Effect of number of channels and speech coding strategy on speech recognition in mid-scala electrode recipients

2019 ◽  
Vol 145 (3) ◽  
pp. 1796-1797 ◽  
Author(s):  
Katelyn A. Berg ◽  
Jack H. Noble ◽  
Benoit Dawant ◽  
Robert Dwyer ◽  
Robert Labadie ◽  
...  
Keyword(s):  
Speech Recognition ◽  
Speech Coding ◽  
Coding Strategy

Effect of Frequency Boundary Assignment on Speech Recognition with the Nucleus 24 ACE Speech Coding Strategy

2007 ◽  
Vol 18 (08) ◽  
pp. 700-717 ◽  
Author(s):  
Marios S. Fourakis ◽  
John W. Hawks ◽  
Laura K. Holden ◽  
Margaret W. Skinner ◽  
Timothy A. Holden
Keyword(s):  
Speech Recognition ◽  
Speech Perception ◽  
Cochlear Implants ◽  
Speech Coding ◽  
Frequency Assignment ◽  
Speech Stimuli ◽  
Unlimited Number ◽  
Coding Strategy ◽  
Technological Limitations ◽  
Nucleus 24

The choice of frequency boundaries for the analysis channels of cochlear implants has been shown to impact the speech perception performance of adult recipients (Skinner et al, 1995; Fourakis et al, 2004). While technological limitations heretofore have limited the clinical feasibility of investigating novel frequency assignments, the SPEAR3 research processor affords the opportunity to investigate an unlimited number of possibilities. Here, four different assignments are evaluated using a variety of speech stimuli. All participants accommodated to assignment changes, and no one assignment was significantly preferred. The results suggest that better performance can be achieved using a strategy whereby (1) there are at least 7-8 electrodes allocated below 1000 Hz, (2) the majority of remaining electrodes are allocated between 1100 - 3000 Hz, and (3) the region above 3 kHz is represented by relatively few electrodes (i.e., 1-3). The results suggest that such frequency assignment flexibility should be made clinically available. La escogencia de límites de frecuencia para los canales de análisis de los implantes cocleares se ha visto que impacta el desempeño en la percepción del lenguaje de adultos implantados (Skinner y col, 1995; Fourakis y col, 2004). Mientras que las limitaciones tecnológicas hasta este momento han restringido la factibilidad clínica de investigar nuevas asignaciones de frecuencia, el procesador experimental SPEAR3 ofrece la oportunidad de investigar un número ilimitado de posibilidades. Aquí, se evalúan cuatro asignaciones diferentes utilizando una variedad de estímulos de lenguaje. Todos los participantes se acomodaron a los cambios de asignación y ninguna asignación tuvo una preferencia significativa. Los resultados sugieren que puede obtenerse un desempeño mejor utilizando una estrategia donde (1) existan al menos 7-8 electrodos colocados por debajo de 1000 Hz, (2) la mayoría de los electrodos remanentes sean colocados entre 1100 – 3000 Hz, y (3) la región por encima de 3 kHz esté representada por relativamente pocos electrodos (p.e., 1-3). Los resultados sugieren que tal flexibilidad en la asignación de frecuencias debería estar clínicamente disponible.

scholarly journals Comparison of speech recognition results for a one‐ and two‐formant speech coding strategy for a multichannel cochlear implant

1988 ◽  
Vol 84 (S1) ◽  
pp. S40-S40
Author(s):  
Judith A. Brimacombe ◽  
Anne L. Beiter ◽  
Mary J. Barker ◽  
Karen A. Mikami ◽  
Steven J. Staller
Keyword(s):  
Speech Recognition ◽  
Cochlear Implant ◽  
Speech Coding ◽  
Coding Strategy

Comparison of Speech Recognition Ability with Different Speech Processing Strategies by Korean Cochlear Implantees

1992 ◽  
Vol 101 (8) ◽  
pp. 659-664 ◽  
Author(s):  
Yoon Joo Shim ◽  
Gyu Jong Cho ◽  
Hee-Nam Kim ◽  
Young Myoung Kim ◽  
Sung Kyun Moon
Keyword(s):  
Speech Recognition ◽  
Speech Processing ◽  
Speech Coding ◽  
Discrimination Ability ◽  
Processing Strategies ◽  
Methods Of Evaluation ◽  
Significant Difference ◽  
Recognition Ability ◽  
Coding Strategies ◽  
Coding Strategy

Many variables affect the audiologic performance of cochlear implantees. With current methods of evaluation, it is difficult to directly compare auditory function with different speech coding strategies. We compared the audiologic performance directly with F0F1F2 and multipeak speech coding strategies in the same implanted ear of eight Korean cochlear implantees. We tested word and phoneme recognition abilities using Korean word lists for speech audiometry and two-syllable nonsense words, respectively. With the multipeak coding strategy, a significant difference in discrimination ability was found in the initial fricative consonant phonemes (/s/, /ss/, /h/). Our results suggest that the improvement of speech recognition ability with the multipeak coding strategy comes primarily from the better understanding of the initial fricative consonants.

Evaluation of the Harmony Soundprocessor in Combination With the Speech Coding Strategy HiRes 120

2008 ◽  
Vol 29 (2) ◽  
pp. 199-202 ◽  
Author(s):  
Martina Brendel ◽  
Andreas Buechner ◽  
Beate Krueger ◽  
Carolin Frohne-Buechner ◽  
Thomas Lenarz
Keyword(s):  
Speech Coding ◽  
Coding Strategy

Envelope Versus Fine Structure Speech Coding Strategy

2011 ◽  
Vol 32 (7) ◽  
pp. 1094-1101 ◽  
Author(s):  
Dominik Riss ◽  
Jafar-Sasan Hamzavi ◽  
Andreas Selberherr ◽  
Alexandra Kaider ◽  
Michaela Blineder ◽  
...  
Keyword(s):  
Fine Structure ◽  
Speech Coding ◽  
Coding Strategy

Effects of Stimulation Rate with the Nucleus 24 ACE Speech Coding Strategy

2002 ◽  
Vol 23 (5) ◽  
pp. 463-476 ◽  
Author(s):  
Laura K. Holden ◽  
Margaret W. Skinner ◽  
Timothy A. Holden ◽  
Marilyn E. Demorest
Keyword(s):  
Speech Coding ◽  
Stimulation Rate ◽  
Coding Strategy ◽  
Nucleus 24

scholarly journals Performances Study of a New Speech Coding Strategy with Reduced Channels for Cochlear Implants

2009 ◽  
Vol 2 (1) ◽  
pp. 29-39
Author(s):  
Bouafif Lamia ◽  
Ouni Kais ◽  
Ellouze Noureddine
Keyword(s):  
Cochlear Implants ◽  
Speech Coding ◽  
Coding Strategy
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