Find the number of authors of the paper 'Phoneme-dependent speech synthesis in the time and frequency domains'.
Mention the number of authors of the paper 'Phoneme-dependent speech synthesis in the time and frequency domains'.
SELECT ?answer WHERE { <https://dblp.org/rec/conf/interspeech/Fries93> <https://dblp.org/rdf/schema#numberOfCreators> ?answer }
<https://dblp.org/rec/conf/interspeech/Fries93>