Study of speaker localization with binaural microphone array incorporating auditory filters and lateral angle estimation

Yanir Maymon*, Israel Nelken, Boaz Rafaely

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Speaker localization for binaural microphone arrays has been widely studied for applications such as speech communication, video conferencing, and robot audition. Many methods developed for this task, including the direct path dominance (DPD) test, share common stages in their processing, which include transformation using the short-time Fourier transform (STFT), and a direction of arrival (DOA) search that is based on the head related transfer function (HRTF) set. In this paper, alternatives to these processing stages, motivated by human hearing, are proposed. These include incorporating an auditory filter bank to replace the STFT, and a new DOA search based on transformed HRTF as steering vectors. A simulation study and an experimental study are conducted to validate the proposed alternatives, and both are applied to two binaural DOA estimation methods; the results show that the proposed method compares favorably with current methods.

Original languageAmerican English
Article number109632
JournalApplied Acoustics
Volume213
DOIs
StatePublished - Oct 2023

Bibliographical note

Publisher Copyright:
© 2023 Elsevier Ltd

Keywords

  • Binaural microphone arrays
  • Reverberation
  • Room acoustics
  • Speaker localization

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