#! /usr/bin/env bash

cd ../.. > /dev/null

# download data, generate manifests
PYTHONPATH=.:$PYTHONPATH python data/aishell/aishell.py \
--manifest_prefix='data/aishell/manifest' \
--target_dir='~/.cache/paddle/dataset/speech/Aishell'

if [ $? -ne 0 ]; then
    echo "Prepare Aishell failed. Terminated."
    exit 1
fi


# build vocabulary
python tools/build_vocab.py \
--count_threshold=0 \
--vocab_path='data/aishell/vocab.txt' \
--manifest_paths 'data/aishell/manifest.train' 'data/aishell/manifest.dev'

if [ $? -ne 0 ]; then
    echo "Build vocabulary failed. Terminated."
    exit 1
fi


# compute mean and stddev for normalizer
python tools/compute_mean_std.py \
--manifest_path='data/aishell/manifest.train' \
--num_samples=2000 \
--specgram_type='linear' \
--output_path='data/aishell/mean_std.npz'

if [ $? -ne 0 ]; then
    echo "Compute mean and stddev failed. Terminated."
    exit 1
fi


echo "Aishell data preparation done."
exit 0