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Re: Humpback talk (was: Hydrophone Recording)

Subject: Re: Humpback talk (was: Hydrophone Recording)
From: "vickipowys" vpowys
Date: Wed Mar 10, 2010 8:04 pm ((PST))
Wow!  Amazing sounds David, and how adventurous to record from a sea- 
going kayak 2 miles from shore.

In looking at the H2a hydrophones online I see that they make an  
adapter lead to 'use H2a hydrophones with plug-in-powered 3.5  
microphone jacks'.  Does this mean the hydrophones could also be  
powered by PIP?

Good luck for your future expeditions.

Vicki Powys



On 11/03/2010, at 9:57 AM, Kawika wrote:

> Aloha Nature recordists, I pick up this thread from a few weeks  
> ago, having finally gotten out in a two-man sea kayak as I had  
> planned. We headed out South from Kaua'i and I dropped the 'phones  
> in about 300 feet of water about 2 miles out. Here is a condensed  
> and stitched together sample of my result--
>
> http://soundshawaiian.com/mp3/Hump%20more%20condensed%20Mixdown.mp3
> or  http://tinyurl.com/ykrqr9l
>
> A very exciting time it was. I got about 45 min of this  
> conversation, not sure how far away the animals were, though we saw  
> adults within 200 meters.
>
> You can hear other whales more distant.
>
> Gear: Sony D50, ART Phantom II power supply, Aquarian H2a XLR  
> Hydrophones with 10 m cables from Rob Nichols. I didn't dare take  
> my SD 702 for fear of water damage.
> Precautions: I kept the gear enclosed in a zip-loc inside a  
> waterproof dry-bag until conditions felt right. Then worked the  
> controls inside the dry bag. All worked well until the wind picked  
> up and I had to close up again, especially working back upwind as  
> the wind turned off-shore. I'm going out again, this time to drift  
> down-wind a few miles.
> Post editing included 20db lowcut (recording was done without low  
> cut), 10 db cut above 2500hz, and several passes to reduce hiss.
>
> I like these new XLR hydrophones very much. I may need longer  
> cables to get deeper, as I think a lot of the hiss is from surface  
> noise, and maybe some distant snapping shrimp. The mics are quieter  
> in self-noise than this recording indicates.
> Next time I'll also spread the phones more by suspending from bow  
> and stern, about 16 feet, whereas this time the spread was only 6  
> feet.
>
> I see a lot of hydrophone recording in my future, adding another  
> dimension to my Hawai`i soundscape collecting. Really fun!
>
> Aloha,
> David
>
>
>






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