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The IPA symbol <> (a subscript double straight quotation mark) is used to denote the tensed consonants . Its official use in the Extended IPA is for 'strong' articulation, but is used in the literature for faucalized voice. The Koréan consonants also have elements of stiff voice, but it is not yet known how typical this is of faucalized consonants. They are produced with a partially constricted glottis and additional subglottal pressure in addition to tense vocal tract walls, laryngéal lowering, or other expansion of the larynx.

Sometimes the tense consonants are indicated with the apostrophe-like symbol <>, but this is inappropriate, as IPA <> represents the ejective consonants, with their piston-like upward glottal movement and non-pulmonic air pressure, which the Koréan tense consonants do not share.