Re: [Sursound] Plane waves from natural sources...

2012-09-24 Thread Fons Adriaensen
On Mon, Sep 24, 2012 at 09:15:24PM +, Fons Adriaensen wrote: > which is 2 * pi / d, i.e. proportional to 1 / d, hence -3dB for Oops, pi / d of course. Ciao, -- FA A world of exhaustive, reliable metadata would be an utopia. It's also a pipe-dream, founded on self-delusion, nerd hubris and

Re: [Sursound] Plane waves from natural sources...

2012-09-24 Thread Fons Adriaensen
On Mon, Sep 24, 2012 at 07:49:42PM +0200, Jörn Nettingsmeier wrote: > on the other hand, i know that roads and highways are treated as > line sources as well for the purpose of emission control, i.e. with > 3dB attenuation per doubling of distance. > > maybe someone can explain why this should be

Re: [Sursound] Plane waves from natural sources...

2012-09-24 Thread Helmut Oellers
calculation based at statistic middle value. Greetings Helmut -- next part -- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20120924/2be4783e/attachment.html> ___ Su

Re: [Sursound] Plane waves from natural sources...

2012-09-24 Thread Dave Malham
Interesting point. I guess it has to do with statistics - but I don't know. Dave On 24 September 2012 18:49, Jörn Nettingsmeier wrote: > On 09/24/2012 10:58 AM, Dave Malham wrote: >> >> >> On 23/09/2012 11:19, Fons Adriaensen wrote: >>> >>> On Sun, Sep 23, 2012 at 09:31:30AM +0100, Augustin

[Sursound] Plane waves from natural sources...

2012-09-24 Thread Jörn Nettingsmeier
On 09/24/2012 10:58 AM, Dave Malham wrote: On 23/09/2012 11:19, Fons Adriaensen wrote: On Sun, Sep 23, 2012 at 09:31:30AM +0100, Augustine Leudar wrote: except its not quite the same effect. If I hear a plan(ish) wave in nature such as in thunder or a very distant giant waterfall I doubt ver

Re: [Sursound] Question about plane waves, and the precedence effect

2012-09-24 Thread Dave Malham
On 23/09/2012 11:19, Fons Adriaensen wrote: On Sun, Sep 23, 2012 at 09:31:30AM +0100, Augustine Leudar wrote: except its not quite the same effect. If I hear a plan(ish) wave in nature such as in thunder or a very distant giant waterfall I doubt very much if either would be a plane wave. We

Re: [Sursound] Question about plane waves, and the precedence effect

2012-09-24 Thread Dave Malham
Well, well, someone has actually started to put together a Hyper Dense Transducer Array Dave On 23/09/2012 09:35, Augustine Leudar wrote: by the way have any of you seen this : http://www.syntheticwave.de/HOLOPLOT_Loudspeaker_Modules.htm