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Is it possible to change the voice that Mac OS X uses for the say command? How?

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up vote 4 down vote accepted

By default it uses the System Voice set in the Text to Speech page of the Speech panel of System Preferences. Otherwise, you can use the -v option with one of the named voices:

say -v Zarvox "found it in the man page"
say -v Agnes "found it in the man page"
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man say yields this

  -v voice, --voice=voice
       Specify the voice to be used. Default is the voice selected in
       System Preferences.
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You can permanently change the voice by changing the System Voice in System Preferences -> Dictation & Speech -> Text to Speech

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