This workflow migrates an input list (available on HDFS) of mp3 files (available on NFS) to wav files (in output directory on NFS) using an ffmpeg Hadoop job. The workflow then compares content of the original mp3 and the migrated wav by first converting the two files to wav using an mpg123 Hadoop job and the identity function respectively, and then using an xcorrSound waveform-compare Hadoop job. The needed Hadoop jobs are available from https://github.com/statsbiblioteket/scape-audio-qa-ex...