An estimation method of interaural time differences from measured head-related impulse responses

Masashi Toyoda, Kanji Watanabe, Yukio Iwaya, Yôiti Suzuki

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

A new estimation method is proposed to improve the accuracy of the interaural time difference (ITD). Head-related impulse responses (HRIR) in adjacent directions are applied to calculate the cross correlation function in the method. The proposed method has two advantages over the conventional methods. A reliable correlation coefficient can be obtained as the correlation is always calculated using HRIRs in adjacent directions that are expected to have similar waveforms even when the source is in a shadowed direction. A fractional difference between initial delays can be expressed by up-sampling HRIRs. The ITDs calculated by the proposed method fit well in the plots in the frequency ranges from 2 to 15 kHz for the azimuth of 30° and from 6 to 12 kHz for the azimuth of 60°.

Original languageEnglish
Pages (from-to)239-241
Number of pages3
JournalAcoustical Science and Technology
Volume27
Issue number4
DOIs
Publication statusPublished - 2006

Keywords

  • Cross correlation function
  • HRIR
  • HRTF
  • ITD

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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