Free Flash Drivers

Today i was recording a conference using audio recoder of an Alcatel One touch pop C7 with stock Kitkat Rom. The recorder app is the default one too.

Thing is, when i laid the phone on the table, it restarted and didnt save the audio file. Checking the files with a file explorer i notice that i have a m4a.tmp file related to that recording and it has 26MB. ( Since the recording time was not very long, i believe that all audio is there). :confused:

I read some posts here at xda and seached along the internet but no solution for this audio file

Can someone help me? It has to be possible to convert this file to be readable through some app or program at PC.

Thanks in advance :(