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FFMPEG Command to Extract Audio From Video Without Re-Encoding in Terminal
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Jun 3, 2025
ffmpeg -i input-video.avi -vn -acodec copy output-audio.aac
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0:00
uh hello guys welcome to this video so
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in this video I will show you how to
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convert a video into uh how to extract
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audio from a video file without
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re-encoding the video inside FMPG so
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it's a very useful task here uh whenever
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you want to convert the video into a MP3
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audio file so it can be done in various
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ways it can be done without re-encoding
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or encoding as well encoding will take
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some time but uh if you don't want to do
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re-encoding it will be happen instantly
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so now we have this video file present
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right here
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1.MPP4 so just open your command line
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and just write this command fmpp i and
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then we need to provide the input file
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here 1.mpp4
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MP4 and then we just need to write
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-ashvn and uh for this we will be using
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a codec here audio codec which we simply
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say - a codec and then we simply
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copy so this copy is essentially doing
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it it is copying the codec uh coding
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settings we are not re-encoding the
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video so essentially first of all we are
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providing the video file 1.mpp4 mp4 and
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then -ashvn a codec copy and then we can
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give the output file name
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output.mpp3 so this is a very simple
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command you can see
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that it actually takes the video file
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and then we are simply copying the codec
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settings and just if I execute this
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command here you will see it is saying
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that exactly one MP3 audio stream is
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required so you can use all these
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extensions you can even use AAC as well
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you will
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see so now you can see instantly
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your audio file has been successfully
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created you can play this
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hereudio system
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so you can see that it has extracted all
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the audio from this video file and
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created this uh audio file without
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re-encoding so we you can see how fastly
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the command executed it doesn't take
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much time because we are not re-encoding
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the video so it actually happens
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instantly so that's the advantage of not
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re-encoding the video so this is
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actually the
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command just uh write this and you will
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be able to extract all the audio from
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the video files so thank you very much
2:55
for watching this video and also check
2:57
out my website freemediatools.com
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