#! /bin/bash
  
  # Copyright 2016  Vimal Manohar
  # Apache 2.0
  
  if [ $# -ne 1 ]; then
    echo "This script outputs a mapping from recording to a list of utterances "
    echo "corresponding to the recording. It is analogous to the content of "
    echo "a spk2utt file, but is indexed by recording instead of speaker."
    echo "Usage: get_reco2utt.sh <data>"
    echo " e.g.: get_reco2utt.sh data/train"
    exit 1
  fi
  
  data=$1
  
  if [ ! -s $data/segments ]; then
    utils/data/get_segments_for_data.sh $data > $data/segments
  fi
  
  cut -d ' ' -f 1,2 $data/segments | utils/utt2spk_to_spk2utt.pl