Effect of linear frequency transposition on speech recognition and production of school-age children.

@article{Auriemmo2009EffectOL,
  title={Effect of linear frequency transposition on speech recognition and production of school-age children.},
  author={Jane Auriemmo and Francis K. Kuk and Chi-chuen Lau and Susan Marshall and Natalie Thiele and Margaret Pikora and D Quick and Patricia Stenger},
  journal={Journal of the American Academy of Audiology},
  year={2009},
  volume={20 5},
  pages={
          289-305
        }
}
PURPOSE To investigate the clinical efficacy of linear frequency transposition (LFT) for a group of school-age children. RESEARCH DESIGN A nonrandomized, within-subject design was implemented to investigate vowel and consonant recognition and fricative articulation of school-age children utilizing this feature. STUDY SAMPLE Ten children, aged 6 years and 3 months, to 13 years and 6 months from a special education school district participated in this study. Individual hearing thresholds… 
The Effect of Frequency Transposition on Speech Perception in Adolescents and Young Adults with Profound Hearing Loss
TLDR
Notable improvements were observed in both sound-field-aided thresholds and speech perception after 12 weeks of use, suggesting that frequency lowering can be efficacious in improving speech perception in severely to profoundly hearing-impaired individuals who are past the critical age for language acquisition.
Evaluation of nonlinear frequency compression for school-age children with moderate to moderately severe hearing loss.
TLDR
Aided thresholds for high-frequency stimuli were significantly better when NLFC was enabled, and use of NLFC resulted in significantly better speech recognition in quiet for the UWO Plural Test and for the phonemes /d/ and /s/ on the Phonak Logatome test.
Efficacy of linear frequency transposition on consonant identification in quiet and in noise.
TLDR
Examination of the effect of linear frequency transposition on consonant identification in quiet and in noise at three intervals found a decrease in the number of confusions and an increase in thenumber of correct identification over time, and linear frequencyTransposition improved fricative identification overTime.
Long-term effects of non-linear frequency compression for children with moderate hearing loss
TLDR
It is suggested that NLFC improves audibility for and recognition of high-frequency speech sounds for children with moderate to moderately-severe hearing loss, and improvements found with NLFC increased with a longer period of acclimatization to the technology.
Evaluation of a Frequency-Lowering Algorithm for Adults With High-Frequency Hearing Loss
TLDR
Fcomp improved the audibility of high-frequency sounds for 6 out of 10 participants and improved word-final /s, z/ detection, and no benefit was found for the other measures.
Effects of Frequency Compression and Frequency Transposition on Fricative and Affricate Perception in Listeners With Normal Hearing and Mild to Moderate Hearing Loss
TLDR
Improvements in the identification of stimuli chosen to be sensitive to the effects of frequency lowering have been demonstrated using two forms of frequency compression in individuals with mild to moderate high-frequency sensorineural hearing loss, however, negative results caution against using FT.
Influence of aided audibility on speech recognition performance with frequency composition for children and adults
TLDR
It is suggested that children who have a low-aided SII may benefit from frequency composition, and further data is needed to generalise these findings to a greater number of participants and variety of stimuli.
Perceptual acclimatization post nonlinear frequency compression hearing aid fitting in older children.
TLDR
It is suggested that some but not all children will experience improved speech recognition ability after a period of frequency compression hearing aid use, and frequency compression provided varying outcomes, both in benefit and acclimatization, across listeners.
The effects of frequency lowering on speech perception in noise with adult hearing-aid users
TLDR
Under similar fitting and testing conditions of this study, FL techniques may not provide speech understanding benefit in certain background noise situations.
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 49 REFERENCES
Aided Perception of /s/ and /z/ by Hearing-Impaired Children
TLDR
In general, mid-frequency audibility appeared to be most important for perception of the fricative noise for the male talker while a somewhat wider frequency range was important for the female talker.
Effect of Stimulus Bandwidth on Auditory Skills in Normal-Hearing and Hearing-Impaired Children
TLDR
The current results are consistent with previous studies that have shown that a restricted stimulus bandwidth can negatively affect the perception of /s/ and /z/ spoken by female talker, which serve multiple linguistic functions in the English language.
A study of the application of a frequency transposition hearing system in children
TLDR
It is suggested that there is a small subgroup of hearing-impaired children who benefit from frequency transposition hearing systems, and future suggested fitting criteria and outcome measures are listed.
Use of linear frequency transposition in simulated hearing loss.
  • P. Korhonen, F. Kuk
  • Physics, Medicine
    Journal of the American Academy of Audiology
  • 2008
TLDR
It is demonstrated that frequency transposition produces acoustic cues that normal hearing listeners with a simulated hearing loss at and above 1600 Hz may be trained to utilize.
Speech Perception with Steeply Sloping Hearing Loss: Effects of Frequency Transposition
TLDR
It is concluded that such a frequency-transposition scheme, if implemented in a wearable hearing aid, would be unlikely to benefit people with a sloping hearing impairment of this type.
Bandwidth effects on children's perception of the inflectional morpheme /s/: acoustical measurements, auditory detection, and clarity rating.
TLDR
The higher detection thresholds and larger clarity rating variances for the youngest participants support the use of extended high-frequency bandwidths for young children with impaired hearing.
Comparison of performance with frequency transposition hearing aids and conventional hearing aids.
TLDR
Results show the efficacy of frequency transposition in improving speech understanding and quality of life in some individuals with severe-to-profound hearing loss and suggest the need for evaluating the benefit offrequency transposition on an individual basis.
Improvements in speech perception with use of the AVR TranSonic frequency-transposing hearing aid.
TLDR
Five adults with sensorineural hearing impairment participated in a trial comparing the performance of the AVR TranSonic frequency-transposing hearing aid with that of their own conventional aids, and analysis of the consonant confusions suggested that the improvement resulted mostly from the TraSonic's low-frequency electro-acoustic characteristics.
Oral communication skills of children who are hard of hearing.
TLDR
Children with mild to severe hearing losses were administered a battery of speech and language tasks, indicating a consistent pattern of oral communication behavior that reflects the reduction of acoustic input that they experience.
Preliminary results with the AVR ImpaCt frequency-transposing hearing aid.
TLDR
Tests with three hearing-impaired adults suggest that the transposition function of the ImpaCt was not effective at providing these subjects with increased high-frequency speech information, at least for the programmable parameters applied in the experiments.
...
1
2
3
4
5
...