node-kaldi-online-nnet3-decoder

Be aware that the decoder is designed for Kaldi "Grammar FST with on the fly parts" https://kaldi-asr.org/doc/grammar.html

This module was put together for one of my side project. I'm not a C++ dev so it might not be perfectly functional.

Pull requests are welcome :)

Compiling from source

A compiled version of Kaldi, OpenBLAS and OpenFST.

Set environment variable KALDI_PATH to your Kaldi root directory

Windows

Requires CMake and Visual Studio 2017+ for Windows installed

• Download Kaldi source code from
• Extract in ${KALDI_PATH}

Compiling OpenBlas with LAPACK (static)

See: https://github.com/xianyi/OpenBLAS/wiki/How-to-use-OpenBLAS-in-Microsoft-Visual-Studio

• In WSL 2 (debian)
• Download OpenBlas source code from https://github.com/xianyi/OpenBLAS
• Extract in ${KALDI_PATH}/tool/openblas
• cd ${KALDI_PATH}/tool/openblas
• make BINARY=64 HOSTCC=gcc CC=x86_64-w64-mingw32-gcc FC=x86_64-w64-mingw32-gfortran CFLAGS='-static-libgcc -static-libstdc++ -static -ggdb' FFLAGS='-static' && mv -f libopenblas.dll.a openblas.lib

Compiling Kaldi (static AND shared)

./configure --static --shared --use-cuda=no --mathlib=OPENBLAS make -j <NUM_CPU> clean depend ; make biglib -j <NUM_CPU>