make Mount Etna Sing
The Interfacer writes "Predicting eruptions will become easier now scientists are using technology to translate the patterns in a volcano's behaviour into sound waves.
"The research project, which brings together experts from Europe and Latin America, digitally collects geophysical information on seismic movements before using data sonification to transform them into audible sound waves, which can then be 'scored' as melodies. The resulting 'music' is then analysed for patterns of behaviour and used to identify similarities in eruption dynamics and so predict future activity."
These 'making music out of nature' studies always remind me of that space ship in Dirk Gently's Holistic Detective Agency by Douglas Adams. Where the ship was anaylysing all the maths of the planet, and turning it into beautiful music which was then given to one of the classical composers.
Having listened to the Etna sounds though its not quite Mozart. Both the audios are at the bottom of the article and not slashdotted yet. It'd be cool if they could explain what was happening at what points in the melodies. Also sounds a little like a 3-year old smashing a keyboard.
The point is to change the data to a format that is easier to process.
For example, if you just look at the wav spectrum or frequency spectrum of a piece of music, it's difficult to tell who was the composer. However, if you re-package the information into sounds, then it becomes much easier to analyse or identify, at least by humans.
Of course, this is the reverse of what they are doing, i.e. their original data is not sound-based, but the idea is similar, they are hoping that the volcano's data (which is a wave form of sorts) is easier to process in the form of sounds by human ears than by looking at the graphs.
How is what they're talking about not some subset of fourier analysis? Come on, recasting the data as sound waves? You mean, shifting the frequency domain from ELF to human-audible? What in the world is the point?
They must be using some software package originally written for audio guys, and are unaware that the "conversion" they are talking about is conceptually nothing more than editing the sampling rate constant in the datafile.
I am never surprised at the dearth of researchers competent in data analysis in our country.
It can be less efficient. It's not like they care, they're fucking around all day and collecting a paycheck while the rest of us pay to support them. Although they did invent the term "sonification technology" so at least they're providing us with a little entertainment. I know I laughed when I read that line. What a bunch of pure bullshit.
And incidentally DANTE seems oblivious that the Dante project by NASA was a multilegged robot descending by rope into a volcanic crater.
I don't mean to overshadow their scientific achievements but lack of memory by networked prdroids bugs me.