The Use of Frequency Lowering Technology in the Treatment of Severe-to-Profound Hearing Loss: A Review of the Literature and Candidacy Considerations for Clinical Application

Glista, Danielle; Scollie, Susan

doi:10.1055/s-0038-1670700

Cited by 7 publications

(1 citation statement)

References 61 publications

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“…In this study, the average CT1s were 3.77 kHz (SR2 default) and 2.17 kHz (SR2 strong), suggesting that a lower cut-off frequency for SR2 could limit recognition performance. The better performance with SR2 default than SR2 strong suggested that there might be an optimal range of frequency compression for individuals with high-frequency hearing loss, as suggested by several previous studies (Johnson and Light, 2015;Scollie et al, 2016;Glista and Scollie, 2018).…”

Section: Discussionmentioning

confidence: 61%

Effects of Adaptive Non-linear Frequency Compression in Hearing Aids on Mandarin Speech and Sound-Quality Perception

Chen

Yang

et al. 2021

Front. Neurosci.

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ObjectiveThis study was aimed at examining the effects of an adaptive non-linear frequency compression algorithm implemented in hearing aids (i.e., SoundRecover2, or SR2) at different parameter settings and auditory acclimatization on speech and sound-quality perception in native Mandarin-speaking adult listeners with sensorineural hearing loss.DesignData consisted of participants’ unaided and aided hearing thresholds, Mandarin consonant and vowel recognition in quiet, and sentence recognition in noise, as well as sound-quality ratings through five sessions in a 12-week period with three SR2 settings (i.e., SR2 off, SR2 default, and SR2 strong).Study SampleTwenty-nine native Mandarin-speaking adults aged 37–76 years old with symmetric sloping moderate-to-profound sensorineural hearing loss were recruited. They were all fitted bilaterally with Phonak Naida V90-SP BTE hearing aids with hard ear-molds.ResultsThe participants demonstrated a significant improvement of aided hearing in detecting high frequency sounds at 8 kHz. For consonant recognition and overall sound-quality rating, the participants performed significantly better with the SR2 default setting than the other two settings. No significant differences were found in vowel and sentence recognition among the three SR2 settings. Test session was a significant factor that contributed to the participants’ performance in all speech and sound-quality perception tests. Specifically, the participants benefited from a longer duration of hearing aid use.ConclusionFindings from this study suggested possible perceptual benefit from the adaptive non-linear frequency compression algorithm for native Mandarin-speaking adults with moderate-to-profound hearing loss. Periods of acclimatization should be taken for better performance in novel technologies in hearing aids.

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Section: Discussionmentioning

confidence: 61%

Effects of Adaptive Non-linear Frequency Compression in Hearing Aids on Mandarin Speech and Sound-Quality Perception

Chen

Yang

et al. 2021

Front. Neurosci.

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Do high‐frequency air‐bone gaps persist after ossiculoplasty?

Polanik

Trakimas

Castillo‐Bustamante

et al. 2020

Laryngoscope Investig Oto

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Objectives Conventional reporting of postoperative hearing outcomes utilizes a pure‐tone averaged air‐bone gap (ABG) that is biased toward low frequencies. Consequently, a high‐frequency ABG after otologic surgery may go unnoticed. In this study, we evaluate changes in low‐ and high‐frequency ABG following ossiculoplasty. Study design Retrospective review. Subjects and setting Consecutive series of patients who underwent ossiculoplasty at a single tertiary care center. Patients with pre‐ and postoperative audiograms were included. Methods Low‐frequency ABG was calculated as the mean ABG at 250, 500, and 1000 Hz. High‐frequency ABG was calculated at 4 kHz. Pre‐ and postoperative ABGs were compared. Results Thirty‐seven consecutive patients were included. Mean age at surgery was 38 years (range, 7‐77 years). Reconstruction materials included: cartilage (N = 4), hydroxyapatite cement (N = 5), and partial or total ossicular replacement prostheses (N = 20 and N = 8, respectively). Postoperatively, the mean low‐frequency ABG improved by 11.9 ± 15.1 dB (P < .0001) and the mean high‐frequency ABG improved by 5.9 ± 16.0 dB (P = .030). Low‐frequency ABG closure was significantly larger than high‐frequency ABG closure (P = .007). Mean postoperative persistent high‐frequency ABG was 22.0 ± 13.8 dB. Conclusion In this series, ossiculoplasty improved ABG across all frequencies, but greater improvements were observed at low frequencies when compared to high frequency. Current reporting standards may not identify persistent high‐frequency ABG. Additional study of the mechanisms of high‐frequency sound conduction in reconstructed middle ears is needed to improve high‐frequency hearing outcomes in ossiculoplasty. Level of evidence Level 4.

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Frequency-lowering processing to improve speech-in-noise intelligibility in patients with age-related hearing loss

Bruno

Freni

Portelli

et al. 2020

Eur Arch Otorhinolaryngol

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The Use of Frequency Lowering Technology in the Treatment of Severe-to-Profound Hearing Loss: A Review of the Literature and Candidacy Considerations for Clinical Application

Cited by 7 publications

References 61 publications

Effects of Adaptive Non-linear Frequency Compression in Hearing Aids on Mandarin Speech and Sound-Quality Perception

Effects of Adaptive Non-linear Frequency Compression in Hearing Aids on Mandarin Speech and Sound-Quality Perception

Do high‐frequency air‐bone gaps persist after ossiculoplasty?

Frequency-lowering processing to improve speech-in-noise intelligibility in patients with age-related hearing loss

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