The voiced palatal fricative is a very rare sound, occurring in only seven of the 317 languages surveyed by the origical UPSID database.citation needed In only two of the languages (Komi, Margi) this sound occurs along with its voiceless counterpart.
Its manner of articulation is fricative, which means it is produced by constricting air flow through a narrow channel at the place of articulation, causing turbulence.
Martínez-Celdrán, Eugenio; Ana Ma. Fernández-Planas & Josefina Carrera-Sabaté (2003), "Castilian Spanish", Journal of the International Phonetic Association33 (2): 255-259
Nicolaidis, Katerina (2003), "An electropalatographic study of palatals in Greek", written at Athens, in D. Theophanopoulou-Kontou, Current trends in Greek Linguistics (in Greek), Patakis, 108-127
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Where symbols appear in pairs, the one to the right represents a voiced consonant. Shaded areas denote pulmonic articulations judged impossible.