Missing Audio when Using MediaCapture to Record an Audio File

Question

When I use MediaCapture to record an audio file, save it to Azure Blob Storage, and then download it to play it back invariably the first 5 to 6 seconds of the recording are blank. Is there some fix to this? The code I'm using is the standard, as shown below.
var settings = new MediaCaptureInitializationSettings();
                settings.StreamingCaptureMode = StreamingCaptureMode.Audio;
                settings.AudioProcessing = Windows.Media.AudioProcessing.Default;
                _mediaCapture = new MediaCapture();
                await _mediaCapture.InitializeAsync(settings);
                _mediaCapture.RecordLimitationExceeded += new Windows.Media.Capture.RecordLimitationExceededEventHandler(RecordLimitationExceeded);
                _mediaCapture.Failed += new Windows.Media.Capture.MediaCaptureFailedEventHandler(Failed);
                var recordProfile = MediaEncodingProfile.CreateM4a(AudioEncodingQuality.Auto);
                await _mediaCapture.StartRecordToStorageFileAsync(recordProfile, AudioStorageFile);

Answer 1

Hi IMOsiris,
Does the record file lost the first 5 seconds when complete recording in windows phone? We need avoid the confounding factors with Azure. Please test it.
If lost, we can use the code sample from MSDN code gallery to test whether the problem is persists. Post the result here and I will check if this is a known issue.
https://code.msdn.microsoft.com/windowsapps/media-capture-sample-adf87622.
If not, that means there is something incorrect when downloading file from Azure. You need to post on Azure forum to report this issue.
Feel free to let me know if you have any concerns.
Regards,
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