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54309

Re: underwater stereo recordings and phase

David, Thanks for teaching us all some things about sound. I have to admit that I have just learned from your explanations about reflected sound from an air
robb_nichols
4:07 PM
#54309
 
54308

September Bird Song of the Month

September Bird Song of the Month Live! http://nevillerecording.com/nr00b.php
Neville Recording
2:17 PM
#54308
 
54307

Re: New study shows traffic noise is disruptive to wildlife

Wow, it is definitely pretty dramatic that a cross-section such as this has basically left the area, or at least not used it for nesting. Nothing else (birds)
BIRDING@...
11:07 AM
#54307
 
54306

Re: New study shows traffic noise is disruptive to wildlife

Here is a list of typical suspects that IÆve recorded from year to year, when conditions have been more or less within a particular dynamic range of precip
Bernie Krause
Sep 2
#54306
 
54305

Re: New study shows traffic noise is disruptive to wildlife

Bernie, It would be interesting to know which species used the Valley, and have since moved on (I know that's beyond this conversation). Am I correct in
BIRDING@...
Sep 2
#54305
 
54304

Re: underwater stereo recordings and phase

... Dan, Try it and report back. The theory says that when close the negative reflection would counter the direct signal. My experience (some time ago) was
madl74
Sep 1
#54304
 
54303

Re: underwater stereo recordings and phase

... Jim, I covered that in n earlier email. Underwater, with or without a mic, the surface antiphase reflection partially cancels out the direct sound in the
madl74
Sep 1
#54303
 
54302

Re: New study shows traffic noise is disruptive to wildlife

In Sonoma, CaliforniaÆs Valley of the Moon, there was no birdsong this spring or summer. None. A combo of global warming (the spring season occurs on average
Bernie Krause
Sep 1
#54302
 
54301

Re: New study shows traffic noise is disruptive to wildlife

Charles, Obviously traffic noise interferes with communication among birds, creating problems for defense of territory and self, as well as for mating
BIRDING@...
Sep 1
#54301
 
54300

Re: underwater stereo recordings and phase

... Thanks for this, David, very helpful. I’ve only thrown my mics into vernal pools and ditches, so they just fall on the bottom and become boundary mics, I
Dan Dugan
Sep 1
#54300
 
54299

New study shows traffic noise is disruptive to wildlife

http://m.pnas.org/content/early/2015/08/27/1504710112 "Decades of research demonstrate that roads impact wildlife and suggest traffic noise as a primary cause
J. Charles Holt
Sep 1
#54299
 
54298

Re: underwater stereo recordings and phase

Hey all, Everything David is saying is impeccably correct. Pretty sure:). I 'think' what Russell is asking is what practical difference does it make. Or
Jim Wells
Sep 1
#54298
 
54297

Re: underwater stereo recordings and phase

... Russell, A reflection takes place at a boundary where the speed of sound (or light) changes. For a reflection from slow to fast, most of the energy is
madl74
Sep 1
#54297
 
54296

Re: Sony PCM 50 Freezing

Thanks for that information. I was hoping for a nice easy solution. No such luck. I have had it for some years and is used most weekends, I guess it doesn't
D Secomb
Aug 31
#54296
 
54295

Re: underwater stereo recordings and phase

Russell, Tackling these in reverse order: lambda = v / f therefore the higher the velocity the longer the wavelength. See
Russell Dawkins
Aug 31
#54295
 
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