SABLE is an
XML markup language used to annotate texts for
speech synthesis. It defines tags that control how written words, numbers, and sentences are audibly reproduced by a computer. SABLE was developed as an informal joint project between Sun Microsystems, AT&T,
Bell Labs, and Edinburgh University (the initial letters of each make the word "SABLE") as an initiative to combine three previous speech synthesis markup languages
SSML, STML, and
JSML.