length expanded size cdr WAVE problems fmt ratio filename 2:00.19 21212732 B --- -- ----- wav 1.0000 MA_2015-07-18_S101.wav 5:46.05 61046204 B --- -- ----- wav 1.0000 MA_2015-07-18_S102.wav 7:04.17 74833628 B --- -- ----- wav 1.0000 MA_2015-07-18_S103.wav 10:06.59 107037212 B --- -- ----- wav 1.0000 MA_2015-07-18_S104.wav 12:26.42 131693228 B --- -- ----- wav 1.0000 MA_2015-07-18_S105.wav 12:19.15 130394924 B --- -- ----- wav 1.0000 MA_2015-07-18_S106.wav 5:05.32 53877308 B --- -- ----- wav 1.0000 MA_2015-07-18_S107.wav 5:50.10 61763564 B --- -- ----- wav 1.0000 MA_2015-07-18_S108.wav 16:40.37 176487068 B --- -- ----- wav 1.0000 MA_2015-07-18_S109.wav 77:19.11 818345868 B 1.0000 (9 files) App\Http\Controllers\Api\FileDownloadController::download(): Return value must be of type string, none returned