In this study we explore how acoustic and lip articulatory characteristics of bilabial consonants and three extreme French vowels vary in Lombard speech. In the light of several theories of segments perception we have shown that formant modifications should decrease the audio intelligibility of vowels in noise. On the contrary, modification in lip articulation should improve the visual intellig...

Early study showed that temporally reversed speech may still be very intelligible. The present work further assessed the role of acoustic cues accounting for the intelligibility of temporally reversed speech. Mandarin sentences were edited to be temporally reversed. Experiment 1 preserved the original consonant segments, and experiment 2 only preserved the temporally reversed fine-structure wav...

Existing objective speech-intelligibility measures are suitable for several types of degradation, however, it turns out that they are less appropriate in cases where noisy speech is processed by a time-frequency weighting. To this end, an extensive evaluation is presented of objective measure for intelligibility prediction of noisy speech processed with a technique called ideal time frequency (...

In mobile devices, perceived speech signal degrades significantly in the presence of background noise as it reaches directly at the listener's ears. There is a need to improve the intelligibility and quality of the received speech signal in noisy environments by incorporating speech enhancement algorithms. This paper focuses on speech enhancement method including auditory masking propertie...

In a previous study IT. Baer and B.C. J. Moore, J. Acoust. Soc. Am. 94, 1229-1241 (1993)], a spectral smearing technique was used to simulate some of the effects of impaired frequency selectivity so as to assess its influence on speech intelligibility. Results showed that spectral smearing to simulate broadening of the auditory filters by a factor of 3 or 6 had little effect on the intelligibil...

In mobile devices, perceived speech signal degrades significantly in the presence of background noise as it reaches directly at the listener's ears. There is a need to improve the intelligibility and quality of the received speech signal in noisy environments by incorporating speech enhancement algorithms. This paper focuses on speech enhancement method including auditory masking propertie...

The relationship between speech intelligibility of eleven prelingually deaf children and their residual hearing capabilities was investigated. Audio recordings were made of the deaf children, ranging from eleven to seventeen years of age, when they read so-called Helen-questions. Tapes containing the Helen-questions were played to inexperienced and experienced normally hearing listeners to meas...

PURPOSE This article describes the effects of a new intensive dysarthria treatment program (Be Clear) on speech intelligibility in adults with dysarthria secondary to stroke and traumatic brain injury. METHOD A small group-repeated measures research design was used to examine the effects of treatment on the speech of 8 participants with nonprogressive dysarthria. Treatment consisted of a 1-hr...

Down Syndrome (DS) is a genetic disease involving a number of anatomical, physiological and cognitive impairments. More particularly it affects speech production abilities. This results in reduced intelligibility which has however only been evaluated auditorily. Yet, many studies have demonstrated that adding vision to audition helps perception of speech produced by people without impairments e...

The current study investigated how amplitude and phase information differentially contribute to speech intelligibility. Listeners performed a word-identification task after hearing spectrally degraded sentences. Each stimulus was degraded by first dividing it into segments, then the amplitude and phase components of each segment were decorrelated independently to various degrees relative to tho...