Silence insertion during phoneme alignment

[Вячеслав Климков]

Is there a way to give kaldi an opportunity to optionally insert silence between words during alignment? It's often the case silence is not stated in transcription and alignment goes wrong. Thanks in advance

[Вячеслав Климков]

I found alignment where kaldi inserts silence. Maybe I can somehow tune insertion penalty, because I often observe it glue standalone single-phone word to predecessor word and assigns silence to the real word position.

вторник, 1 сентября 2015 г., 10:27:07 UTC+2 пользователь Вячеслав Климков написал:

[Daniel Povey]

The silence probability affects that- by default it's 0.5.  This is an argument or option to prepare_lang.sh

Dan

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[Вячеслав Климков]

Thanks, realigning doesn't help much, so trying pure retraining with bigger sil-prob. One more question about silence..It seems that if a silence mark is in transcription between two words, kaldi tries to insert silence there no matter what. Even if there is no actual pause between those words. can you confirm it?

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[Daniel Povey]

Yes, that is correct and it is the desired behavior.  If you don't trust your silences in the transcripts, remove them.

Dan