In the past, if you need to add multiple audio files, such as background music, sound effects and recorded audio to one video, and play all of them simultaneously. Either you have to pay for a large amount to purchase a professional video editing program and spend much time learning the user manual. Or you can purchase an easy video editing program to add one audio file at a time, export the video, add the next piece of audio to the program repeatedly. In nowadays, you can purchase an easy and trendy program called Wondershare Filmora for Mac(Originally Wondershare Video Editor for Mac), which will save you much time on reading the user manual and meanwhile save you much money to buy a professional complicated program. It is a good way to kill two birds with one stone.
You could follow below instructions to add multiple music files to the video and play them simultaneously.
Please press “+” to import the video files and all the audio files (music file, recorded audio and sound effect).
Then drag and drop the video to the video track. Meanwhile open the Track Manager to add the music track. This program supports 3 music tracks totally. So you could add the tracks accordingly.
Drag and drop the music file, recorded audio and sound effect to the music track 1, 2, 3 respectively.
Lastly to make them synchronized with the video file. You could drag the edge of the audio files to change the duration directly. Or you could freely move either of the audio files to anywhere you need.
Tips: If you need to record an audio, you could record an audio directly by this program. Then you do not need to do it by another program. The recorded audio will be located in the Media Library and the audio track meanwhile.