Convolutional Neural Networks and x-vector Embedding for DCASE2018 Acoustic Scene Classification Challenge

Hossein Zeinali; Jan Cernocky; Lukas Burget

Convolutional Neural Networks and x-vector Embedding for DCASE2018 Acoustic Scene Classification Challenge

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arxiv 1810.04273 v1 pith:PAYSFG56 submitted 2018-10-01 eess.AS cs.SD

Convolutional Neural Networks and x-vector Embedding for DCASE2018 Acoustic Scene Classification Challenge

Hossein Zeinali , Lukas Burget , Jan Cernocky This is my paper

classification eess.AS cs.SD

keywords differentclassificationacousticchallengeconvolutionalfeaturesneuralscene

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In this paper, the Brno University of Technology (BUT) team submissions for Task 1 (Acoustic Scene Classification, ASC) of the DCASE-2018 challenge are described. Also, the analysis of different methods on the leaderboard set is provided. The proposed approach is a fusion of two different Convolutional Neural Network (CNN) topologies. The first one is the common two-dimensional CNNs which is mainly used in image classification. The second one is a one-dimensional CNN for extracting fixed-length audio segment embeddings, so called x-vectors, which has also been used in speech processing, especially for speaker recognition. In addition to the different topologies, two types of features were tested: log mel-spectrogram and CQT features. Finally, the outputs of different systems are fused using a simple output averaging in the best performing system. Our submissions ranked third among 24 teams in the ASC sub-task A (task1a).

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Acoustic Scene Classification Using Fusion of Attentive Convolutional Neural Networks for DCASE2019 Challenge
eess.AS 2019-07 unverdicted novelty 2.0

Fusion of VGG-like 2D CNN, Light-CNN, and x-vector 1D CNN with self-attention pooling on 256-dim log Mel-spectrograms, trained on 4-fold splits and combined with multiple fusion strategies for DCASE2019 Task 1.