length expanded size cdr WAVE problems fmt ratio filename 17:47.173 307345964 B cxx -- ---xx flac 0.6952 cats2018-11-24T01.flac 12:53.307 222712364 B cxx -- ---xx flac 0.6894 cats2018-11-24T02.flac 16:01.000 276768044 B cxx -- ---xx flac 0.7048 cats2018-11-24T03.flac 10:30.000 181440044 B cxx -- ---xx flac 0.6821 cats2018-11-24T04.flac 28:12.093 487322924 B cxx -- ---xx flac 0.7033 cats2018-11-24T05.flac 26:17.240 454245164 B cxx -- ---xx flac 0.6743 cats2018-11-24T06.flac 14:51.963 256885442 B cxx -- ---xx flac 0.7122 cats2018-11-24T07.flac 126:32.777 2186719946 B 0.6942 (7 files) App\Http\Controllers\Api\FileDownloadController::download(): Return value must be of type string, none returned