On 02/19/2012 07:57 PM, Robin Gareus wrote: > On 02/19/2012 07:33 PM, Renato wrote: >> On Sun, 19 Feb 2012 17:53:37 +0000 >> Fons Adriaensen <fons@xxxxxxxxxxxxxx> wrote: >> >>> On Sun, Feb 19, 2012 at 04:11:55PM +0100, Renato wrote: >>> >>>> I'd like to understand how the sensors work, but his site doesn't >>>> seem to go much in depth on this... it says the sensors register >>>> the sounds of the undercutaneous muscles. But are those even in the >>>> audio frequency realm? And how would you capture them, with a piezo >>>> contact mic? >>> >>> There was a paper on this at LAC 2011, see the proceedings. >>> <http://lac.linuxaudio.org/2011/?page=download> >>> >> >> again, thanks Fons. For the lazy, the actual sensor device is described >> at page 160 (170 of the pdf) of the proceedings pdf [1]. It's basically >> an electret condenser microphone, kept in place by a silicon case that >> should also filter out external noise. So he's (knowingly) leaving out >> part of the spectrum, since as he describes earlier in the article >> muscle sounds are in the 4-45hz range and those mics go down to only >> about 20. >> >> I must say I'm quite surprised to learn muscles make loud enough >> sounds to be used this way... and this project of his looks freaking >> cool IMO. > > Video of the presentation and direct link to the PDF: > http://lac.linuxaudio.org/2011/video.php?id=17 > http://lac.linuxaudio.org/2011/papers/30.pdf coincidence? http://www.gtcmt.gatech.edu/news/marco-donnarumma%E2%80%99s-xth-sense-named-world%E2%80%99s-most-innovative-new-musical-instrument Congrats, Marco! robin >> renato >> >> [1] http://lac.linuxaudio.org/2011/download/lac2011_proceedings.pdf >> _______________________________________________ >> Linux-audio-user mailing list >> Linux-audio-user@xxxxxxxxxxxxxxxxxxxx >> http://lists.linuxaudio.org/listinfo/linux-audio-user > > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user@xxxxxxxxxxxxxxxxxxxx > http://lists.linuxaudio.org/listinfo/linux-audio-user _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
