one thing is definitely working: to analyze a whole track and get values in a spreadsheet i found a tutorial here: http://www.designcontest.net/tutorials/spectrumanalyser it is meant for flash, but it shows pretty well how to export useful data with some work, an animation from GH and some editing with a video editor may result in a nice synchronized video
On Jan 25, 5:17 pm, visose <[email protected]> wrote: > Thanks baldino, I'm trying it right now. You mean exporting one line > at a time so we can use it in real time? I don't think this method > would be the most convenient since every time the file is written > there is some amount of lag. In the documentation it says something > about using WM_COPYDATA messages to transfer data between active > programs, but it seems that even this method is not suitable for real > time since it has some milliseconds of lag. But the biggest lag of all > will probably be when the geometry is generated. > Still, I'm waiting for Damien Alomar to post the "part 2" of the excel > to grasshopper realtime connection. I'd like to try to connect my > digital piano to grasshopper real time. Even if it has some huge > amounts of lag, it can still be fun. > > On Jan 25, 3:43 pm, baldino <[email protected]> wrote: > > > i just found this piece of > > software:http://freenet-homepage.de/dl4yhf/spectra1.html > > > it does real-time spectrum anaylsis, and can export data to a text > > file (in real-time) but i haven't figured out yet how to limit the > > export to a single line.. (or just a few) right now, it creates a new > > line for each time interval and the file size rapidly gets huge ! > > > On Jan 25, 1:50 pm, visose <[email protected]> wrote: > > > > It's called "Wavosaur". Thanks for bumping this thread. The method I > > > came up with is probably not the best way, there has to be someone > > > that knows how to do this properly. Maybe someone knows of a better > > > (free) tool that allows more export options from a sound wave to a > > > text file. Or someone knows how to read sound waves from a scripting > > > component and get the proper data. > > > > On Jan 25, 1:16 pm, dingle <[email protected]> wrote: > > > > > visose, > > > > which software did you use to translate the wav to text? > > > > > On Nov 30 2008, 12:53 am, visose <[email protected]> wrote: > > > > > > Here's another test:http://www.youtube.com/watch?v=wK7xFA-5YZc > > > > > I'm still a bit paranoid as if it matches the music. I think it does, > > > > > but it may be my brain trying to make sense of it. > > > > > I lofted a bunch of circles with their radii being on the sound wave > > > > > values. This time instead of sampling all the values of the sound > > > > > wave, i only loft the crests (when n-1 < n > n+1). The surface that > > > > > changes color does sample all the values. To follow the music the red > > > > > ring (not the colored surface). > > > > > > On Nov 29, 8:11 pm, visose <[email protected]> wrote: > > > > > > > Your post got me curious. I know you can at least easily read simple > > > > > > text files from a scripting component. So i thought, maybe there's a > > > > > > piece of software that can export a text file with a list of decibel > > > > > > values or any other parameter from a wave file. I couldn't find it, > > > > > > but i found another piece of software that saves wave files as a > > > > > > text > > > > > > file. This text file is basically a really big list of numbers > > > > > > (44100 > > > > > > numbers for every second for a standard 44100hz wave file). > > > > > > So I opened an mp3 file, reduced it to 15hz (to match the frames per > > > > > > second of an animation) saved it as a txt file. > > > > > > In grasshopper i read this list of numbers with a scripting > > > > > > component > > > > > > linked the values to the radius of a sphere. > > > > > > > Maybe someone knows what those values correspond exactly, i really > > > > > > don't know what I'm doing, but i 'think' the audio matches a little > > > > > > bit the change of radius of the sphere (it may very well be > > > > > > placebo):http://grasshopper3d.googlegroups.com/web/audiograsshopper.avi > > > > > > > On Nov 29, 12:50 pm, dodo <[email protected]> wrote: > > > > > > > > Hi David, > > > > > > > > I know this sounds a little odd, but I used to do a project > > > > > > > during my > > > > > > > student time hooking up a sound file to a deformer force in > > > > > > > 3dsmax to > > > > > > > create a shape deformation. Do you think it would be possile to > > > > > > > add a > > > > > > > sound component to your list. I think it would be great to have > > > > > > > the > > > > > > > ability to add a sound file to drive a defomation or a value > > > > > > > inside > > > > > > > GH. So while the sound get's louder or more intense the value > > > > > > > will > > > > > > > increase. Somthing to make an "equilizer" Shape inside GH. A > > > > > > > component > > > > > > > that will be able to manpilate a shape inside GH using sound. > > > > > > > > just an idea, thanks oliver
