split ark files

[Ana Montalvo]

Hi all!
Is there any way to split ark files? My problem is that I have 4Gb ark files and I need to read the features in txt format, which make them even heavier. subset-feats only gives me the possibility of extract the n firsts feature-files, but I need to divide it in smaller ark files.
Any suggestions?
thx

[Daniel Povey]

If you copy the ark files to ark,scp (or write them that way at the
start), you can use the scp files instead which are more convenient
for splitting; and then you can copy those scp files, after splitting,
to new ark files. Read "I/O from a command line persspective" in the
documentation.

Dan

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[Ana Montalvo]

Thx for your answer Dan, but in orther to understand:
If I edit a .scp file, with the freatures I am interested in for example:

'mine.scp'
zccrk /feats_bnf_test.1.ark:6
zccrq /feats_bnf_test.1.ark:503691
zcdzz /feats_bnf_test.1.ark:1007376

Is it possible to create 'mine.ark' file having a big 'original.ark'
file containing the features of my interest and many more?
How could I do that?
thx a lot!!

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[Daniel Povey]

You can do something like
copy-feats scp:mine.scp ark:min.ark
but the real solution is to read the documentation page and understand
how the framework works.

[Ana Montalvo]

Thank you very much Daniel, all the documentation but specially your
prompt answers to kaldi users list are a great incentive to continue
working with Kaldi and it makes me feell as part of your team. I
really appreciate it, regards
ana