publication . Conference object . Article . Preprint . 2016

Adaptive DCTNet for audio signal classification

Yin Xian; Yunchen Pu; Zhe Gan; Liang Lu; Andrew Thompson;
Open Access
  • Published: 12 Dec 2016
  • Publisher: IEEE
In this paper, we investigate DCTNet for audio signal classification. Its output feature is related to Cohen's class of time-frequency distributions. We introduce the use of adaptive DCTNet (A-DCTNet) for audio signals feature extraction. The A-DCTNet applies the idea of constant-Q transform, with its center frequencies of filterbanks geometrically spaced. The A-DCTNet is adaptive to different acoustic scales, and it can better capture low frequency acoustic information that is sensitive to human audio perception than features such as Mel-frequency spectral coefficients (MFSC). We use features extracted by the A-DCTNet as input for classifiers. Experimental resu...
free text keywords: Computer Science - Sound, Speech recognition, Feature extraction, Time–frequency analysis, Classification rate, Perception, media_common.quotation_subject, media_common, Audio signal, Audio signal classification, Recurrent neural network, Computer science, Signal processing
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