texto do festival para fala incapaz de adicionar voz US BDL ARCTIC 0.95 da CMU

Question

Estou tentando instalar a voz CMU US BDL ARCTIC 0.95 para uso no festival.

Eu estou no debian 8 e tenho a versão 2.1 do festival

Aqui está o que eu fiz:

cd /usr/share/festival/voices/english/
sudo wget -c http://www.speech.cs.cmu.edu/cmu_arctic/packed/cmu_us_bdl_arctic-0.95-release.tar.bz2
sudo tar jxf cmu_us_bdl_arctic-0.95-release.tar.bz2 
sudo ln -s cmu_us_bdl_arctic cmu_us_bdl_arctic_clunits
sudo echo "(set! voice_default 'voice_cmu_us_bdl_arctic_clunits)" >> /etc/festival.scm

No entanto, quando o executo, recebo o erro:

$ echo "This is a test." | festival --tts
SIOD ERROR: unbound variable : voice_cmu_us_bdl_arctic_clunits
Error evaluating default voice: voice_cmu_us_bdl_arctic_clunits
continuing
-=-=-=-=-=- EST Error -=-=-=-=-=-
{FND} Feature Token_Method not defined

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