Effect of Time-Scale Modification of Speech on the Speech Recognition Threshold in Noise for Hearing-Impaired and Language-Impaired Children

Stollman, M.H.P.; Kapteyn, T. S.; Sleeswijk, Barbara Wegener

doi:10.3109/01050399409047484

Cited by 19 publications

(16 citation statements)

References 11 publications

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“…This finding is largely consistent with the literature investigating sentence perception in normal and reading-impaired subjects (cf. (Stollman et al, 1994). In one study, poor-reading children were impaired at discriminating phoneme contrasts embedded in sentences compressed at 50% (Watson et al, 1990).…”

Section: Discussionmentioning

confidence: 99%

Abnormal Cortical Processing of the Syllable Rate of Speech in Poor Readers

Abrams

Nicol²,

Zecker³

et al. 2009

Journal of Neuroscience

149

131

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Children with reading impairments have long been associated with impaired perception for rapidly presented acoustic stimuli and recently have shown deficits for slower features. It is not known whether impairments for low-frequency acoustic features negatively impact processing of speech in reading-impaired individuals. Here we provide neurophysiological evidence that poor readers have impaired representation of the speech envelope, the acoustical cue that provides syllable pattern information in speech. We measured cortical-evoked potentials in response to sentence stimuli and found that good readers indicated consistent right-hemisphere dominance in auditory cortex for all measures of speech envelope representation, including the precision, timing, and magnitude of cortical responses. Poor readers showed abnormal patterns of cerebral asymmetry for all measures of speech envelope representation. Moreover, cortical measures of speech envelope representation predicted up to 41% of the variability in standardized reading scores and 50% in measures of phonological processing across a wide range of abilities. Our findings strongly support a relationship between acoustic-level processing and higher-level language abilities, and are the first to link reading ability with cortical processing of low-frequency acoustic features in the speech signal. Our results also support the hypothesis that asymmetric routing between cerebral hemispheres represents an important mechanism for temporal encoding in the human auditory system, and the need for an expansion of the temporal processing hypothesis for reading disabilities to encompass impairments for a wider range of speech features than previously acknowledged.

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Section: Discussionmentioning

confidence: 99%

Abnormal Cortical Processing of the Syllable Rate of Speech in Poor Readers

Abrams

Nicol²,

Zecker³

et al. 2009

Journal of Neuroscience

149

131

View full text Add to dashboard Cite

show abstract

“…Compared to QS, NAS was characterized by slower speech rates, higher pitch, and more energy in the 1-3 kHz range. It is important to note that, despite the wealth of production and perception studies in clear speech and NAS research, a direct relationship between some of the acoustic-phonetic features examined and intelligibility is still rather tenuous (Ferguson, 2004;Picheny et al 1989;Stollman et al 1994;Uchanski et al 1996). Furthermore, it remains to be seen whether these are the same features that contribute to the observed improvements in recognition memory.…”

Section: Discussionmentioning

confidence: 99%

Recognition memory in noise for speech of varying intelligibility

Gilbert

Chandrasekaran

Smiljanić

2014

The Journal of the Acoustical Society of America

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This study investigated the extent to which noise impacts normal-hearing young adults' speech processing of sentences that vary in intelligibility. Intelligibility and recognition memory in noise were examined for conversational and clear speech sentences recorded in quiet (quiet speech, QS) and in response to the environmental noise (noise-adapted speech, NAS). Results showed that (1) increased intelligibility through conversational-to-clear speech modifications led to improved recognition memory and (2) NAS presented a more naturalistic speech adaptation to noise compared to QS, leading to more accurate word recognition and enhanced sentence recognition memory. These results demonstrate that acoustic-phonetic modifications implemented in listener-oriented speech enhance speech-in-noise processing beyond word recognition. Effortful speech processing in challenging listening environments can thus be improved by speaking style adaptations on the part of the talker. In addition to enhanced intelligibility, a substantial improvement in recognition memory can be achieved through speaker adaptations to the environment and to the listener when in adverse conditions.

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“…In addition, to varying presentation conditions, a few studies used speech cue enhancement manipulations in order to investigate possible connections between specific acoustic cues and intelligibility (Picheny et al. 1989; Stollman et al. 1994; Hazan and Simpson 1998, 2000; Liu and Zeng 2006).…”

Section: Talker‐ Listener‐ and Signal‐dependent Effects In Clear Speechmentioning

confidence: 99%

“…As an alternative to looking at naturally produced clear speech, which involves modifications along various articulatory/acoustic dimensions, all of which can affect intelligibility, several studies used signal‐processing to assess the role of individual acoustic cues on intelligibility (Picheny et al. 1989; Stollman et al. 1994; Uchanski et al.…”

Section: Talker‐ Listener‐ and Signal‐dependent Effects In Clear Speechmentioning

confidence: 99%

Speaking and Hearing Clearly: Talker and Listener Factors in Speaking Style Changes

Smiljanić¹,

Bradlow²

2009

Language and Linguist. Compass

256

207

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This article provides an overview of the research concerning the nature of the distinct, listeneroriented speaking style called 'clear speech' and its effect on intelligibility for various listener populations. We review major findings that identify talker, listener and signal characteristics that contribute to the characteristically high intelligibility of clear speech. Understanding the interplay of these factors sheds light on the interaction between higher level cognitive and lower-level sensory and perceptual factors that affect language processing. Clear speech research is, thus, relevant for both its theoretical insights and practical applications. Throughout the review, we highlight open questions and promising future directions.

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Effect of Time-Scale Modification of Speech on the Speech Recognition Threshold in Noise for Hearing-Impaired and Language-Impaired Children

Cited by 19 publications

References 11 publications

Abnormal Cortical Processing of the Syllable Rate of Speech in Poor Readers

Abnormal Cortical Processing of the Syllable Rate of Speech in Poor Readers

Recognition memory in noise for speech of varying intelligibility

Speaking and Hearing Clearly: Talker and Listener Factors in Speaking Style Changes

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