Investigation of fixed-dimensional speech representations for real-time speech emotion recognition system

Wei Rao, Zhi Hao Lim, Qing Wang, Chenglin Xu, Xiaohai Tian, Eng Siong Chng, Haizhou Li

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

The real-time speech emotion recognition system is not only required to achieve the high accuracy, but also is needed to consider the memory requirement and running time in the practical application. This paper focuses on exploring the effective features with lower memory requirement and running time for the real-time speech emotion recognition system. To this end, the fixed-dimensional speech representations are considered because of its lower memory requirement and less computation cost. This paper investigates two types of fixed-dimensional speech representations which are high level descriptors and i-vectors and compares them with the conventional frame-based features low level descriptors in terms of accuracy and computation cost. Experimental results on IEMOCAP database show that although high level descriptors and i-vectors only contain the compact information comparing with low level descriptors, they achieve slightly better performance than low level descriptors. Experiments also demonstrate that the computation cost of i-vectors is much less than that of low level descriptors and high level descriptors.

Original languageEnglish
Title of host publicationProceedings of the 2017 International Conference on Orange Technologies, ICOT 2017
EditorsMinghui Dong, Lei Wang, Yanfeng Lu, Haizhou Li
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages197-200
Number of pages4
ISBN (Electronic)9781538632758
DOIs
StatePublished - 2 Jul 2017
Event5th International Conference on Orange Technologies, ICOT 2017 - Singapore, Singapore
Duration: 8 Dec 201710 Dec 2017

Publication series

NameProceedings of the 2017 International Conference on Orange Technologies, ICOT 2017
Volume2018-January

Conference

Conference5th International Conference on Orange Technologies, ICOT 2017
Country/TerritorySingapore
CitySingapore
Period8/12/1710/12/17

Keywords

  • High level descriptors
  • I-Vectors
  • Low level descriptors
  • Speech emotion recognition

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