(n.) The quality or state of being sonorous; sonorousness.

allophone alveolar apico-alveolar apico-dental articulation aspiration assimilation bassness bilabial cacuminal cerebral check consonant continuant crescendo deepness dental diphthong dissimilation epenthetic vowel explosive fullness glide glottal glottalization guttural hollowness intensity labial labialization labiodental labiovelar laryngeal lateral lingual liquid loudishness loudness lowness manner of articulation mellowness modification monophthong morphophoneme mute nasal occlusive palatal parasitic vowel peak pharyngeal pharyngealization phone phoneme plangency plosive prothetic vowel resonance retroflex richness segmental phoneme semivowel sonant sonorousness speech sound stop surd surge surge of sound swell swelling syllabic nucleus syllabic peak syllable transition sound triphthong velar vibrancy vocable vocalic vocoid voice voiced sound voiceless sound voicing volume vowel