Results of Speech Recognition Index Done via Live Voice or Recorded Material in Individuals with Normal Hearing and with Sloping Sensorineural Hearing Loss
Introduction: Speech audiometry testing is important in diagnostic audiology and aims to measure the ability of an individual to perceive speech sounds encompassing both sensitivity measures as hearing acuity. The Speech Recognition Index, one of the tests that make up the battery of speech audiometry tests, uses monosyllabic or disyllabic words to determine the individual’s ability to understand speech in ideal listening conditions. This can be accomplished via live voice or recorded material.
Objective: To describe and compare the Speech Recognition Index results obtained through the evaluation of adults with normal hearing and sloping sensorineural hearing loss in two monitored situations: via live voice and recorded material.
Methods: Two groups were subjected to the Speech Recognition Index via live voice and recorded material at 40 dBSL: Group 1—50 individuals with normal hearing and Group 2—30 individuals with sloping sensorineural hearing loss.
Results: We found a statistically significant difference in the results of the test applied in the two listening situations only with Group 2. Qualitative analysis of the data reveals that Speech Recognition Index results are better when using the recorded material.
Conclusion: For this test, in particular, both forms of speech presentation stimulus can be used without prejudice for results in individuals with normal hearing; however, the use of recorded material is recommended for subjects with sloping hearing loss.