Saxophone passages written in sixteenth notes were also a Kenton trademark, as was his use of the full range of loudness levels that could be extracted from a band.
To test the system, the board was exposed to three different kinds of sound, of differing loudness levels.
A variation of one phon in the loudness level of a sound is approximately the smallest change in sound-pressure level detectable by the human ear under normal listening conditions.
Two groups of responders on the noise annoyance questionnaire attended the laboratory for the second stage involving a determination of the uncomfortable loudness level (ULL) by two methods (Békésy and analogue adjustment) and for two types of sound source (white noise and a 1 kHz tone).
Previous studies have shown that ARTs are related to thresholds of the uncomfortable loudness level (UCL) and can be used to estimate the UCL [22 24].
While no subject in our sample had complete abatement of their tinnitus percept, active but not sham rTMS significantly reduced the loudness level of the tinnitus perception on the order of 4.5 dB; improved subscales in several content areas on the THQ, and down regulated (reduced) glutamate concentrations specific to the auditory cortex of the left temporal lobe that was stimulated.
The upper limit of hearing, where sound begins to become uncomfortably loud, is referred to as the threshold of discomfort (or uncomfortable loudness level).
The loudness level of a sound is a subjective, rather than an objective, measure.
While consensus was reached for most measures, there was no agreement on the safety of performing REMs at the highest loudness level (80 dB SPL), testing ULLs, and loud sound check for patients with tinnitus.
The loudness level, in phons, of the measured sound is then equal to the sound-pressure level, in decibels, of the adjusted reference sound above the standard reference level, which is the minimum audible threshold.
