Reconhecimento de sentenças no ruído, em campo livre, em indivíduos com e sem perda auditiva

Abstract

OBJETIVO: determinar as relações sinal/ruído nas quais são obtidos os limiares de reconhecimento de sentenças no ruído (LRSR), em campo livre, para indivíduos com audição normal e para indivíduos com perda auditiva neurossensorial e comparar os resultados dos dois grupos pesquisados. MÉTODO: participaram do estudo 62 indivíduos adultos com idades entre 18 e 64 anos, sendo 32 normo-ouvintes e 30 com perda de audição neurossensorial de grau leve a moderadamente severo, avaliados em cabina acusticamente tratada. Para a avaliação, as sentenças foram apresentadas em campo livre, na presença de um ruído competitivo, com uso do teste Lista de Sentenças em Português. RESULTADOS: os LRSR dos indivíduos foram obtidos na relação sinal ruído de -7,57 dB e para indivíduos com perda auditiva neurossensorial, em -2,10 dB. Ao comparar os resultados de ambos os grupos, a análise estatística apontou diferença estatisticamente significante entre os valores dos LRSR sendo p<0,001. CONCLUSÃO: as relações sinal-ruído em que são obtidos os limiares de reconhecimento de sentenças no ruído (LRSR), em campo-livre são iguais a -7,57 dB para indivíduos com audição normal e - 2,10 dB para indivíduos com perda auditiva neurossensorial, havendo diferença estatisticamente significante entre os resultados dos grupos estudados.

Unilateral hearing loss and the use of hearing aid: speech recognition, benefit, self-perception of functional performance and satisfaction

“…Thus, based on Table 2 it was possible to observe that the adaptation of hearing aids in subjects with UHL provided better speech recognition performance in all positions evaluated, in silence and in noise, both in relation to the threshold and the percentage index, showing values of audibility and intelligibility similar to those reported in other studies with subjects with normal hearing 29,30 .…”

“…Also, in the present study, when subjects were evaluated with frontally occurring speech and ear-side noise with normal hearing, an even more favorable S/R ratio was required, this being -3.53. This shows marked difficulty in speech recognition when compared to the study conducted with normally hearing subjects 29 , who obtained S/R ratios of -11.12 for the right ear and -10.43 for the left ear when assessed in the same situation with speech presented frontally and noise lateralized to one of the ears.…”

Desenvolvimento do teste Listas de Sentenças Dicóticas em Português Brasileiro

“…In recent years, the SLP-BR test proved to be very versatile for research purposes (7,8,9,10) and have different goals and strategies of implementation, hence it can be used in various ways, according to the objective of raters. Therefore, a decision was made to develop the new proposal.…”

Hearing in Noise Test Brazil: standardization for young adults with normal hearing

“…7---9 In daily life, many communicative situations occur in environments where listening is impaired by the presence of competitive noise. 4,10 Because of this, and knowing that the same patient may have very different abilities for speech recognition in a quiet environment than in a noisy one, it is important to emphasize testing in a noisy environment. 3,11 In order to measure a patient's hearing difficulties, the phonoaudiologist needs to resort to a battery of tests that not only will allow the identification of a potential hearing loss, but also will analyze the understanding of auditory stimuli, including speech in clinical situations and mainly under conditions close to those found in everyday life.…”