timbre

The quality of a sound independent of its pitch and volume.

It was a hard whisper to catch at first, since the grey moustache concealed all movements of the lips, and something in its timbre disturbed me greatly; but by concentrating my attention I could soon make out its purport surprisingly well.

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.

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 […]

The basilican pavilion [...] has frequently appeared on banners since the 13th century, but the pope has used it only rarely, as a timbre or crest above his coat of ARMS (a few examples exist from the time of MARTIN V).