A pseudo-cepstrum based short-term postfilter

Hong Kook Kim, Hong Goo Kang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We propose an adaptive short-term postfilter for speech coders by incorporating the properties of the pseudo-cepstrum. Since the proposed postfilter implicitly has a characteristic of tilt compensation, it does not require an additional tilt compensation filter as conventional techniques. We derive a relationship between the parameters of the proposed postfilter based on a minimum phase distortion criterion, and show a simple tuning procedure for the parameters. It is also shown that the postfilter can be implemented with a lower order. By applying this postfilter to several international speech coding standards, we reduce the complexity of the speech coders while obtaining comparable performance to conventional approaches.

Original languageEnglish
Title of host publication2000 IEEE Workshop on Speech Coding - Proceedings
Subtitle of host publicationMeeting the Challenges of the New Millennium
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages99-101
Number of pages3
ISBN (Electronic)0780364163, 9780780364165
DOIs
Publication statusPublished - 2000 Jan 1
EventIEEE Workshop on Speech Coding - Delavan, United States
Duration: 2000 Sep 172000 Sep 20

Publication series

Name2000 IEEE Workshop on Speech Coding - Proceedings: Meeting the Challenges of the New Millennium

Other

OtherIEEE Workshop on Speech Coding
CountryUnited States
CityDelavan
Period00/9/1700/9/20

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All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Software

Cite this

Kim, H. K., & Kang, H. G. (2000). A pseudo-cepstrum based short-term postfilter. In 2000 IEEE Workshop on Speech Coding - Proceedings: Meeting the Challenges of the New Millennium (pp. 99-101). [878412] (2000 IEEE Workshop on Speech Coding - Proceedings: Meeting the Challenges of the New Millennium). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SCFT.2000.878412