[hts-users:01462] hts_engine-0.99 does not generate normal speech in HTS-demo using 12-th order LSP

["Xuchen Yao" <xuchenyao@xxxxxxxxx>]

Hi,

I noticed that many speeches generated by hts_engine are truncated while that generated by SPTK are normal. Here's my running environment:

software:

HTS2.1RC2, HTS-demo_CMU-ARCTIC-SLT, hts_engine-0.99

configs:

Config 1: 12-th order LSP,     linear gain

                 speeches generated by SPTK are OK, while wave files generated by hts_engine are truncated (silence in the wave files).

Config 2: 24-th order Mel-cepstrum

                 speeches generated by SPTK and hts_engine are both OK.


The questions are:

1. Why are the speeches generated by hts_engine using 12th order LSP (39th order in all) truncated? Is it because the instability of the software, or I didn't run the demo in the right way?

2. Speeches in Config 2 sound better than those in Config 1. Could someone provide any experience that on what condition the speech generated from LSP features achieve the best quality?

Thank you.

Xuchen