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Release 4.3.1
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@LeeAkinobu LeeAkinobu released this 24 Sep 08:28
· 283 commits to master since this release
v4.3.1
10a2220

Version 4.3 includes several new features to support on-line DNN-HMM
decoding: decoding with state output probability vectors ("outprob
vectors") as input, network-based feature / outprob vector input,
improved cepstral variance normalization (CVN) for real-time
recognition, FBANK/MELSPEC feature support and so on. Also the tool
"adintool" is now capable of extracting and sending feature vectors in
real-time via network.

Version 4.3.1 is a bug fix release.

New options:

  • [-input vecnet] read feature / outprob vectors from network
  • [-input outprob] read outprob vectors from HTK parameter file
  • [-outprobout [file]] save computed outprob vectors to HTK file (for debug)

A short test of network-based feature transmission:

[server]
% julius -C file.jconf -input vecnet

[client with microphone]
% adintool -in mic -out vecnet -paramtype MFCC_E_D_N_Z -veclen 25 -C file.jconf

You should set appropriate feature vector's type and length to
adintool with "-paramtype TYPE", "-veclen length". You should also
set feature extraction parameters as the same as Julius. Since
adintool uses JuliusLib for the extraction, it accepts Jconf file and
setting options as same as Julis. So the easier way is to apply the
same Jconf file to adintool with "-C" option as shown above.

ChangeLog

4.3.1 (2014.01.15)

Fixed bugs:

  • Compilation error on OS X.
  • Unnecessary debug messages in adintool.
  • Several bugs around reading / applying "-cmnload".

4.3 (2013.12.25)

New features:

  • FBANK and MELSPEC support.
  • Network-based feature vector and outprob vector input.
  • Static mean/variance for cepstral mean/variance normalization.
  • State output probability (i.e. outprob) vector input for DNN-HMM decoding.
  • State ID "" extension of hmmdefs for DNN-HMM decoding.
  • Real-time feature extraction and network transmittion by 'adintool'.

Modified:

  • "mkbinhmm" now keeps the state order and id of the original hmmdefs.
  • For portaudio, pause / resume operation synced between engine and audio I/O
  • Load / save cepstral mean/variance of CMN/CVN in HTK text format.

New options:
[-input vecnet] read feature / outprob vectors from network
[-input outprob] read outprob vectors from HTK parameter file
[-outprobout [file]] save computed outprob vectors to HTK file (for debug)

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