What is the lowest level at which speech can be detected called?

The lowest level at which speech can be detected is referred to as the Speech Detection Threshold. This terminology is used in audiology and hearing evaluations to denote the faintest level of speech sounds that an individual can perceive, irrespective of whether they can understand or recognize the words. The Speech Detection Threshold is often tested using speech stimuli, allowing the audiologist to determine the minimum intensity level at which the patient can hear speech.

Other terms mentioned, such as Speech Recognition Threshold, relate specifically to the lowest level at which a person can correctly recognize or repeat back words, which is generally at a higher intensity level than mere speech detection. Minimum Auditory Threshold typically refers to the lowest intensity level at which any sound can be detected and is a broader term not specific to speech. Auditory Processing Threshold involves a different concept focused on how the brain interprets or processes sounds, rather than detection at the level of hearing. Each of these terms serves different purposes in the assessment of hearing and speech comprehension, emphasizing the distinct nature of the Speech Detection Threshold.