length expanded size cdr WAVE problems fmt ratio filename 0:43.69 7747532 B --- -- ---xx flac 0.3964 arihest2013-05-19.fm.t01.flac 3:58.04 41992652 B --- -- ---xx flac 0.4043 arihest2013-05-19.fm.t02.flac 4:11.24 44332892 B --- -- ---xx flac 0.3834 arihest2013-05-19.fm.t03.flac 4:01.38 42601820 B --- -- ---xx flac 0.3912 arihest2013-05-19.fm.t04.flac 3:23.40 35903324 B --- -- ---xx flac 0.3946 arihest2013-05-19.fm.t05.flac 0:26.34 4666412 B --- -- ---xx flac 0.4172 arihest2013-05-19.fm.t06.flac 16:44.59 177244632 B 0.3940 (6 files) App\Http\Controllers\Api\FileDownloadController::download(): Return value must be of type string, none returned