Stool color changes facts. Normal stool color is brown. This is due to the presence of bile in the stool. Normal stool color can range from light yellow to brown to almost black. If stool is red, maroon, black, clay-colored, pale, yellow, or green this may signify a problem.
08 February 2016. The longest continuous vocal note is 1 min 52 sec and was achieved by Alpaslan DurmuÅ (Turkey) at the KipdaÅ MÃ¼hendislik, Istanbul, Turkey, on 8 February 2016. The note was sustained above the required decibel threshold from a measurement distance of 2.5 metres.
Maximum Phonation Time. The maximum amount of time an individual can hold the letter e, which on average is 12-15 seconds. Patients with vocal fold paralysis and glottal incompetence may have limited maximum phonation time as short as two to three seconds.he maximum amount of time an individual can hold the letter e, which on average is 12-15 seconds. Patients with vocal fold paralysis and glottal incompetence may have limited maximum phonation time as short as two to three seconds.