On Mon, 04 Feb 2008 17:01:59 -0500 marius schebella marius.schebella@gmail.com wrote:
hi andy, the samples sound very complex already, how did you create them? I had more the impression of explosions, though, than thunder.
Yes, interesting feedback. Theres three models I've got atm. The Wright Mendorp and N-Wave model are expensive so I can only render with a certain density. To get close ups with a proper BANG! you need a lot of density. Where I fill in with noise based models (cheating) it loses the detail.
But the aftershocks and late reflections are sounding okay I think. I'm trying two ways, one with a giant multi-tap and filters, which is like a monster FIR filter, and another using convolution in Csound. Not sure which is best yet. Definitely not real-time models, but they could possibly be simplified for real-time execution.
regarding books, do you know if any of these books are available as pdfs at all? otherwise do you want paper copies??? at least the second article is available online at http://www.nap.edu/openbook.php?record_id=898&page=46 marius.
Nice one!! Good find Marius. Obviously pdfs are good because I can copy and paste refs and search, but thanks for finding me A.A Few. Will read this one tonight.
best,
Andy
Andy Farnell wrote:
Any feedback appreciated (aesthetic criticism most welcome) on some designs done in Pd.
http://www.obiwannabe.co.uk/sounds/effect-synthetic-thunder-21.mp3 http://www.obiwannabe.co.uk/sounds/effect-synthetic-thunder-34.mp3 http://www.obiwannabe.co.uk/sounds/effect-synthetic-thunder-57.mp3
If anyone has a copy of these papers I would be very grateful. I can't afford to pay the gatekeepers of knowledge.
H. E Bass, Propagation of Thunder Through the Atmosphere Acoust.soc. Am. 67, 1959-1966 (1980)
A.A. Few, "Acoustic Radiations from Lightning" CRC Handbook of Atmospherics, pp. 257-290. Vol. 2, edited by H. Volland (1982)
H.L. Brode, The Blast Wave in Air Resulting from a High Temperature High Pressure Sphere of Air" Res. Mem. RM-1825-AEC, The Rand Corporation, SantaMonica, CA {1956).
I am working with Ribner and Roy and Angelo Farinas papers right now, kindly given to me by another researcher.
cheers, Andy