What does SDT stand for in audiology?

In audiology, SDT stands for Speech Detection Threshold. This term refers to the lowest intensity level at which a person can detect the presence of speech sounds. It measures an individual's ability to perceive speech, regardless of whether they can understand it. The concept of SDT is particularly important in evaluating hearing abilities because it helps clinicians understand a patient's sensitivity to speech, which can be crucial in developing appropriate hearing aid fittings or other auditory interventions.

In audiological assessments, the Speech Detection Threshold gives valuable insights into how well a patient can hear speech in various environments. Unlike related measures, such as Speech Discrimination Threshold, which assesses the clarity or understanding of speech at comfortable listening levels, SDT focuses solely on detection. This aspect allows audiologists to tailor rehabilitation strategies specifically for individuals who may not respond well to clearer speech presentations but can perceive speech sounds when they are made loud enough.