Communication Dans Un Congrès Année : 2024

Human talkers VS artificial heads: a comparison of their directivity in dense plane microphone arrays

Résumé

Research in voice directivity generally includes measurements of humans talkers or artificial talking heads, most of the time in separate studies. While humans represent the ground truth of voice directivity, they cannot achieve perfect repetition of voice productions, hence the development of artificial heads, which also allow for a certain degree of standardization of voice signal. This study includes measurements of several human participants, recorded at the center of a high resolution microphone array. Two artificial heads (Head Acoustics HMS-II and a custom head based on the FABIAN geometry developed at TU-Berlin, modified to include three different mouth shapes from realistic 3D scans for vowels /a/, /i/, and /u/) were rotated by steps of 5° before a fixed microphone while sine sweeps were emitted by their internal loudspeaker. The comparison is performed in terms of directivity patterns in the horizontal plane, Directivity Index (DI), and maps sound spectra for all measured azimuth angles.

Luizard_DAGA2024_Presentation.pdf (4.95 Mo) Télécharger le fichier

Dates et versions

hal-05039997 , version 1 (18-04-2025)

Identifiants

  • HAL Id : hal-05039997 , version 1

Citer

Paul Luizard, P Abehsera-Morell, J Daudré, Samuel Bellows, Brian F. G. Katz. Human talkers VS artificial heads: a comparison of their directivity in dense plane microphone arrays. DAGA 2024 - 50th DAGA German Acoustics Conference (DAGA 2025), Mar 2024, Hanovre, Germany. ⟨hal-05039997⟩
112 Consultations
23 Téléchargements

Partager

  • More