timbre

noun3

1. •
   The quality of a sound independent of its pitch and volume.
2. •
   The pitch of a sound as heard by the ear, described relative to its absolute pitch.

   • When someone speaks after inhaling helium, his voice has a higher timbre. With sulfur hexafluoride, the result is a lower timbre.
3. •
   The crest on a (helmet atop a) coat of arms.

   • Quarterly the First quarter Siluer …, The second Siluer a Cheueron gules betweene three Castles Sables And to his timbre vpon his healme, an Elephants head in his proper Colours […] — 1925