#!/usr/bin/env bash
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. ./path.sh || exit 1;
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# Begin configuration section.
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fbankdir=
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nj=32
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cmd=./utils/run.pl
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feats_dim=80
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config_file=
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scale=1.0
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echo "$0 $@"
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. utils/parse_options.sh || exit 1;
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# shellcheck disable=SC2046
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head -n $(awk -v lines="$(wc -l < ${fbankdir}/wav.scp)" -v scale="$scale" 'BEGIN { printf "%.0f\n", lines*scale }') ${fbankdir}/wav.scp > ${fbankdir}/wav.scp.scale
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split_dir=${fbankdir}/cmvn/split_${nj};
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mkdir -p $split_dir
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split_scps=""
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for n in $(seq $nj); do
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split_scps="$split_scps $split_dir/wav.$n.scp"
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done
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utils/split_scp.pl ${fbankdir}/wav.scp.scale $split_scps || exit 1;
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logdir=${fbankdir}/cmvn/log
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$cmd JOB=1:$nj $logdir/cmvn.JOB.log \
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python utils/compute_cmvn.py \
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--dim ${feats_dim} \
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--wav_path $split_dir \
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--config_file $config_file \
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--idx JOB \
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python utils/combine_cmvn_file.py --dim ${feats_dim} --cmvn_dir $split_dir --nj $nj --output_dir ${fbankdir}/cmvn
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python utils/cmvn_converter.py --cmvn_json ${fbankdir}/cmvn/cmvn.json --am_mvn ${fbankdir}/cmvn/am.mvn
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echo "$0: Succeeded compute global cmvn"
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