期刊论文详细信息
Frontiers in Psychology
Binaural detection thresholds and audio quality of speech and music signals in complex acoustic environments
article
Thomas Biberger1  Stephan D. Ewert1 
[1] Department of Medical Physics and Acoustics and Cluster of Excellence Hearing4all, University of Oldenburg
关键词: Audio quality;    DETECTION THRESHOLDS;    complex acoustic environments;    Auditory modeling;    reverberation;   
DOI  :  10.3389/fpsyg.2022.994047
学科分类:社会科学、人文和艺术(综合)
来源: Frontiers
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【 摘 要 】

Every-day acoustical environments are often complex, typically comprising one attended target sound in the presence of interfering sounds (e.g., disturbing talkers) and reverberation. Here we assessed binaural detection thresholds and (suprathreshold) binaural audio quality ratings of four distortions types: spectral ripples, non-linear saturation, intensity and spatial modifications applied to speech, guitar, and noise targets in such complex acoustic environments (CAEs). The target and (up to) two masker sounds were either co-located as if contained in a common audio stream, or were spatially separated as if originating from different sound sources. The amount of reverberation was systematically varied. Masker and reverberation had a significant effect on the distortion detection thresholds of speech signals. Quality ratings were affected by reverberation, whereas the effect of maskers depended on the distortion. The results suggest that detection thresholds and quality ratings for distorted speech in anechoic are also valid for rooms with mild reverberation, but not for moderate reverberation. Furthermore, for spectral ripples, a significant relationship between the listener’s individual detection thresholds and quality ratings was found. The current results provide baseline data for detection thresholds and audio quality ratings of different distortions of a target sound in CAEs, supporting future development of binaural auditory models.

【 授权许可】

CC BY   

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