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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