Abstract
Two hardware modules for animal bioacoustics monitoring based on the Analog Devices Sharc DSP are described. The RP2 Real-Time Processor connects to a PC via the USB port and can be used for signal detection and direct logging to disk. The SD2 Smart Datalogger is a battery-powered digital datalogger. The RP2 has two channels of A/D with 100-kHz bandwidth, two channels of D/A with 200-kHz bandwidth, eight digital inputs, eight digital outputs, and up to 64 MB RAM. The SD2 Smart Datalogger has two channels of A/D and D/A with a 25-kHz bandwidth on each channel, two digital I/O channels, and up to 64 MB RAM. The datalogger weighs 2 ounces and its dimensions are 5.6×7.6×1.8 cm3. DSP programming for both devices is accomplished through the use of a drag-and-drop interface for configuring detection circuits using a library of over 120 DSP components including digital filters, signal detectors, and memory operations. The use of the RP2 for detecting and recording animal sounds in the field will be described where sounds in given frequency bands are detected, time-stamped, and saved to memory or hard disk. [Work supported by NIH.]
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