Calculate hash of FLAC audio stream with FFMPEG

flac_audio_stream_hash.sh

#! /usr/bin/env bash
# This converts each flac file in a given folder into a raw PCM bit stream.
# The raw bit stream can be used to perform a metadata-agnostic comparison
# with other audio streams.
for file in *.flac; do
  # -ar = sampling rate
  # -ac = number of audio channels
  # -f = sample format (s16le = 16bit, little-endian)
  ffmpeg -i "$file" -loglevel error -ar 44100 -ac 2 -f s16le "$file.pcm"
  md5sum "$file.pcm"
  rm "$file.pcm"
done