Final Report on the Digital Audio Capture and Identification System (DACIS). SERDP: Advanced Biotelemetry for Resource Management on Military Lands (CS-759) Part II

Abstract

The Digital Audio Capture and Recognition System (DACIS) is designed to be an animal mounted (eventually bird borne) system which records and analyzes animal noises automatically. While the DACIS is fairly complex, it is actually an advanced acoustic sensor from a system point of view. The goal of the prototype system is to be able to identify with a high degree of reliability 4 animal calls from a single or multiple species. A very limited number of tests were performed on the DACIS with four types of wolf calls that were named growls, howls, whines and barks. A threshold value of 17 was found to be optimal yielding no false positives and 25% false negatives I early testing. Later tests showed up to 50% false negatives but still no false positives with a threshold of 20 or lower.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1998
Accession Number
ADA371033

Entities

People

  • Protagoras N. Cutchis

Organizations

  • Johns Hopkins University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Sensors
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Assembly Languages
  • Biotelemetry
  • Detectors
  • Digital Audio
  • Environment
  • Frequency
  • Global Positioning Systems
  • Identification
  • Identification Systems
  • Language
  • Physics Laboratories
  • Prototypes
  • Resource Management
  • Security
  • Telemetry
  • Two Dimensional

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