Finetuning a VOSK model

[ErnstTmp]

I tried to run the fine-tuning script as you suggested in Issue #773, but I could not finish it since L.fst was missing. Also, it seems to require the alignments.
align_lats.sh also seems to fail. The error messages are this:

Stage 5
Align the new dataset with source NN
Wed Dec 8 22:19:16 CET 2021

steps/nnet3/align_lats.sh --cmd utils/run.pl --nj 8 --acoustic-scale 1.0 --scale-opts --transition-scale=1.0 --self-loop-scale=1.0 --online-ivector-dir exp/nnet3_chain/ivectors_finetune_sp_vp_hires --generate_ali_from_lats true data/finetune_sp_vp_hires data/lang ./exp/model_src_dir exp/nnet3_chain/lats_finetune_sp_vp_hires
steps/nnet2/check_ivectors_compatible.sh: WARNING: One of the directories do not contain iVector ID.
steps/nnet2/check_ivectors_compatible.sh: WARNING: That means it's you who's reponsible for keeping
steps/nnet2/check_ivectors_compatible.sh: WARNING: the directories compatible
steps/nnet3/align_lats.sh: no such file data/lang/L.fst

In the beginning of run_finetune_tdnn_1a_daanzu.sh it says that these files are needed:

tree_dir (tree final.mdl ali.*.gz phones.txt)
lang_dir (oov.int L.fst words.txt phones.txt phones/disambig.int)
conf_dir (mfcc.conf mfcc_hires.conf)

Missing are in the vosk model the files Ali*.gz and L.fst. How can I overcome this?

Thanks, Ernst

[LuggerMan]

#185 LIMBO, you are welcome

[nshmyrev]

Yeah, lets discuss this in #185