Navegando por Palavras-chave "Hearing Aid"

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    Aclimatização: estudo do reconhecimento de fala em usuários de próteses auditivas
    (Pró-Fono Produtos Especializados para Fonoaudiologia Ltda., 2006-12-01) Prates, Letícia Pimenta Costa Spyer [UNIFESP]; Iorio, Maria Cecilia Martinelli [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); Universidade Federal de Minas Gerais Hospital das Clínicas
    BACKGROUND: acclimatization is the period that succeeds the fitting of hearing aids, when a progressive improvement of the hearing and speech recognition abilities is observed due to the new speech cues that are available to the hearing aid user. AIM: to verify acclimatization after the fitting of hearing aids through objective (speech tests) and subjective (Questionnaire) evaluations. METHOD: 16 hearing impaired individuals were evaluated on the first day of hearing aid fitting and were monthly reassessed for three months. In all three months the following speech tests were used: PISR - percentage index of speech recognition through monosyllabic words and SRT - speech recognition threshold through sentences, determining the speech/noise ratio (S/N). The International Outcome Inventory of Hearing Aid (IOI-HA) was also applied in the first and third months after the hearing aids were fitted. RESULTS: the comparison between the first day, first, second and third months after the hearing aids were fitted revealed a statistically significant improvement (p<0.001) between the results, not only for the PISR but also for the S/N ratio. No statistically significant difference was found for the results obtained through the questionnaire applied in the first and third months. CONCLUSION: the objective evaluation, using speech recognition tests, presents better results in the months following the hearing aids fitting indicating a progressive improvement in the speech abilities from the first month onwards. The subjective evaluation does not reveal an improvement when comparing the first and third moths after the hearing aids were fitted.
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    Compressão de freqüências e suas implicações no reconhecimento de fala
    (Pró-Fono Produtos Especializados para Fonoaudiologia Ltda., 2009-06-01) Prates, Letícia Pimenta Costa Spyer [UNIFESP]; Silva, Francisco José Fraga da; Iorio, Maria Cecilia Martinelli [UNIFESP]; Universidade Federal Minas Gerais do Hospital das Clínicas; Universidade Federal do ABC; Universidade Federal de São Paulo (UNIFESP)
    BACKGROUND: frequency compression. AIM: to evaluate the index of speech recognition (IPRF) using frequency compression in three different ratios. Methods: monosyllabic words were recorded using an algorithm of frequency compression in three ratios: 1:1, 2:1, 3:1, generating three lists of words. Eighteen listeners accomplished the IPRF using the modified words. They were subdivided in two groups, considering familiarity with the speech material: group of audiologists (F) and group of patients (P). RESULTS: a statistically significant decrease in accuray was observed when using frequency compression. Group F presented a better performance than Group P in all of the applied ratio frequency compression ratios. CONCLUSION: Frequency compression hinders speech recognition; as the compression ratio increases, so does the level of difficulty. Familiarity with the words facilitates recognition in any hearing condition.