Les fonctionnalités audios définies par le World Wide Web Consortium dans le domaine des feuilles de style semblent n'être pas encore opérationnelles. A ce jour, aucun navigateur Internet ne prend en charge les propriétés audios.

Ainsi, apporter des exemples crédibles se révèle pour le moment insoluble.

Son au format .au
Son au format .wav
:speech:
h1, h2, h3, h4, h5, h6 { voice-family: paul; stress: 2; richness: 9; }

h1 { pitch: 1; pitch-range: 9; }
h2 { pitch: 2; pitch-range: 8; }
h3 { pitch: 3; pitch-range: 7; }
h4 { pitch: 4; pitch-range: 6; }
h5 { pitch: 5; pitch-range: 5; }
h6 { pitch: 6; pitch-range: 4; }

li { pitch: 6; richness: 6; }
dt  { pitch: 6; stress: 8;  richness: 6; }
dd { pitch: 6; richness: 6; }

pre, code, xmp, plaintext, key, tt { 
  pitch: 1; 
  pitch-range: 1; 
  stress: 1; 
  richness: 8; 
}

em { pitch: 6; pitch-range: 6; stress: 6; richness:5 }
strong { pitch: 6; pitch-range: 6; stress: 9; richness: 9; }
dfn { pitch: 7; pitch-range: 6; stress: 6; }
s, strike { richness: 0; }
i   { pitch: 6; pitch-range: 6; stress: 6; richness: 5 }
b { pitch: 6; pitch-range: 6; stress: 9; richness: 9; }
u { richness: 0; }

a:link    { voice-family: harry; }
a:visited { voice-family: betty;}
a:active  { voice-family: betty; pitch-range: 8; pitch: 8 }