ST: Assertion n == feat->stream_len[0...

[marekl]

Hi Nicolay,
I have started tests with MMIE training getting in the MODULE: 60 Lattice
Generation, Phase2 the following error

INFO: info.c(65): Host: 'ubuntu'
INFO: info.c(69): Directory: '/home/monika/workspace/training'
INFO: info.c(73): /home/monika/workspace/training/bin/.libs/lt-sphinx3_align Compiled on: Aug 25 2010, AT: 16:49:24

INFO: cmd_ln.c(512): Parsing command line:
/home/monika/workspace/training/bin/.libs/lt-sphinx3_align \
    -hmm /home/monika/workspace/training/model_parameters/boolware.cd_cont_8000 \
    -senmgau .cont. \
    -mixwfloor 1e-08 \
    -varfloor 0.0001 \
    -dict numlat/boolware.falign.dict \
    -fdict numlat/boolware.falign.fdict \
    -ctl /home/monika/workspace/training/etc/boolware.fileids \
    -ctloffset 11628 \
    -ctlcount 3876 \
    -cepdir /home/monika/workspace/training/feat \
    -cepext .mfc \
    -insent numlat/boolware.aligninput \
    -outsent numlat/boolware.alignedtranscripts.4 \
    -wdsegdir numlat,CTL \
    -beam 1e-60 \
    -agc none \
    -cmn current \
    -varnorm no \
    -feat 1s_c \
    -ceplen 13

(...)

INFO:   Initialization of the log add table
INFO:   Log-Add table size = 29356 x 2 >> 0
INFO:   
INFO: feat.c(848): Initializing feature stream to type: '1s_c', ceplen=13, CMN='current', VARNORM='no', AGC='none'
INFO: cmn.c(142): mean[0]= 12.00, mean[1..12]= 0.0
INFO:   Reading Feature Space Transform from: /home/monika/workspace/training/model_parameters/boolware.cd_cont_8000/feature_transform
lt-sphinx3_align: lda.c:128: feat_read_lda: Assertion `n == feat->stream_len[0]' failed.

parameters for LDA and MMLT training are the same as in previous trainings
MMIE parameters:

$CFG_NUMLAT_DIR = "numlat";
$CFG_DENLAT_DIR = "denlat";
$CFG_LANGUAGEMODEL = "boolware.DMP";
$CFG_LANGUAGEWEIGHT = "11.5";
$CFG_BEAMWIDTH      = "1e-100";
$CFG_WORDBEAM       = "1e-80";
$CFG_WORDPENALTY    = "0.2";

$CFG_ABEAM = "1e-50";
$CFG_NBEAM = "1e-10";
$CFG_PRUNED_DENLAT_DIR = "pruned_denlat";

$CFG_LATTICE_DIR = "lattice";

$CFG_MMIE_TYPE = "best";
$CFG_MMIE_CONSTE = "3.0";
$CFG_MMIE_MAX_ITERATIONS = 5;

Do you have any idea what could cause such a problem?

[marekl]

just crossed my mind that this might by the same problem with strncpy in
Sphinx3 as in Sphinx Train. Is it possible?

[Nickolay V. Shmyrev]

Hello Marek

Sphinx3_align doens't support cepwin features out-of-box yet. You need to
apply cepwin patch to sphinxbase in order to read cepwin features.

[marekl]

Thanks a lot, by the way - it would be useful to add such remark to MMIE
tutorial for Sphinx4 users (now I can remember that you have mentioned
cepwin.diff file on your blog, but till now I really didn't needed this patch
to train and work with sphinx4)

[Nickolay V. Shmyrev]

It would be actually useful to add cepwin support to sphinxbase, probably it
could be named like "1s_3x" and "1s_4x" unfortunately I'm unable to find the
time to do that.

[Nickolay V. Shmyrev]

K, I did that. With sphinxbase trunk you can use feature type 1s_3c and 1s_4c
for cepwin 3 and 4.

[marekl]

Great! Thx