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Acousonde announcement

Subject: Acousonde announcement
From: Dave Mellinger <>
Date: Mon, 16 Aug 2010 14:12:20 -0700
The Acousonde is a marine animal tag capable of making acoustic recordings, as 
well as gathering other information.  This message is forwarded; please respond 
via the website below, not me.  -Dave

Subject: Acousonde Announcements Message
Date: Sun, 15 Aug 2010 17:00:20 -0600
From: Acousonde Announcements <>

Development of the Acousonde miniature marine acoustic recorder reached two 
milestones this month.

First, all planned functionality has finally been incorporated in the software operating 
system.  Of particular interest to the animal-tag community is the recording of 
"auxiliary" channels:  pressure, temperature, 3D acceleration, and 3D compass.  
Others will welcome the ability to record on a timed duty cycle to extend deployment 
life.  The work isn't done; performance improvements remain, for example raising the 
current maximum 116-kHz acoustic sample rate to 232 kHz (high-frequency channel only) and 
the maximum auxiliary rate from 20 Hz to 40 Hz.  But all originally-intended 
functionality is now in place.

Second, we have finished designing and begun fabricating the first units of the dedicated 
animal-tag "Acousonde 3B".  The 3B is a complete mechanical redesign of the 
Acousonde to integrate attachment and flotation with the tag, rather than requiring the 
user to add them after procurement.  By designing the tag, attachment and flotation 
together we have made the overall package much smaller and more hydrodynamic than in the 

Greeneridge Sciences president Charles Greene has brought a mockup of the 
Acousonde 3B to the second annual conference on the Effects of Noise on Aquatic 
Life in Cork, Ireland, where Greeneridge has a booth.  If you are attending as 
well, please ask him to show it to you!

Best wishes,
--Bill Burgess

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