High Quality Content by WIKIPEDIA articles! The voiced alveolar plosive is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents voiced dental, alveolar, and postalveolar plosives is d (although the symbol d? can be used to distinguish the dental version, see voiceless dental plosive), and the equivalent X-SAMPA symbol is d. Its manner of articulation is plosive or stop, which means it is produced by obstructing airflow in the vocal tract.