length expanded size cdr WAVE problems fmt ratio filename 1:12.853 20981804 B cxx -- ---xx flac 0.5811 AS2017-11-04T01.flac 4:43.587 81673004 B cxx -- ---xx flac 0.6837 AS2017-11-04T02.flac 6:05.493 105262124 B cxx -- ---xx flac 0.6469 AS2017-11-04T03.flac 9:08.360 157927724 B cxx -- ---xx flac 0.6558 AS2017-11-04T04.flac 5:27.400 94291244 B cxx -- ---xx flac 0.6409 AS2017-11-04T05.flac 6:37.920 114601004 B cxx -- ---xx flac 0.6341 AS2017-11-04T06.flac 5:08.560 88865324 B cxx -- ---xx flac 0.6366 AS2017-11-04T07.flac 6:31.013 112611884 B cxx -- ---xx flac 0.6794 AS2017-11-04T08.flac 44:55.187 776214112 B 0.6517 (8 files) App\Http\Controllers\Api\FileDownloadController::download(): Return value must be of type string, none returned