length expanded size cdr WAVE problems fmt ratio filename 0:44.26 7822796 B --- -- ---xx flac 0.4829 joepug2017-07-23t01.flac 2:14.46 23745836 B --- -- ---xx flac 0.5186 joepug2017-07-23t02.flac 3:13.70 34209884 B --- -- ---xx flac 0.5213 joepug2017-07-23t03.flac 3:48.47 40329788 B --- -- ---xx flac 0.5263 joepug2017-07-23t04.flac 2:54.06 30707756 B --- -- ---xx flac 0.5213 joepug2017-07-23t05.flac 0:26.74 4760492 B --- -- ---xx flac 0.4944 joepug2017-07-23t06.flac 13:22.44 141576552 B 0.5193 (6 files) App\Http\Controllers\Api\FileDownloadController::download(): Return value must be of type string, none returned