1) Quality 2) Stridence 3) Stridency 4) Timber 5) Timbre 6) Tone 7) Type of Sound 1) Stridence 2) Stridency 
Shrillness is a word used to describe the quality of sounds that have a high-pitched, strident, raucous, screeching or harsh character, such as those produced by a trumpet or piccolo, but it can also be used to describe a widely recognised and puzzling phenomenon whereby certain sounds are perceived as psychologically painful or aversive to a degr...
• (n.) The quality or state of being shrill.
Shrill'ness noun The quality or state of being shrill. 
[n] - having the timbre of a loud high-pitched sound
stridence noun having the timbre of a loud high-pitched sound