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[hts-users:02681] Error during HMGenS in Speaker dependent training STRAIGHT demo


Dear All,

I have downloaded and been using the Speaker dependent training demo (STRAIGHT version, English), together with STRAIGHTV40 without any modifications. Demo runs smoothly until making unseen model (stc). During generating speech parameter sequence (stc), am facing following error.

 Generating Label alice01.lab
 Total number of frames = 3739
  PdfStream[1]: 3739 frames
  PdfStream[2]: 1188 frames
  PdfStream[3]: 3739 frames
 EM-based parameter generation (Hidden: MIX, STATE)
 WARNING [-7324]  StepBack: Bad data or over pruning
 in /home/raghavendra/installations/htk/HTKTools//HMGenS
 WARNING [-9999]  ParamGen: failed to compute output prob in /home/huang/installations/htk/HTKTools//HMGenS
  Iteration 1: Average LogP = -2.674512e+06
Error in /home/huang/installations/htk/HTKTools//HMGenS -A -B -C .....

Please help me to solve this problem.

Regards,
Huang.