Title

Application of Speech Recognition to African Elephant (Loxodonta Africana) Vocalizations

Grant Title

Dr. Dolittle Project: A Framework for Classification and Understanding of Animal Vocalizations

Document Type

Conference Proceeding

Publication Date

4-2003

Source Publication

IEEE International Conference on Acoustics, Speech and Signal Processing, 2003: ICASSP; Hong Kong, China, April 6-10, 2003

Source ISSN

0-7803-7663-3, 1520-6149

Abstract

This paper presents a novel application of speech processing research, classification of African elephant vocalizations. Speaker identification and call classification experiments are performed on data collected from captive African elephants in a naturalistic environment. The features used for classification are 12 mel-frequency cepstral coefficients plus log energy computed using a shifted filter bank to emphasize the infrasound range of the frequency spectrum used by African elephants. Initial classification accuracies of 83.8% for call classification and 88.1% for speaker identification were obtained. The long-term goal of this research is to develop a universal analysis framework and robust feature set for animal vocalizations that can be applied to many species.

Document Rights and Citation of Original

Published as a part of the proceedings of the conference, IEEE International Conference on Acoustics, Speech and Signal Processing, 2003: ICASSP; Hong Kong, China, April 6-10, 2003, I-484 - I-487. DOI.