MediaComposition.Add of a BackgroundAudioTrack - can I fully preserve its quality?

[jtorjo]

I have this code:

var composition = new MediaComposition();
composition.Clips.Add(clip);

var mp3 = await this.music_file();
if (mp3 != "") {
	var music_file = await StorageFile.GetFileFromPathAsync(mp3);
	var music = await BackgroundAudioTrack.CreateFromFileAsync(music_file);
	music.TrimTimeFromStart = TimeSpan.Zero;
	music.TrimTimeFromEnd = TimeSpan.Zero;
	composition.BackgroundAudioTracks.Add(music);
}

The problem is that in the final .mp4, quite a bit of the audio quality is lost. My .mp3 contains a lot of sound effects very close to each other. My mp3 sounds perfect, but when added to the video, the final video is quite worse in audio quality.

Is there a way to fully preserve the audio quality of the original audio?

[btueffers]

Hi @jtorjo, this topic would be more appropriate for the Microsoft Q&A forum since those APIs are in the realm of Windows Platform APIs