Detection and suppression of impulsive noise in speech communication systems

1990 ◽  
Vol 137 (1) ◽  
pp. 38 ◽  
Author(s):  
S.V. Vaseghi ◽  
P.J.W. Rayner
Keyword(s):  
Communication Systems ◽  
Impulsive Noise ◽  
Speech Communication

Methods for psychoacoustic evaluation of speech communication systems.

1965 ◽  
Author(s):  
Carl E. Williams ◽  
Michael H. L. Hecker ◽  
Karl D. Kryter
Keyword(s):  
Communication Systems ◽  
Speech Communication

New Turkish intelligibility test for assessing speech communication systems

2005 ◽  
Vol 47 (4) ◽  
pp. 411-423 ◽  
Author(s):  
Hasan Palaz ◽  
Yücel Bicil ◽  
Alper Kanak ◽  
Mehmet Ug̃ur Dog̃an
Keyword(s):  
Communication Systems ◽  
Speech Communication ◽  
Intelligibility Test

A Novel Precoding and Impulsive Noise Mitigation Scheme for MIMO Power Line Communication Systems

2019 ◽  
Vol 13 (1) ◽  
pp. 6-17 ◽  
Author(s):  
Yuwen Qian ◽  
Xiangwei Zhou ◽  
Jun Li ◽  
Feng Shu ◽  
Dushantha Nalin K. Jayakody
Keyword(s):  
Communication Systems ◽  
Impulsive Noise ◽  
Power Line ◽  
Power Line Communication ◽  
Noise Mitigation

scholarly journals Spectrum Sensing Based on Nonparametric Autocorrelation in Wireless Communication Systems under Alpha Stable Noise

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Riqing Chen ◽  
Jun Wang ◽  
Ruiquan Lin ◽  
Xiangning Zhao
Keyword(s):  
Information Systems ◽  
Cognitive Radio ◽  
Wireless Communication ◽  
Spectrum Sensing ◽  
Communication Systems ◽  
Impulsive Noise ◽  
Wireless Communication Systems ◽  
Core Technology ◽  
Key Steps ◽  
Stable Noise

Cognitive radio is regarded as a core technology to support wireless information systems. Spectrum sensing is one of the key steps to achieve cognitive radio technology. To address this problem in the presence of Alpha stable noise in wireless communication systems, we propose a nonparametric autocorrelation method, which takes advantages of the characteristics of signal autocorrelation and noise nonstationarity. The autocorrelated signal is distinguished from Alpha stable noise. As a result, the proposed method is immune from noise uncertainty. Simulation results show the validity of the proposed method under Alpha stable noise, for example, impulsive noise in wireless information systems.

Acoustic Effects of Wearing an M40 Mask with Hood on Speech Perception Anf Roduction

2000 ◽  
Vol 44 (37) ◽  
pp. 674-677
Author(s):  
Sehchang Hah
Keyword(s):  
Speech Perception ◽  
Speech Production ◽  
High Frequency ◽  
Communication Systems ◽  
Speech Communication ◽  
Speech Stimuli ◽  
Frequency Components ◽  
Protective Mask ◽  
Speech Perception And Production

The objective of this experiment was to quantify and localize the effects of wearing the nuclear, biological, and chemical (NBC) M40 protective mask and hood on speech production and perception. A designated speaker's vocalizations of 192 monosyllables while wearing an M40 mask with hood were digitized and used as speech stimuli. Another set of speech stimuli was produced by recording the same individual's vocalizing the same monosyllables without the mask and hood. Participants listened to one set of stimuli during two sessions, one session while wearing an M40 mask with hood and another session without the mask and hood. The results showed that wearing the mask with hood gave most detrimental effects on the sustention dimension acoustically for both speech perception and production. The results also showed that wearing it was detrimental on vocalizing and listening to fricatives and unvoiced-stops. These results may be due to the muffling effect of the voicemitter in speech production and the filtering effects of the voicemitter and the hood material on high frequency components during both speech production and perception. This information will be useful for designing better masks and hoods. This methodology also can be used to evaluate other speech communication systems.

Synthetic Speech Perception in Individuals with Intellectual and Communicative Disabilities

2010 ◽  
pp. 177-187 ◽  
Author(s):  
Rajinder Koul ◽  
James Dembowski
Keyword(s):  
Speech Perception ◽  
Clinical Significance ◽  
Language Impairment ◽  
Communication Systems ◽  
Multiple Disabilities ◽  
Repeated Exposure ◽  
Synthetic Speech ◽  
Speech Communication ◽  
Hearing Impairments ◽  
Language Disabilities

The purpose of this chapter is to review research conducted over the past two decades on the perception of synthetic speech by individuals with intellectual, language, and hearing impairments. Many individuals with little or no functional speech as a result of intellectual, language, physical, or multiple disabilities rely on non-speech communication systems to augment or replace natural speech. These systems include Speech Generating Devices (SGDs) that produce synthetic speech upon activation. Based on this review, the two main conclusions are evident. The first is that persons with intellectual and/or language impairment demonstrate greater difficulties in processing synthetic speech than their typical matched peers. The second conclusion is that repeated exposure to synthetic speech allows individuals with intellectual and/or language disabilities to identify synthetic speech with increased accuracy and speed. This finding is of clinical significance as it indicates that individuals who use SGDs become more proficient at understanding synthetic speech over a period of time.

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