FFMPEG audio convert script (FLAC ➜ AIFF, WAV ➜ AIFF, M4A ➜ MP3)

audio-convert.sh

#!/bin/bash

toConvertFolder="to-convert/"
convertedFolder="converted/"

mkdir -p $convertedFolder

# FLAC to AIFF
find $toConvertFolder -type f -name "*.flac" | while read line; do
        newFilename="${line/%.flac/.aiff}"
        printf "From ${line}\n"
        printf "To ${newFilename}\n"
        ffmpeg -y -nostdin -i "${line}" -write_id3v2 1 -c:v copy "${newFilename}" && rm "${line}" && mv "${newFilename}" "${convertedFolder}"
done

# WAV to AIFF
find $toConvertFolder -type f -name "*.wav" | while read line; do
        newFilename="${line/%.wav/.aiff}"
        printf "From ${line}\n"
        printf "To ${newFilename}\n"
        ffmpeg -y -nostdin -i "${line}" -write_id3v2 1 -c:v copy "${newFilename}" && rm "${line}" && mv "${newFilename}" "${convertedFolder}"
done

# M4A to MP3
find $toConvertFolder -type f -name "*.m4a" | while read line; do
        newFilename="${line/%.m4a/.mp3}"
        printf "From ${line}\n"
        printf "To ${newFilename}\n"
        ffmpeg -y -nostdin -i "${line}" -c:v copy -c:a libmp3lame -q:a 4 "${newFilename}" && rm "${line}" && mv "${newFilename}" "${convertedFolder}"
done