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The influence of spectral characteristics of early reflections on speech intelligibility.
J Acoust Soc Am. 2011 Aug; 130(2):996-1005.JA

Abstract

The auditory system takes advantage of early reflections (ERs) in a room by integrating them with the direct sound (DS) and thereby increasing the effective speech level. In the present paper the benefit from realistic ERs on speech intelligibility in diffuse speech-shaped noise was investigated for normal-hearing and hearing-impaired listeners. Monaural and binaural speech intelligibility tests were performed in a virtual auditory environment where the spectral characteristics of ERs from a simulated room could be preserved. The useful ER energy was derived from the speech intelligibility results and the efficiency of the ERs was determined as the ratio of the useful ER energy to the total ER energy. Even though ER energy contributed to speech intelligibility, DS energy was always more efficient, leading to better speech intelligibility for both groups of listeners. The efficiency loss for the ERs was mainly ascribed to their altered spectrum compared to the DS and to the filtering by the torso, head, and pinna. No binaural processing other than a binaural summation effect could be observed.

Authors+Show Affiliations

Department of Electrical Engineering, Technical University of Denmark, Lyngby, Denmark. ia@elektro.dtu.dkNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21877812

Citation

Arweiler, Iris, and Jorg M. Buchholz. "The Influence of Spectral Characteristics of Early Reflections On Speech Intelligibility." The Journal of the Acoustical Society of America, vol. 130, no. 2, 2011, pp. 996-1005.
Arweiler I, Buchholz JM. The influence of spectral characteristics of early reflections on speech intelligibility. J Acoust Soc Am. 2011;130(2):996-1005.
Arweiler, I., & Buchholz, J. M. (2011). The influence of spectral characteristics of early reflections on speech intelligibility. The Journal of the Acoustical Society of America, 130(2), 996-1005. https://doi.org/10.1121/1.3609258
Arweiler I, Buchholz JM. The Influence of Spectral Characteristics of Early Reflections On Speech Intelligibility. J Acoust Soc Am. 2011;130(2):996-1005. PubMed PMID: 21877812.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The influence of spectral characteristics of early reflections on speech intelligibility. AU - Arweiler,Iris, AU - Buchholz,Jorg M, PY - 2011/9/1/entrez PY - 2011/9/1/pubmed PY - 2011/12/21/medline SP - 996 EP - 1005 JF - The Journal of the Acoustical Society of America JO - J Acoust Soc Am VL - 130 IS - 2 N2 - The auditory system takes advantage of early reflections (ERs) in a room by integrating them with the direct sound (DS) and thereby increasing the effective speech level. In the present paper the benefit from realistic ERs on speech intelligibility in diffuse speech-shaped noise was investigated for normal-hearing and hearing-impaired listeners. Monaural and binaural speech intelligibility tests were performed in a virtual auditory environment where the spectral characteristics of ERs from a simulated room could be preserved. The useful ER energy was derived from the speech intelligibility results and the efficiency of the ERs was determined as the ratio of the useful ER energy to the total ER energy. Even though ER energy contributed to speech intelligibility, DS energy was always more efficient, leading to better speech intelligibility for both groups of listeners. The efficiency loss for the ERs was mainly ascribed to their altered spectrum compared to the DS and to the filtering by the torso, head, and pinna. No binaural processing other than a binaural summation effect could be observed. SN - 1520-8524 UR - https://www.unboundmedicine.com/medline/citation/21877812/The_influence_of_spectral_characteristics_of_early_reflections_on_speech_intelligibility_ L2 - https://doi.org/10.1121/1.3609258 DB - PRIME DP - Unbound Medicine ER -