online

ASR resources for CMU Sphinx in PT_BR

Paper: Baseline Acoustic Models for Brazilian Portuguese Using Kaldi Tools
A comparison between Kaldi and CMU Sphinx for Brazilian Portuguese was performed. Resources for both toolkits were developed and made publicly available to the community.

• sen4000_gau16.cd_cont_4000/: acoustic model (AM)
• dict/: phonetic dictionary (lexicon)
• lm/: n-gram language model (LM)
• gram/: context-free grammar (CFG) language model

NOTE: LM and CFG are mutually exclusive: if you use LM, it is senseless to use a grammar at the same time.

Testing with n-gram language model

pocketsphinx_continuous \
    -inmic yes \
    -hmm sen4000_gau16.cd_cont_4000/ \
    -dict dict/sen4000_gau16.dic \
    -lm lm/lapsam.lm

Testing with context-free grammar (finite state grammar)

pocketsphinx_continuous \
    -inmic yes \
    -hmm sen4000_gau16.cd_cont_4000/ \
    -dict dict/sen4000_gau16.dic \
    -fsg gram/tv_control.fsg 2> /dev/null

or

pocketsphinx_continuous \
    -inmic yes \
    -hmm sen4000_gau16.cd_cont_4000/ \
    -dict dict/sen4000_gau16.dic \
    -jsgf gram/tv_control.jsgf 2> /dev/null

Citation

If you use these resources or want to mention the paper referred above, please cite us as one of the following:

Batista, C., Dias, A.L., Sampaio Neto, N. (2018) Baseline Acoustic Models for Brazilian Portuguese Using Kaldi Tools. Proc. IberSPEECH 2018, 77-81, DOI: 10.21437/IberSPEECH.2018-17.

@inproceedings{Batista2018,
    author    = {Cassio Batista and Ana Larissa Dias and Nelson {Sampaio Neto}},
    title     = {{Baseline Acoustic Models for Brazilian Portuguese Using Kaldi Tools}},
    year      = {2018},
    booktitle = {Proc. IberSPEECH 2018},
    pages     = {77--81},
    doi       = {10.21437/IberSPEECH.2018-17},
    url       = {http://dx.doi.org/10.21437/IberSPEECH.2018-17}
}

Grupo FalaBrasil (2020) - https://ufpafalabrasil.gitlab.io/
Universidade Federal do Pará (UFPA) - https://portal.ufpa.br/
Cassio Batista - https://cassota.gitlab.io/