Unfortunately, you can't make adjustments on the audio fade in/fade out with Windows Movie Maker since it is a very basic video editing application.
Other (purchased) video editing software provides that feature, but not Windows Movie Maker.
You can't do that on Windows Live Movie Maker, but you can extract the audio from a video in Windows Movie Maker v2.6 and save/publish it as an audio file.
You need to use an external audio editor for fixing audio before importing it into the program. Windows Movie Maker can't fix audio (only adjust volume levels/fades).
Use Windows Movie Maker
You need to right-click on the Music/Audio track for adjustment options.
Speeds faster than 1x does not support audio in Windows Movie Maker.
Unfortunately, you can't create Effects for the Audio/Music in Windows Movie Maker. You can adjust the audio volume levels, fades, muting, etc. But, there isn't much else you can do with it unless you've downloaded plug-ins/add-ons for audio manipulation.
You can't do that with audio on Windows Movie Maker. The application is very basic with limited features/functions. Masking is not a feature that is included.
No. There is only one audio track to work with in Windows Movie Maker. You can drag an audio backwards on the time-line to overlap the music... but it may not sound the way it would if it were on two different tracks. Perhaps you can try to use a streaming audio recorder to record audio on windows movie maker.
Unfortunately, you can't do that with Windows Live Movie Maker (2011). It is a stripped-down version of Windows Movie Maker with very basic features, and only one audio track to work with. Sorry.
First you have to mute the video's audio in Windows Movie Maker. Once the audio portion of the Video is muted, you can import and drop the desired audio you want to use into the Audio/Music track.
No narration feature in Windows Live Movie Maker. Sorry.
You do not have any other audio publishing options other than .wma if you are editing it in Windows Movie Maker. My suggestion is... edit the audio in Windows Movie Maker; publish/finish it in .wma format; then convert it to .mp3 using an Audio Conversion program.