A dissociation between speech understanding and perceived reverberation

Ellis, Gregory M.; Zahorik, Pavel

doi:10.1016/j.heares.2019.04.015

Cited by 11 publications

(7 citation statements)

References 24 publications

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“…That is, individuals that had poorer recall of the sentences, and arguably more effort understanding the sentences due to reverberation, did not necessarily rate sentences as more reverberant. This supports recent arguments of the dissociation between intelligibility and perceived reverberation (Ellis and Zahorik, 2019), now on an individual level.…”

Section: Discussionsupporting

confidence: 89%

“…Among a number of factors, the former depends on the surfaces and their sound reflection characteristics in the room, and the latter on the distance between the talker and the listener in the same room. Speech intelligibility declines as a function of increasing RT (e.g., Gelfand and Hochberg, 1976;Moncur and Dirks, 1967;Spitzer et al, 2015;Zahorik and Brandewie, 2016) and decreasing DRR (e.g., Ellis and Zahorik, 2019). As expected, the amount of reverberation as quantified by these acoustic parameters correlates with intelligibility degradation.…”

Section: Introductionsupporting

confidence: 63%

“…As expected, the amount of reverberation as quantified by these acoustic parameters correlates with intelligibility degradation. However, these acoustic parameters may affect intelligibility degradation and perceived reverberation differently, as recently noted for DRR (Ellis and Zahorik, 2019).…”

Section: Introductionmentioning

confidence: 72%

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The effect of simulated room acoustic parameters on the intelligibility and perceived reverberation of monosyllabic words and sentences

Fogerty

Alghamdi

Chan

2020

The Journal of the Acoustical Society of America

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Individual acoustic parameters of reverberation have the potential to affect both the intelligibility of speech and the degree of perceived reverberation. The current experiments used monaural acoustic simulations to investigate the effect of reverberation time (RT) and direct-to-reverberant ratio (DRR) on word and sentence intelligibility at different levels of analysis (phonemes, words, and sentences). Perceived reverberation and recall of sentences were also assessed. Intelligibility and perceived reverberation decreased with increasing RT and decreasing DRR (particularly between 0 and À10 dB). Results indicate consistent effects of both RT and DRR on the intelligibility and perceived reverberation of words and sentences. V

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Section: Discussionsupporting

confidence: 89%

Section: Introductionsupporting

confidence: 63%

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The effect of simulated room acoustic parameters on the intelligibility and perceived reverberation of monosyllabic words and sentences

Fogerty

Alghamdi

Chan

2020

The Journal of the Acoustical Society of America

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“…Althought synthetic BRIRs generated from simple geometries lead to reduced perceptual plausibility, tools like SofaMyRoom have been easily integrated in the stimulus generation pipeline in order to address several research challenges i.e. : (i) subjective experiments on speech understanding and perceived reverberation [29], (ii) supporting hearing aids simulations [30] or (iii) testing novel on-board algorithms for cochlear implants [31]. It is worthwhile to notice that adopting our publicly available tool and by making simulation parameters freely accessible will grant reproducible research by allowing the re-synthesis of the stimuli.…”

Section: Impactmentioning

confidence: 99%

SofaMyRoom: a fast and multiplatform "shoebox" room simulator for binaural room impulse response dataset generation

Barumerli,

Bianchi,

Geronazzo

et al. 2021

Preprint

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This paper introduces a shoebox room simulator able to systematically generate synthetic datasets of binaural room impulse responses (BRIRs) given an arbitrary set of head-related transfer functions (HRTFs). The evaluation of machine hearing algorithms frequently requires BRIR datasets in order to simulate the acoustics of any environment. However, currently available solutions typically consider only HRTFs measured on dummy heads, which poorly characterize the high variability in spatial sound perception. Our solution allows to integrate a room impulse response (RIR) simulator with different HRTF sets represented in Spatially Oriented Format for Acoustics (SOFA). The source code and the compiled binaries for different operating systems allow to both advanced and non-expert users to benefit from our toolbox.

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“…Advances in binaural technology allow a wide variety of spatial configurations of sound source and listener to be simulated in virtual environments and provide experimental control over the acoustic characteristics of the simulated rooms. These advances have enabled the use of virtualization techniques to explore a range of issues, including how reverberation affects speech understanding (Ellis & Zahorik, 2019), and how the availability of visual depth information increases the accuracy of auditory estimates of distance within a room (Anderson & Zahorik, 2014). How audition provides spatial information for judgments of the distance of sound sources (Bidart & Lavandier, 2016; Kolarik, Cirstea, & Pardhan, 2013a, 2013b; Zahorik, 2002) and room size (Kolarik, Pardhan, et al., 2013; Kolarik et al., 2020) has also been investigated using virtualization techniques.…”

Section: Introductionmentioning

confidence: 99%

Factors Affecting Auditory Estimates of Virtual Room Size: Effects of Stimulus, Level, and Reverberation

et al. 2021

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When vision is unavailable, auditory level and reverberation cues provide important spatial information regarding the environment, such as the size of a room. We investigated how room-size estimates were affected by stimulus type, level, and reverberation. In Experiment 1, 15 blindfolded participants estimated room size after performing a distance bisection task in virtual rooms that were either anechoic (with level cues only) or reverberant (with level and reverberation cues) with a relatively short reverberation time of T60 = 400 milliseconds. Speech, noise, or clicks were presented at distances between 1.9 and 7.1 m. The reverberant room was judged to be significantly larger than the anechoic room ( p < .05) for all stimuli. In Experiment 2, only the reverberant room was used and the overall level of all sounds was equalized, so only reverberation cues were available. Ten blindfolded participants took part. Room-size estimates were significantly larger for speech than for clicks or noise. The results show that when level and reverberation cues are present, reverberation increases judged room size. Even relatively weak reverberation cues provide room-size information, which could potentially be used by blind or visually impaired individuals encountering novel rooms.

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A dissociation between speech understanding and perceived reverberation

Cited by 11 publications

References 24 publications

The effect of simulated room acoustic parameters on the intelligibility and perceived reverberation of monosyllabic words and sentences

The effect of simulated room acoustic parameters on the intelligibility and perceived reverberation of monosyllabic words and sentences

SofaMyRoom: a fast and multiplatform "shoebox" room simulator for binaural room impulse response dataset generation

Factors Affecting Auditory Estimates of Virtual Room Size: Effects of Stimulus, Level, and Reverberation

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