Criteria for evaluating the performance of linear frequency transposition in children

Auriemmo, Jane; Kuk, Francis; Stenger, Patricia

doi:10.1097/01.hj.0000315831.15143.9f

Cited by 8 publications

(2 citation statements)

References 1 publication

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“…Field studies indicated that 33% of subjects (N = 16), with sloping high-frequency hearing loss preferred listening to conversational speech with the transposer enabled than without ( Kuk et al, 2006 ). Case studies indicated speech recognition improvement for individuals with high-frequency hearing loss wearing the Inteo, in comparison to participants' previously used hearing aids ( Auriemmo et al, 2008 ).…”

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confidence: 99%

Evaluation of nonlinear frequency compression: Clinical outcomes

Glista

Scollie

Bagatto

et al. 2009

International Journal of Audiology

149

255

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This study evaluated prototype multichannel nonlinear frequency compression (NFC) signal processing on listeners with high-frequency hearing loss. This signal processor applies NFC above a cut-off frequency. The participants were hearing-impaired adults (13) and children (11) with sloping, high-frequency hearing loss. Multiple outcome measures were repeated using a modified withdrawal design. These included speech sound detection, speech recognition, and self-reported preference measures. Group level results provide evidence of significant improvement of consonant and plural recognition when NFC was enabled. Vowel recognition did not change significantly. Analysis of individual results allowed for exploration of individual factors contributing to benefit received from NFC processing. Findings suggest that NFC processing can improve high frequency speech detection and speech recognition ability for adult and child listeners. Variability in individual outcomes related to factors such as degree and configuration of hearing loss, age of participant, and type of outcome measure.

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confidence: 99%

Evaluation of nonlinear frequency compression: Clinical outcomes

Glista

Scollie

Bagatto

et al. 2009

International Journal of Audiology

149

255

View full text Add to dashboard Cite

show abstract

“…In practice, the linear frequency transposition technique has been found to produce successful outcomes for children with precipitously sloping high-frequency hearing loss (Auriemmo et al, 2008(Auriemmo et al, , 2009Booysen et al, 2008;Verschoor et al, 2008;Smith et al, 2009). For example, Auriemmo et al (2009) reported significant improvements in the consonant and vowel recognition and fricative articulation of 10 school-aged children with precipitously sloping hearing losses after 6 weeks of use of the Audibility Extender.…”

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confidence: 99%

The Effect of Frequency Transposition on Speech Perception in Adolescents and Young Adults with Profound Hearing Loss

Gou¹,

Smith²,

Valero

et al. 2011

Deafness & Education International

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This paper reports on a clinical trial evaluating outcomes of a frequency-lowering technique for adolescents and young adults with severe to profound hearing impairment. Outcomes were defined by changes in aided thresholds, speech perception, and acceptance. The participants comprised seven young people aged between 13 and 25 years. They were divided into two groups based on their audiometric configuration. The first group consisted of four young people with pure tone thresholds of 100 dB at 1 kHz. The second group had more profound hearing loss, with pure tone thresholds of >100 dB at 1 kHz. All participants attended the Fundació Widex Audiologia in Barcelona, a charitable foundation offering intervention and habilitation programmes for hearing-impaired children of all ages. The participants were oral communicators integrated into mainstream high schools and universities. All were experienced hearing aid users with excellent spoken language and no other disability. The hearing aids were fitted using standardized procedures and were worn with the frequency transposition algorithm in the first programme for consistent everyday use. Phoneme and word recognition were assessed after 4, 8, and 12 weeks of use and compared with results for their own superpower hearing aids. Subjective comments from both the participants and their parents were recorded throughout the study. 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.

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An evaluation of frequency transposition for hearing-impaired school-age children

Smith

Dann

Brown

2009

Deafness Educ. Int.

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A key objective when fi tting hearing aids to children is to maximize the audibility of high frequency speech cues which are critical in the understanding of spoken English. Recent advances in digital signal processing have enabled the development of hearing aids which offer linear frequency transposition as a new way of accessing these important speech sounds. This study examined the changes in aided performance observed in children with hearing impairment who trialed the alternative hearing aid technology. The rationale behind the research was to evaluate the benefi ts of this new technology, as applied in the commercially available Widex Inteo hearing aid, for a group of children with sloping high frequency sensori-neural hearing loss (n = 6). The participants were aged between 9 and 14 years and all attended mainstream schools. Outcome measures were comprised of tests of speech perception and speech production and questionnaires. Speech perception abilities were measured using CNC word and phoneme tests, with and without frequency transposition in both the audiovisual and visual alone modalities at 6 weekly intervals for 24 weeks. The Goldman-Fristoe 2 Test of Articulation was the chosen measure of speech production and was administered prior to the new aid fi tting and after 24 weeks of frequency transposition use. Results showed statistically signifi cant improvements for the group as a whole on both these measures. These results were supported by positive reporting on the questionnaires completed by key stakeholders.

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Criteria for evaluating the performance of linear frequency transposition in children

Cited by 8 publications

References 1 publication

Evaluation of nonlinear frequency compression: Clinical outcomes

Evaluation of nonlinear frequency compression: Clinical outcomes

The Effect of Frequency Transposition on Speech Perception in Adolescents and Young Adults with Profound Hearing Loss

An evaluation of frequency transposition for hearing-impaired school-age children

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