elsha

I have recorded a video + audio. After recording, I have tried to watch the recorded file. I have found that video and audio recording worked perfectly but in the middle of recording the audio record didn't work and the video is recorded without any sounds. But I didn't changed anything and also didn't receive any message that audio record is stopped to work. It has been happened several times for me. Could you please kindly let me know how I can recover this recorded audio? and also Where is standing the problem so that audio record stopped to work? I will be really thankful to have a solution for this annoying problem. Thank you in advance!