wav to mp4 ffmpeg code example
Example 1: mp4 to wav ffmpeg
ffmpeg -i <infile> -ac 2 -f wav <outfile>
Example 2: how to convert m4a to wav with ffmpeg
ffmpeg -i inputFilename.m4a OutputFilename.wav
ffmpeg -i <infile> -ac 2 -f wav <outfile>
ffmpeg -i inputFilename.m4a OutputFilename.wav