Intelligibility of sentences gated with a single primary rate (0.5-8 Hz, 25-75% duty cycle) or gated with an additional concurrent rate of 24 Hz and a 50% duty cycle was examined in older normal-hearing and hearing-impaired listeners. With a stronger effect of age than hearing loss, intelligibility tended to increase with primary rate and duty cycle, but varied for dual-rate gating. Reduction i...

This critical review examines the effect of delayed auditory feedback (DAF) on speech intelligibility in Parkinson’s disease. Each of the eight articles included in this review examines speech rate and intelligibility with the use of DAF in patients with Parkinson’s disease. Three of the eight articles found positive effects on intelligibility with the use of DAF and five of the eight articles ...

Speaking fast causes several changes in speech prosody. In addition, it can be associated with a decrease intelligibility. this study, prosodic were investigated using common measurements and syllabic prosody index (SPI), novel prominence measure that combines f0, energy duration features. Dynamic long-term functional data analysis (FDA), which the SPI is transformed into form. The possibly dec...

Traditional noise-suppression algorithms have been shown to improve speech quality, but not speech intelligibility. Motivated by prior intelligibility studies of speech synthesized using the ideal binary mask, an algorithm is proposed that decomposes the input signal into time-frequency (T-F) units and makes binary decisions, based on a Bayesian classifier, as to whether each T-F unit is domina...

The current study investigated spectral components of vowels that contribute to Mandarin and English sentence intelligibility. Sentences were processed to preserve various amounts of vowel information. Processing parameters ensured similar proportions of speech preserved between the two languages. In the first experiment, speech segments, primarily containing vocalic cues, were processed to fla...

A speech signal captured by a distant microphone is generally smeared by reverberation, that severely degrades both the speech intelligibility and Automatic Speech Recognition (ASR) performance. Previously, we proposed a novel dereverberation method, named “Harmonicity based dEReverBeration (HERB)”, which estimates the inverse filter of an unknown impulse response by utilizing the inherent spee...

A speech signal captured by a distant microphone is generally smeared by reverberation, that severely degrades both the speech intelligibility and Automatic Speech Recognition (ASR) performance. Previously, we proposed a novel dereverberation method, named “Harmonicity based dEReverBeration (HERB)”, which estimates the inverse filter of an unknown impulse response by utilizing the inherent spee...

In many studies, the influence of intelligibility of the interfering speech is avoided by reversing it in time. Usually, intelligibility with time-reversed interfering speech indeed is higher compared to that with normal interfering speech. However, due to the nature of speech, reversed speech also gives rise to increased forward masking. The latter will result in a decrease in intelligibility....

In many speech communication applications, such as public address systems, speech is degraded by additive noise, leading to reduced speech intelligibility. In this paper a pre-processing algorithm is proposed that is capable of increasing speech intelligibility under an equal-power constraint. The proposed AdaptDRC algorithm comprises two time- and frequency-dependent stages, i.e., an amplifica...

PURPOSE Adults with intellectual disabilities (ID) often show reduced speech intelligibility, which affects their social interaction skills. This study aims to establish the main predictors of this reduced intelligibility in order to ultimately optimise management. METHOD Spontaneous speech and picture naming tasks were recorded in 36 adults with mild or moderate ID. Twenty-five naïve listene...