Speech feature extraction using linear Chirplet transform and its applications*

ABSTRACTMost speech processing models begin with feature extraction and then pass the feature vector to the primary processing model. The solution's performance mainly depends on the quality of the feature representation and the model architecture. Much research focuses on designing robust deep...

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Main Authors: Hao Duc Do, Duc Thanh Chau, Son Thai Tran
Format: Article
Language:English
Published: Taylor & Francis Group 2023-07-01
Series:Journal of Information and Telecommunication
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/24751839.2023.2207267
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author Hao Duc Do
Duc Thanh Chau
Son Thai Tran
author_facet Hao Duc Do
Duc Thanh Chau
Son Thai Tran
author_sort Hao Duc Do
collection DOAJ
description ABSTRACTMost speech processing models begin with feature extraction and then pass the feature vector to the primary processing model. The solution's performance mainly depends on the quality of the feature representation and the model architecture. Much research focuses on designing robust deep network architecture and ignoring feature representation's important role during the deep neural network era. This work aims to exploit a new approach to design a speech signal representation in the time-frequency domain via Linear Chirplet Transform (LCT). The proposed method provides a feature vector sensitive to the frequency change inside human speech with a solid mathematical foundation. This is a potential direction for many applications. The experimental results show the improvement of the feature based on LCT compared to MFCC or Fourier Transform. In both speaker gender recognition, dialect recognition, and speech recognition, LCT significantly improved compared with MFCC and other features. This result also implies that the feature based on LCT is independent of language, so it can be used in various applications.
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spelling doaj.art-993f6de1fc2046089139142a26c22c572023-07-27T11:47:07ZengTaylor & Francis GroupJournal of Information and Telecommunication2475-18392475-18472023-07-017337639110.1080/24751839.2023.2207267Speech feature extraction using linear Chirplet transform and its applications*Hao Duc Do0Duc Thanh Chau1Son Thai Tran2Vietnam National University, Ho Chi Minh City, VietnamVietnam National University, Ho Chi Minh City, VietnamVietnam National University, Ho Chi Minh City, VietnamABSTRACTMost speech processing models begin with feature extraction and then pass the feature vector to the primary processing model. The solution's performance mainly depends on the quality of the feature representation and the model architecture. Much research focuses on designing robust deep network architecture and ignoring feature representation's important role during the deep neural network era. This work aims to exploit a new approach to design a speech signal representation in the time-frequency domain via Linear Chirplet Transform (LCT). The proposed method provides a feature vector sensitive to the frequency change inside human speech with a solid mathematical foundation. This is a potential direction for many applications. The experimental results show the improvement of the feature based on LCT compared to MFCC or Fourier Transform. In both speaker gender recognition, dialect recognition, and speech recognition, LCT significantly improved compared with MFCC and other features. This result also implies that the feature based on LCT is independent of language, so it can be used in various applications.https://www.tandfonline.com/doi/10.1080/24751839.2023.2207267speech representationtime-frequency domainlinear chirplet transforminstantaneous frequencyspeech processing
spellingShingle Hao Duc Do
Duc Thanh Chau
Son Thai Tran
Speech feature extraction using linear Chirplet transform and its applications*
Journal of Information and Telecommunication
speech representation
time-frequency domain
linear chirplet transform
instantaneous frequency
speech processing
title Speech feature extraction using linear Chirplet transform and its applications*
title_full Speech feature extraction using linear Chirplet transform and its applications*
title_fullStr Speech feature extraction using linear Chirplet transform and its applications*
title_full_unstemmed Speech feature extraction using linear Chirplet transform and its applications*
title_short Speech feature extraction using linear Chirplet transform and its applications*
title_sort speech feature extraction using linear chirplet transform and its applications
topic speech representation
time-frequency domain
linear chirplet transform
instantaneous frequency
speech processing
url https://www.tandfonline.com/doi/10.1080/24751839.2023.2207267
work_keys_str_mv AT haoducdo speechfeatureextractionusinglinearchirplettransformanditsapplications
AT ducthanhchau speechfeatureextractionusinglinearchirplettransformanditsapplications
AT sonthaitran speechfeatureextractionusinglinearchirplettransformanditsapplications