Multichannel speech intelligibility and talker recognition using monaural, binaural, and three-dimensional auditory presentation

Drullman, Rob; Bronkhorst, Adelbert W.

doi:10.1121/1.428503

Cited by 123 publications

(76 citation statements)

References 23 publications

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“…When only a few talkers are present in the babble, masking effects may actually be more easily overcome because of clear acoustical distinctions between voices (Brungart, 2001) or because listeners can rely on asynchronies in the dynamic variations of the concurrent streams that cause transient gaps in the babble during which they can listen to target signals (Hoen et al, 2007). With an increasing number of talkers however, the dynamic modulations from the additive sources are progressively averaged, thus decreasing the temporal gaps free for listening to target words (Bronkhorst and Plomp, 1992;Drullman and Bronkhorst, 2000). This phenomenon has been considered as informational masking occurring at the acoustic-phonetic level (Hoen et al, 2007).…”

Section: Discussionmentioning

confidence: 99%

Real-time lexical competitions during speech-in-speech comprehension

Boulenger

Hoen

Ferragne

et al. 2010

Speech Communication

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This study aimed at characterizing the cognitive processes that come into play during speech-inspeech comprehension by examining lexical competitions between target speech and concurrent multi-talker babble. We investigated the effects of number of simultaneous talkers (2, 4, 6 or 8) and of the token frequency of the words that compose the babble (high or low) on lexical decision to target words. Results revealed a decrease in performance as measured by reaction times to targets with increasing number of concurrent talkers. Crucially, the frequency of words in the babble significantly affected performance: high-frequency babble interfered more strongly (by lengthening reaction times) with word recognition than low-frequency babble. This informational masking was particularly salient when only two talkers were present in the babble due to the availability of identifiable lexical items from the background. Our findings suggest that speech comprehension in multi-talker babble can trigger competitions at the lexical level between target and background. They further highlight the importance of investigating speechin-speech comprehension situations as they may provide crucial information on interactive and competitive mechanisms that occur in real-time during word recognition.

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Section: Discussionmentioning

confidence: 99%

Real-time lexical competitions during speech-in-speech comprehension

Boulenger

Hoen

Ferragne

et al. 2010

Speech Communication

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“…Spatially separating a target from distractors can help improve the ability to detect and identify the target sound (leading to improved intelligibility, in the case of a speech target; Hirsh 1950;Carhart et al 1969;Drullman and Bronkhorst 2000;Brungart and Simpson 2002;Marrone et al 2008). When energetic masking determines performance, the benefit of spatial separation depends on the spectral content of the competing sounds and comes about from both improvements in the target-to-masker ratio reaching the "better ear" at frequencies above about 2 kHz and binaural processing benefits, strongest for frequencies below about 1000 Hz (Zurek 1993).…”

Section: Introductionmentioning

confidence: 99%

How Visual Cues for when to Listen Aid Selective Auditory Attention

Varghese

Ozmeral

Best

et al. 2012

JARO

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Visual cues are known to aid auditory processing when they provide direct information about signal content, as in lip reading. However, some studies hint that visual cues also aid auditory perception by guiding attention to the target in a mixture of similar sounds. The current study directly tests this idea for complex, nonspeech auditory signals, using a visual cue providing only timing information about the target. Listeners were asked to identify a target zebra finch bird song played at a random time within a longer, competing masker. Two different maskers were used: noise and a chorus of competing bird songs. On half of all trials, a visual cue indicated the timing of the target within the masker. For the noise masker, the visual cue did not affect performance when target and masker were from the same location, but improved performance when target and masker were in different locations. In contrast, for the chorus masker, visual cues improved performance only when target and masker were perceived as coming from the same direction. These results suggest that simple visual cues for when to listen improve target identification by enhancing sounds near the threshold of audibility when the target is energetically masked and by enhancing segregation when it is difficult to direct selective attention to the target. Visual cues help little when target and masker already differ in attributes that enable listeners to engage selective auditory attention effectively, including differences in spectrotemporal structure and in perceived location.

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“…Considerable experimental evidence shows an advantage in speech perception for binaural over monaural listening (Drennan, Gatehouse, & Lever, 2003;Drullman & Bronkhorst, 2000;Gallun, Mason, & Kidd, 2005). The binaural advantage is thought to be attributable to several separate effects (Culling & Summerfield, 1995;Edmonds & Culling, 2006;Freyman, Balakrishnan, & Helfer, 2001;.…”

Section: How Binaural Measurement Can Improve Objective Testsmentioning

confidence: 99%

A Model for Predicting Intelligibility of Binaurally Perceived Speech

Scharine¹,

Henry²,

Rao³

et al. 2007

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Multichannel speech intelligibility and talker recognition using monaural, binaural, and three-dimensional auditory presentation

Cited by 123 publications

References 23 publications

Real-time lexical competitions during speech-in-speech comprehension

Real-time lexical competitions during speech-in-speech comprehension

How Visual Cues for when to Listen Aid Selective Auditory Attention

A Model for Predicting Intelligibility of Binaurally Perceived Speech

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