From: "Acousonde Announcements" <info@acousonde.com>
Subject: Acousonde Announcements Message
Date: August 15th 2010

Dear friends and colleagues,

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 past.

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
http://www.acousonde.com

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