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Re: Infrasound recorder

Subject: Re: Infrasound recorder
From: "Bernie Krause" bigchirp1
Date: Wed Feb 10, 2010 1:18 pm ((PST))
If anyone has an old Sony TCD D-10 Pro II, they were reputed to be  
able to record as low as 3Hz. Did my first elephant recordings with  
them. Those and MKH20s. Worked fine. Got down to 15Hz with the ele- 
vox. Just about their bottom end.

Bernie

PS: I still have two.


On Feb 10, 2010, at 12:52 PM, Randy Perretta wrote:

> I'd be real careful. Very few recorders go that low. Most bottom out  
> at 20Hz. They usually have DC blockingcaps on the inputs. Bass  
> response is quite commonly associated in quality with something that  
> came from the wrong end of the elephant.
>
> I just Googled for digital recorder frequency response. After a few  
> pages, I gave up. 20Hz is it.
>
> Maybe someone knows of something portable that goes to DC.   
> Personally, and this is just me, Id be looking at scientific Or  
> seismic gear (there's plenty of infrasonic seismic gear out there  
> suitable for field work) rather than audio or contact the research  
> staff at a place that does whale research and see what they use.
>
> Good luck,
>
> Randy
> www.calmediaarts.com
>
>
>
>
>
>
> ------------------------------------
>
> "While a picture is worth a thousand words, a
> sound is worth a thousand pictures." R. Murray Schafer via Bernie  
> Krause
> Yahoo! Groups Links
>
>
>
>

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