Combined spectral and speech features for pig speech recognition.

The sound of the pig is one of its important signs, which can reflect various states such as hunger, pain or emotional state, and directly indicates the growth and health status of the pig. Existing speech recognition methods usually start with spectral features. The use of spectrograms to achieve c...

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Main Authors: Xuan Wu, Silong Zhou, Mingwei Chen, Yihang Zhao, Yifei Wang, Xianmeng Zhao, Danyang Li, Haibo Pu
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2022-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0276778
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author Xuan Wu
Silong Zhou
Mingwei Chen
Yihang Zhao
Yifei Wang
Xianmeng Zhao
Danyang Li
Haibo Pu
author_facet Xuan Wu
Silong Zhou
Mingwei Chen
Yihang Zhao
Yifei Wang
Xianmeng Zhao
Danyang Li
Haibo Pu
author_sort Xuan Wu
collection DOAJ
description The sound of the pig is one of its important signs, which can reflect various states such as hunger, pain or emotional state, and directly indicates the growth and health status of the pig. Existing speech recognition methods usually start with spectral features. The use of spectrograms to achieve classification of different speech sounds, while working well, may not be the best approach for solving such tasks with single-dimensional feature input. Based on the above assumptions, in order to more accurately grasp the situation of pigs and take timely measures to ensure the health status of pigs, this paper proposes a pig sound classification method based on the dual role of signal spectrum and speech. Spectrograms can visualize information about the characteristics of the sound under different time periods. The audio data are introduced, and the spectrogram features of the model input as well as the audio time-domain features are complemented with each other and passed into a pre-designed parallel network structure. The network model with the best results and the classifier were selected for combination. An accuracy of 93.39% was achieved on the pig speech classification task, while the AUC also reached 0.99163, demonstrating the superiority of the method. This study contributes to the direction of computer vision and acoustics by recognizing the sound of pigs. In addition, a total of 4,000 pig sound datasets in four categories are established in this paper to provide a research basis for later research scholars.
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spelling doaj.art-9d2e8cc2cd96435ab76325a8032133b82023-01-11T05:32:09ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-011712e027677810.1371/journal.pone.0276778Combined spectral and speech features for pig speech recognition.Xuan WuSilong ZhouMingwei ChenYihang ZhaoYifei WangXianmeng ZhaoDanyang LiHaibo PuThe sound of the pig is one of its important signs, which can reflect various states such as hunger, pain or emotional state, and directly indicates the growth and health status of the pig. Existing speech recognition methods usually start with spectral features. The use of spectrograms to achieve classification of different speech sounds, while working well, may not be the best approach for solving such tasks with single-dimensional feature input. Based on the above assumptions, in order to more accurately grasp the situation of pigs and take timely measures to ensure the health status of pigs, this paper proposes a pig sound classification method based on the dual role of signal spectrum and speech. Spectrograms can visualize information about the characteristics of the sound under different time periods. The audio data are introduced, and the spectrogram features of the model input as well as the audio time-domain features are complemented with each other and passed into a pre-designed parallel network structure. The network model with the best results and the classifier were selected for combination. An accuracy of 93.39% was achieved on the pig speech classification task, while the AUC also reached 0.99163, demonstrating the superiority of the method. This study contributes to the direction of computer vision and acoustics by recognizing the sound of pigs. In addition, a total of 4,000 pig sound datasets in four categories are established in this paper to provide a research basis for later research scholars.https://doi.org/10.1371/journal.pone.0276778
spellingShingle Xuan Wu
Silong Zhou
Mingwei Chen
Yihang Zhao
Yifei Wang
Xianmeng Zhao
Danyang Li
Haibo Pu
Combined spectral and speech features for pig speech recognition.
PLoS ONE
title Combined spectral and speech features for pig speech recognition.
title_full Combined spectral and speech features for pig speech recognition.
title_fullStr Combined spectral and speech features for pig speech recognition.
title_full_unstemmed Combined spectral and speech features for pig speech recognition.
title_short Combined spectral and speech features for pig speech recognition.
title_sort combined spectral and speech features for pig speech recognition
url https://doi.org/10.1371/journal.pone.0276778
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