How to remove original audio from the video file ?

[batmanrising]

Hi, currently I'm working on a hobby project.

I extracted small clips from a video and then concatenate them to create a new video file. Can we remove the audio from the original video file and add/merge any new audio/song file ?

[Zulko]

Yes, with set_audio:

import moviepy.editor as mpe

# ... create some concatenated clip
background_music = mpe.AudioFileClip("some_file.mp3")
new_clip = my_original_clip.set_audio(background_music)
new_clip.write_videofile("final_cut.mp4")

Audio clips could also be composed so you could add music on top of your video's sounds:

mixed_audio = mpe.CompositeAudioClip([background_music, my_original_clip.audio])
new_clip = my_original_clip.set_audio(mixed_audio)

[batmanrising]

Hi, thanks for replying. I found it on your documentations page, but I didn't find anything related to masking or removing the original sound/audio from the video.

what I'm doing is, extracting few clips from videos and then concatenating them to make a new video, but as the concatenated video has clips, the sound/audio is not uniform, so now I want to remove that sound/audio from concatenated video and superimposing a new music.

[Zulko]

I don't understand, did you try the code I give in my answer and did it work ?
You just have to apply this code to your final clip (the concatenated clip).

[batmanrising]

Thanks a lot, it worked.
I tried this code just to check if it's working or not.

from moviepy.editor import VideoFileClip, AudioFileClip
import moviepy.editor as mpe
	
videoclip = VideoFileClip("testVideo.mp4")
background_music = mpe.AudioFileClip("testAudio.mp3")
new_clip = videoclip.set_audio(background_music)
new_clip.write_videofile("final_cut.mp4")

And I guess, I can do extra effects on audio using audio.fx (moviepy documentation)

[batmanrising]

Now, in the previous code, I was trying to add some audio effects. But I'm getting an error.

from moviepy.editor import VideoFileClip, AudioFileClip, concatenate_videoclips
import moviepy.editor as mpe
import moviepy.audio.fx.all as afx

videoClip = VideoFileClip("testVideo.mp4")
audioClip = mpe.AudioFileClip("testAudio.mp3")
newAudio = (audioClip.afx( vfx.volumex, 0.5).afx( vfx.audio_fadein, 3.0).afx( vfx.audio_fadeout, 3.0))
new_clip = videoclip.set_audio(newAudio)
new_clip.write_videofile("final_cut.mp4")

And the error is

Traceback (most recent call last):
File "tempVidAud1.py", line 9, in
newAudio = (audioClip.afx( vfx.volumex, 0.5).afx( vfx.audio_fadein, 3.0).afx( vfx.audio_fadeout, 3.0))
AttributeError: AudioFileClip instance has no attribute 'afx'