Postalveolar (后齿龈音) Postalveolar sounds involve the area just behind the alveolar ridge as the passive articulator. The active articulator may be either the tongue tip or(usually) the tongue blade --diacritic symbols can be used if it matters which. English postalveolars include [F] [,] ldv 2021/2/23 132021/2/23 13 Postalveolar （后齿龈音） • Postalveolar sounds involve the area just behind the alveolar ridge as the passive articulator. The active articulator may be either the tongue tip or (usually) the tongue blade -- diacritic symbols can be used if it matters which. English postalveolars include [ F], [ V ], [tF] [dV]