Point of subjective loudness equality is measured by bracketing two 71 percent discrimination thresholds

Evidence

For each condition, listeners completed two loudness discrimination threshold tasks. These adaptive thresholds served to bracket the point of subjective loudness equality (PSLE): one was the 71 % threshold for identifying when a monaural stimulus was louder than a binaural one, and the other was the 71 % threshold for identifying when the monaural stimulus was quieter than a binaural one. For a given condition, the two adaptive tracks started with the adapted (monaural) sound level 15 dB above and below the level of the reference (binaural) stimulus, respectively. In each task, the listeners were required to identify the louder of two stimuli in a 2-down, 1-up adaptive procedure with six reversals. The two thresholds were averaged to yield a PSLE for that condition. — Dijk, Pim van, Physiology, Psychoacoustics and…, 1536

Categorization

Category: Definitional Content

• DEFINE: Defines the PSLE method: two adaptive thresholds that bracket equality, then averaged.

Related

• Loudness equality between monaural and binaural stimuli is measured by bracketing two adaptive thresholds. (similarity 0.96)
• Sensation level and per-band audiogram equalization are distinct ways to control audibility (similarity 0.84)
• Loudness is measured either by rating magnitude or by matching equal loudness (similarity 0.83)
• Loudness is measured psycho-acoustically via magnitude estimation against a reference (similarity 0.82)
• Loudness is the sensation most directly tied to sound intensity (similarity 0.82)
• People with identical audiometric thresholds can perceive loudness differently. (similarity 0.82)
• Humans discriminate level differences of under half a decibel across a 100 dB range (similarity 0.81)
• Loudness balancing measures loudness by matching a test sound’s level to a reference (similarity 0.81)
• Binaural loudness is measured by matching against a monaural comparison tone in filtered noise (similarity 0.81)
• Two distinct loudness distributions are used in measurement (similarity 0.81)
• Magnitude estimation of loudness yields only relative, not absolute, values. (similarity 0.81)
• Perceived-loudness matching often needs separate listening tests to achieve (similarity 0.80)
• Listeners with identical hearing thresholds differ in suprathreshold loudness perception (similarity 0.80)
• Perceived loudness can be measured by iterative ratio-matching across subjects (similarity 0.80)
• Auditory assessment must account for the listener’s response bias, not just sensitivity (similarity 0.80)