The Speech Audiometry Test is a critical component of hearing assessments used to evaluate a person's ability to understand and process spoken language. Unlike pure-tone audiometry, which measures the hearing threshold for pure tones, speech audiometry focuses on how well a person can hear and comprehend speech at various volume levels and in different conditions.
Assess Speech Recognition: Measures how well a person can understand spoken words and sentences.
Determine Speech Reception Threshold (SRT): Identifies the softest level at which a person can correctly repeat back simple words or sentences.
Evaluate Speech Discrimination: Assesses how well a person can distinguish between different speech sounds at a comfortable listening level.
Guide Treatment: Helps in planning hearing aid fittings and other rehabilitative measures by understanding speech perception abilities.
Preparation: The patient is seated in a soundproof room with headphones or insert earphones. The audiologist will use a calibrated speech signal to present words or sentences.
Speech Reception Threshold (SRT):
Test Setup: The patient listens to a list of words presented at decreasing intensity levels.
Response: The patient repeats the words they hear. The lowest intensity at which the patient can correctly repeat 50% of the words is recorded as the SRT.
Speech Discrimination Test:
Test Setup: The patient listens to a set of words or sentences at a fixed comfortable level.
Response: The patient repeats or identifies the words or sentences. The percentage of correctly identified words helps assess speech discrimination ability.
Results and Interpretation:
SRT Results: Provides information about the threshold level at which speech can be understood.
Speech Discrimination Results: Shows how well the patient can discriminate between different speech sounds, which can be affected by hearing loss or other auditory disorders.
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