Retrieving "Pure Tone" from the archives

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1. Psychoacoustics

   Linked via "pure tone"

   Auditory Thresholds and Sensitivity
   The primary focus of early psychoacoustic research involved mapping the limits of human hearing. The absolute threshold of hearing (ATH) defines the minimum sound pressure level (SPL) required for a listener to detect a pure tone $50\%$ of the time. This threshold is highly dependent on frequency, exhibiting a characteristic U-shaped curve in the [audiogram](/ent…