I have two problems when training the LSP features:
1-in data/Makefile there was this line
MGCEP = /usr/local/SPTK/bin/mcep
I had to change it to
MGCEP = /usr/local/SPTK/bin/mgcep
2-During training process, the system is unable to synthesize
speech and it crashes. So I had to comment this part
# synthesize waveform
#$line = "$EXCITE -p $fs $gendir/$base.pit | "
# . "$MGLSADF -m ".($ordr{'mgc'}-1)." -p $fs -a $fw -g $gm $mgc | "
# . "$X2X +fs | "
# . "$SOX -c 1 -s -w -t raw -r $sr - -c 1 -s -w -t wav -r $sr
$gendir/$base.wav";
in gen_wave function in training.pl script.
Only after those two changes I could train the lsp features successfully.