Representation of fine structure of speech signals using time-frequency zeros

• Okada Akimasa

  The university of Tokyo

• Ono Nobutaka

  The university of Tokyo

• Ando Shigeru

  The university of Tokyo

Abstract

In this paper, we propose a novel time-frequency analysis method for speech, which consists of 1) subband decomposition by the holomorphic filterbank proposed by us, and 2) detection of time-frequency zeros. By theoretical analysis and experiments, we show that 1) voiced speech generates a stable two-dimensional (2-D) maps of zeros which are different vowels by vowels, 2) it represents pitch structure, formant structure, and glottal excitation instance, which are important for analyzing voiced speech in frequency and time domain.

Journal

• SICE Annual Conference Program and Abstracts

  SICE Annual Conference Program and Abstracts 2004 (0), 23-23, 2004

  The Society of Instrument and Control Engineers

Details

• CRID: 1390001205587886720
• NII Article ID: 130005441136
• DOI: 10.11499/sicep.2004.0_23_4
• Text Lang: en
• Data Source:
  • JaLC
  • CiNii Articles
• Abstract License Flag: Disallowed