My friend created a video mp4 but some how the volume to weak I turn volume to max but barely heard the sound how do I fix that problem? What software to use?
+ Reply to Thread
Results 1 to 4 of 4
-c:a libopus -vbr off -b:a 32k -ar 48000 -af dynaudnorm,aformat=channel_layouts=stereo
I'd re-encode the video with Videomass and the audio part dynadunorm which is dynamic normalization. It'll fix your too low or too high volume even in various parts throughout the video.
Load your mp4, wait until analysis is done, click main, click convert Audio Stream, click volume detection
[Attachment 65558 - Click to enlarge]
wait until volume detection is done, then click "Go to the encoder". The Volume db field shows the max possible db increase value.
[Attachment 65559 - Click to enlarge]
Click convert, wait until conversion has finished, then click multiplex.
[Attachment 65560 - Click to enlarge]
The new created audio stream (with increased volume) is shown in green. Deselect the original audiostream (in blue) and click multiplex.