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Cross-linguistic Influences on Sentence Accent Detection in Background Noise. ...
Scharenborg, Odette; Kakouros, Sofoklis; Post, Brechtje. - : Apollo - University of Cambridge Repository, 2020
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The effect of a coding strategy that removes temporally masked pulses on speech perception by cochlear implant users. ...
Lamping, Wiebke; Goehring, Tobias; Marozeau, Jeremy. - : Apollo - University of Cambridge Repository, 2020
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The effect of a coding strategy that removes temporally masked pulses on speech perception by cochlear implant users.
Lamping, Wiebke; Goehring, Tobias; Marozeau, Jeremy; Carlyon, Bob. - : Elsevier BV, 2020. : Hear Res, 2020
Abstract: Speech recognition in noisy environments remains a challenge for cochlear implant (CI) recipients. Unwanted charge interactions between current pulses, both within and between electrode channels, are likely to impair performance. Here we investigate the effect of reducing the number of current pulses on speech perception. This was achieved by implementing a psychoacoustic temporal-masking model where current pulses in each channel were passed through a temporal integrator to identify and remove pulses that were less likely to be perceived by the recipient. The decision criterion of the temporal integrator was varied to control the percentage of pulses removed in each condition. In experiment 1, speech in quiet was processed with a standard Continuous Interleaved Sampling (CIS) strategy and with 25, 50 and 75% of pulses removed. In experiment 2, performance was measured for speech in noise with the CIS reference and with 50 and 75% of pulses removed. Speech intelligibility in quiet revealed no significant difference between reference and test conditions. For speech in noise, results showed a significant improvement of 2.4 dB when removing 50% of pulses and performance was not significantly different between the reference and when 75% of pulses were removed. Further, by reducing the overall amount of current pulses by 25, 50, and 75% but accounting for the increase in charge necessary to compensate for the decrease in loudness, estimated average power savings of 21.15, 40.95, and 63.45%, respectively, could be possible for this set of listeners. In conclusion, removing temporally masked pulses may improve speech perception in noise and result in substantial power savings.
Keyword: 80 and over; Acoustic Stimulation; Aged; Cochlear Implantation; Cochlear Implants; Electric Stimulation; Hearing; Hearing Loss; Humans; Loudness Perception; Male; Middle Aged; Noise; Perceptual Masking; Persons With Hearing Impairments; Speech Intelligibility; Speech Perception
URL: https://doi.org/10.17863/CAM.51857
https://www.repository.cam.ac.uk/handle/1810/304775
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4
Cross-linguistic Influences on Sentence Accent Detection in Background Noise.
Scharenborg, Odette; Kakouros, Sofoklis; Post, Brechtje. - : SAGE Publications, 2020. : Lang Speech, 2020
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5
Modulation masking release reduction as a function of time-compressed speech
In: Revista CEFAC, Vol 22, Iss 5 (2020) (2020)
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6
Assessment protocols for forward masking in Frequency-Following Response
In: Revista CEFAC, Vol 22, Iss 6 (2020) (2020)
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7
A binaural grouping model for predicting speech intelligibility in multitalker environments
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8
Orthographic and phonological priming effects in the same-different task. ...
Kinoshita, Sachiko; Gayed, Michael; Norris, Dennis. - : Apollo - University of Cambridge Repository, 2018
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9
Evaluation of a multi-channel algorithm for reducing transient sounds. ...
Keshavarzi, Mahmoud; Baer, Thomas; Moore, Brian. - : Apollo - University of Cambridge Repository, 2018
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10
Evaluation of a multi-channel algorithm for reducing transient sounds.
Keshavarzi, Mahmoud; Baer, Thomas; Moore, Brian. - : Informa UK Limited, 2018. : Int J Audiol, 2018
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11
Orthographic and phonological priming effects in the same-different task.
Gayed, Michael; Norris, Dennis; Kinoshita, Sachiko. - : American Psychological Association (APA), 2018. : J Exp Psychol Hum Percept Perform, 2018
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12
Executive function, visual attention and the cocktail party problem in musicians and non-musicians
Yazdanbakhsh, Arash; Patel, Aniruddh D.; Kidd, Gerald. - : Public Library Science, 2016
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13
Perceptual restoration of masked speech in human cortex.
In: Nature communications, vol 7, iss 1 (2016)
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14
Evidence for direct control of eye movements during reading
Dambacher, Michael; Slattery, T. J.; Yang, J.. - : American Psychological Association, 2016
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15
Pulse-spreading harmonic complex as an alternative carrier for vocoder simulations of cochlear implants.
In: J Acoust Soc Am , 139 (2) pp. 986-991. (2016) (2016)
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16
Distinct neural systems recruited when speech production is modulated by different masking sounds.
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17
Effects of a consistent target or masker voice on target speech intelligibility in two- and three-talker mixtures.
In: Brain and Mind Institute Researchers' Publications (2016)
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18
Feedforward and feedback control in apraxia of speech: effects of noise masking on vowel production
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19
Speech perception in older hearing impaired listeners: benefits of perceptual training.
In: PloS one, vol 10, iss 3 (2015)
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20
Speech in noise ability, outer hair cell function, and working memory for trained flute players.
Caldwell, Kelly A.. - : East Carolina University, 2015
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