I also met with similar problem when using hts_engine to synthesize wave in HTS-demo_CMU-ARCTIC-SLT_STRAIGHT.
Hello,
when I synthesise waveforms with hts_engine, I don't receive any errors, but get waveforms without any signal as the output.
I used hts_engine for a different voice and got the correct output! I also have all models I usually need for synthesis!
I compared the wavefile sizes of the silent waveforms to the wavefile sizes of my correctly synthesised waveforms from a different voice, and they all have approximately the same size.
Since I did not receive any substantial errors during training, I assume that the error occurred during feature extraction at synthesis time. I analysed the synthesised waveforms, and they don't have any feature values.
I'd appreciate any suggestions on how to solve this problem.
Thanks,
Kathrin Haag