[hts-users:01015] question about HTS lib usage

["Yufeng Hao" <yufenghao@xxxxxxxxx>]

Hi, all.

I have  trained HTS-demo sccessful. And I encounter some problems about the trained lib usage.
I looked though "Training.pl", and found that demo sound are
synthesized by HMGENS and SPTK, not with hts_engine builded by festival
and hts toolkit. To synthesizing with hts_engine, I designed the
following experiment:
     1. Traing HTS demo with following configurations, and then make:
               
./configure MGCORDER=24 MGCLSP=0 GAMMA=0 FREQWARP=0.42 
     2. Write a bash script to synthesize with HTS API v0.9
             
a). Use the lib result of step 1 as HTS voice model
              b). "alice01.lab" in demo/data/labels/gen
              script list for example:

./bin/hts_engine -td ./data/model/demo/tree-dur.inf -tf ./data/model/demo/tree-lf0.inf \
-tm  ./data/model/demo/tree-mgc.inf       -md ./data/model/demo/dur.pdf      -mf ./data/model/demo/lf0.pdf \
-mm ./data/model/demo/mgc.pdf            -df ./data/model/demo/lf0.win1      -df ./data/model/demo/lf0.win1 \
-df ./data/model/demo/lf0.win1               -dm ./data/model/demo/mgc.win1  -dm ./data/model/demo/mgc.win1 \
-dm ./data/model/demo/mgc.win1          -od ./data/dur/demo/alice01.dur      -of ./data/lf0/demo/alice01.lfo   \
-om ./data/mgc/demo/alice01.mgc         -or ./data/raw/demo/alice01.raw     -ow ./data/wav/demo/alice01.wav   \
-ot  ./data/trace/demo/alice01.trace             ./data/lab/alice01.lab

Synthesizing ./data/lab/alice01.lab ......

Synthesizing works fine. But the synthesized wave are all slience. I
looked into alice01.trace and found that estimated duration are all
right, but spectrum and f0 are 0 for all frames. I gdb the hts_engine,
but nothing discovered due to the lack of related knowledges. :(

So I wish to know 
1. how to use the trained HTS model in festival and isolated hts engine API?
2. does the hts synthesis engine related to the feature-based hts model
? That is, If I train HTS model with MGC-LSP coefficients, should I
synthesize with the same HTS engine API v0.9 ?

Thanks in advance .

Best regards

YF HAO