Study on Chinese Speech Intelligibility Under Different Low-Frequency Characteristics of Reverberation Time Using a Hybrid Method

• Autorzy: Huang Wuqiong , Peng Jianxin , Xie Tinghui

Identyfikatory

DOI

10.24425/aoa.2023.145229

• Języki publikacji: EN

Abstrakty

EN

Reverberation time (RT) is an important indicator of room acoustics, however, most studies focus on the mid-high frequency RT, and less on the low-frequency RT. In this paper, a hybrid approach based on geometric and wave methods was proposed to build a more accurate and wide frequency-band room acoustic impulse response. This hybrid method utilized the finite-difference time-domain (FDTD) method modeling at low frequencies and the Odeon simulation at mid-high frequencies, which was investigated in a university classroom. The influence of the low-frequency RT on speech intelligibility was explored. For the low-frequency part, different impedance boundary conditions were employed and the effectiveness of the hybrid method has also been verified. From the results of objective acoustical parameters and subjective listening experiments, the smaller the low-frequency RT was, the higher the Chinese speech intelligibility score was. The syllables, consonants, vowels, and the syllable order also had significant effects on the intelligibility score.

Słowa kluczowe

EN

low frequency; speech intelligibility; classroom; finite-difference time-domain method

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2023
• Tom: Vol. 48, No. 2
• Strony: 151--157
• Opis fizyczny: Bibliogr. 22 poz., rys., tab., wykr.

Twórcy

autor

Huang Wuqiong

• School of Physics and Optoelectronics, South China University of Technology Guangzhou, China
• State Key Laboratory of Subtropical Building Science, South China University of Technology Guangzhou, China

autor

Peng Jianxin

• School of Physics and Optoelectronics, South China University of Technology Guangzhou, China

autor

Xie Tinghui

• School of Architecture and Art, Shijiazhuang Tiedao University Shijiazhuang, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023). (PL).