Return to Search
EN
Speech audiometry is an important hearing test that uses human speech as a stimulus to evaluate auditory functions. The primary goal of this test is to provide detailed information about a person's hearing ability by determining how they perceive, understand, and comfortably listen to speech sounds. Speech audiometry is typically evaluated using four main thresholds: Speech Reception Threshold (SRT), Speech Discrimination Score (SDS), Most Comfortable Loudness (MCL), and Uncomfortable Loudness Level (UCL).
* Speech Reception Threshold (SRT): This threshold refers to the lowest sound intensity at which patients can correctly repeat 50% of the words they hear. During the test, patients are presented with six three-syllable words at an average sound intensity of 10-15 dB above their assumed hearing threshold. As the patient correctly repeats words, the sound intensity is reduced by 5 dB, and new lists are presented. Based on established criteria and the number of words correctly repeated by the patient, the SRT value is determined.
* Speech Discrimination Score (SDS): SDS measures how accurately a patient understands 25 single-syllable words presented at a sound level determined by adding 25-40 dB to their Speech Reception Threshold result. The percentage obtained by multiplying the number of correct responses by 4 indicates the patient's speech discrimination ability. In individuals without hearing complaints, this rate is typically around 90%.
* Most Comfortable Loudness (MCL): This is the sound intensity level at which the patient hears speech sounds most comfortably and clearly. This threshold lies between the Speech Reception Threshold and the Uncomfortable Loudness Level.
* Uncomfortable Loudness Level (UCL): This indicates the highest sound level at which the patient begins to experience discomfort from the sound intensity.
These threshold values provide important clues about the type and degree of hearing loss. For example, in conductive hearing losses, SRT and UCL values may be higher than normal. For individuals with normal hearing, speech audiometry results are typically as follows: SRT 20 dB, MCL 40-60 dB, SDS 90-100%, and UCL 100-120 dB.
What are the Causes of Myocarditis (Inflammation of the Heart Muscle)?
* Speech Reception Threshold (SRT): This threshold refers to the lowest sound intensity at which patients can correctly repeat 50% of the words they hear. During the test, patients are presented with six three-syllable words at an average sound intensity of 10-15 dB above their assumed hearing threshold. As the patient correctly repeats words, the sound intensity is reduced by 5 dB, and new lists are presented. Based on established criteria and the number of words correctly repeated by the patient, the SRT value is determined.
* Speech Discrimination Score (SDS): SDS measures how accurately a patient understands 25 single-syllable words presented at a sound level determined by adding 25-40 dB to their Speech Reception Threshold result. The percentage obtained by multiplying the number of correct responses by 4 indicates the patient's speech discrimination ability. In individuals without hearing complaints, this rate is typically around 90%.
* Most Comfortable Loudness (MCL): This is the sound intensity level at which the patient hears speech sounds most comfortably and clearly. This threshold lies between the Speech Reception Threshold and the Uncomfortable Loudness Level.
* Uncomfortable Loudness Level (UCL): This indicates the highest sound level at which the patient begins to experience discomfort from the sound intensity.
These threshold values provide important clues about the type and degree of hearing loss. For example, in conductive hearing losses, SRT and UCL values may be higher than normal. For individuals with normal hearing, speech audiometry results are typically as follows: SRT 20 dB, MCL 40-60 dB, SDS 90-100%, and UCL 100-120 dB.