ENGLISH    
 
  中国科学院    
 
 
     
 
首 页  
组织机构
科研成果
研究队伍
研究生培养
国际交流
信息公开
人才招聘
    现在位置:首页 > 学术报告
 

 

Academy of Mathematics and Systems Science, CAS
Colloquia & Seminars

Speaker:

Dr. Yin Xian, Hong Kong Univesity of Scientce and Technology

Inviter: 袁亚湘
Title:
DCTNet for Audio Signal Classification
Time & Venue:
2017.9.12 16:30-17:30 Z311
Abstract:

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 results show that the A-DCTNet and Recurrent Neural Networks (RNN) achieve state-of-the-art performance in bird song classification rate, and improve artist identification accuracy in music data. They demonstrate A-DCTNet's applicability to signal processing problems.

 

 

附件下载:
 
 
【打印本页】【关闭本页】
 
研究院电子政务平台    中科院邮件系统    图书馆    会议服务平台
 
新闻动态 | 学术期刊 | 创新文化 | 党群园地 | 科学传播 | 校友会 | 网站地图 | 联系我们
版权所有 © 中国科学院数学与系统科学研究院  京ICP备05002806号  京公网安备110402500020号
地址:北京市海淀区中关村东路55号  邮政编码:100190
电话:86-10-82541777  Fax:86-10-82541972  Email:contact@amss.ac.cn