Changes between Initial Version and Version 1 of How to change audio volume up-down with FFmpeg


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Timestamp:
Jul 4, 2012, 4:43:19 AM (4 years ago)
Author:
burek
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  • How to change audio volume up-down with FFmpeg

    v1 v1  
     1To turn the audio volume up or down, you may use FFmpeg's Audio Filter named [http://ffmpeg.org/ffmpeg.html#volume volume], like in the following example. 
     2If we want our volume to be half of the input volume: 
     3{{{ 
     4ffmpeg -i input.wav -af 'volume=0.5' output.wav 
     5}}} 
     6 
     7In older versions of FFmpeg, the option "-af" wasn't implemented, so we had to use this: 
     8{{{ 
     9ffmpeg -f lavfi -i "amovie=input.wav,volume=0.5" output.wav 
     10}}} 
     11 
     12More info here: http://ffmpeg.org/trac/ffmpeg/ticket/720