# yum install festival festvox*

# festival

festival> (voice.list)

(nitech_us_slt_arctic_hts

 nitech_us_rms_arctic_hts

 nitech_us_clb_arctic_hts

 nitech_us_awb_arctic_hts

 nitech_us_bdl_arctic_hts

 nitech_us_jmk_arctic_hts

 ked_diphone

 kal_diphone)

festival> (set! voice_default 'nitech_us_jmk_arctic_hts)

festival> (SayText "Hello, world!")

festival> (quit)

# text2wave test.txt -o test.aiff -otype aiff

# echo "How are you?" | festival --tts