low sound help

[loa909]

Hi all i have a avi movie, but the sound is very low, what programs will i need to extract the sound enhance it louder then replace back to the avi

[pandy]

ffmpeg?

provide more details about audio coding type

[loa909]

ffmpeg?

provide more details about audio coding type

hi thanks for replying but Im a bit green at all this, how do i find out the audio coding type

[pandy]

Mediainfo ?
I rather prefer ffprobe with bellow command line:

@ffprobe -i %1 -show_format -show_streams -pretty -print_format json -of json > %~n1.txt

[loa909]

Mediainfo ?
I rather prefer ffprobe with bellow command line:

@ffprobe -i %1 -show_format -show_streams -pretty -print_format json -of json > %~n1.txt

I dont have a clue about commands etc

this is the movie video and audio

I just need a very simple program or programs to do this so video is much louder

[hech54]

You can usually just drag the video file into an audio editor(I use GoldWave myself but Audacity should do the same) and it will open the audio. Increase the volume and save out the audio to a new WAV file.
Then I open the original video file in AviDemux (I still use an OLD version 2.4) and replace the old audio with the new audio. You can use the COPY option for the video and it will not change the video properties at all. You will have a WAV file to replace the old audio so you will probably want to allow AviDemux to recompress the audio to MP3......or you can make it AC3 again....no biggie.

https://youtu.be/yfExLuAvk10

[pandy]

Download ffmpeg , unpack archive to folder, find ffmpeg.exe.

@ffmpeg -i %1 -c:v copy -c:a ac3 -b:a 192k -af "aformat=sample_fmts=fltp,highpass=f=5,dynaudnorm=m=100.0:f=500:p=0.5:b=0:s=5.0,aresample=resampler=soxr:osr=48000:dither_method=0" "%~n1_dyn.avi"

Copy above to notepad and save with name you like and extension bat or cmd to place where ffmpeg.exe is located.
Drag and drop your avi file on icon of above script (named as you like and extension bat or cmd)
After some time new avi will be created - check if everything is fine with audio.
Provide feedback.

[loa909]

You can usually just drag the video file into an audio editor(I use GoldWave myself but Audacity should do the same) and it will open the audio. Increase the volume and save out the audio to a new WAV file.
Then I open the original video file in AviDemux (I still use an OLD version 2.4) and replace the old audio with the new audio. You can use the COPY option for the video and it will not change the video properties at all. You will have a WAV file to replace the old audio so you will probably want to allow AviDemux to recompress the audio to MP3......or you can make it AC3 again....no biggie.

https://youtu.be/yfExLuAvk10

ok thanks seems easy enough to do hopefully. dont suppose you have a copy of your AviDemux or will this copy be ok still as dont want to mess up movie etc.

so in either gold wave or audacity i just increase the volume on it to a nice level and save as wav yeah

[hech54]

Audacity is free....I use Goldwave because it's easier for me to understand. I had a Roxio program years ago that resembled Goldwave a lot.
All of the versions of AviDemux work the same. COPY is COPY on all of them. They have removed some filters over the years but you won't be using those so it doesn't matter. You may want to get the same version as shown in the YouTube video to make sure there is no confusion. That one does NOT look like mine.

Don't forget that you will choose AVI as an output....not MP4 as shown in the video.....AND you may need to add .avi to your new file's name. My version of AviDemux does not place the file type automatically.

[loa909]

Download ffmpeg , unpack archive to folder, find ffmpeg.exe.

@ffmpeg -i %1 -c:v copy -c:a ac3 -b:a 192k -af "aformat=sample_fmts=fltp,highpass=f=5,dynaudnorm=m=100.0:f=500:p=0.5:b=0:s=5.0,aresample=resampler=soxr:osr=48000:dither_method=0" "%~n1_dyn.avi"

Copy above to notepad and save with name you like and extension bat or cmd to place where ffmpeg.exe is located.
Drag and drop your avi file on icon of above script (named as you like and extension bat or cmd)
After some time new avi will be created - check if everything is fine with audio.
Provide feedback.

Hi I have done as you said, it seems to be sorting the audio but its now renamed movie to >>>> moviename_dyn.avi is this correct

so do I rename movie back after its finished

wow its soon increased the audio real fast much louder now thanks so much. so is this program only for avi movies or can it be used on other formats

[loa909]

Download ffmpeg , unpack archive to folder, find ffmpeg.exe.

@ffmpeg -i %1 -c:v copy -c:a ac3 -b:a 192k -af "aformat=sample_fmts=fltp,highpass=f=5,dynaudnorm=m=100.0:f=500:p=0.5:b=0:s=5.0,aresample=resampler=soxr:osr=48000:dither_method=0" "%~n1_dyn.avi"

Copy above to notepad and save with name you like and extension bat or cmd to place where ffmpeg.exe is located.
Drag and drop your avi file on icon of above script (named as you like and extension bat or cmd)
After some time new avi will be created - check if everything is fine with audio.
Provide feedback.

Hi I have done as you said, it seems to be sorting the audio but its now renamed movie to >>>> moviename_dyn.avi is this correct

so do I rename movie back after its finished

wow its soon increased the audio real fast much louder now thanks so much. so is this program only for avi movies or can it be used on other formats

hech54
Re: low sound help

You can usually just drag the video file into an audio editor(I use GoldWave myself but Audacity should do the same) and it will open the audio. Increase the volume and save out the audio to a new WAV file.
Then I open the original video file in AviDemux (I still use an OLD version 2.4) and replace the old audio with the new audio. You can use the COPY option for the video and it will not change the video properties at all. You will have a WAV file to replace the old audio so you will probably want to allow AviDemux to recompress the audio to MP3......or you can make it AC3 again....no biggie.

https://youtu.be/yfExLuAvk10

I will also try your method too hech54 many thanks also

[pandy]

Hi I have done as you said, it seems to be sorting the audio but its now renamed movie to >>>> moviename_dyn.avi is this correct

yes, this is intentionally - you will be able to distinguish between those two and decide if results are OK for you or not.

wow its soon increased the audio real fast much louder now thanks so much. so is this program only for avi movies or can it be used on other formats

As a principle it may work for all movies but due some subtle nuance in ffmpeg syntax + container capabilities it may give you suboptimal results or not work at all - some small modification may be required for example it may not work with h.264 files, it may not work with video compression not supported by avi etc.
If you find something that not work as you like or maybe there is some other problem just start new thread - for sure someone should help you.

for example this one will follow container type so it allow you to keep same container as source, as video is copied then only audio is modified and it use ac3 compression.

@ffmpeg -i %1 -c:v copy -c:a ac3 -b:a 192k -af "aformat=sample_fmts=fltp,highpass=f=5,dynaudnorm=m=100.0:f=500:p=0.5:b=0:s=5.0,aresample=resampler=soxr:osr=48000:dither_method=0" "%~n1_dyn%~x1"

[loa909]

is there more examples then like above, where did you find those scripts

[pandy]

is there more examples then like above, where did you find those scripts

https://www.ffmpeg.org/documentation.html
http://trac.ffmpeg.org/

lot of problems are common and usually they are already solved - if not then you need to dig a bit and made some tests...
and i have small library of my own problems already solved - it was easy to modify one of my own script to your needs.

[loa909]

is there more examples then like above, where did you find those scripts

https://www.ffmpeg.org/documentation.html
http://trac.ffmpeg.org/

lot of problems are common and usually they are already solved - if not then you need to dig a bit and made some tests...
and i have small library of my own problems already solved - it was easy to modify one of my own script to your needs.

Im afraid all this script stuff is way too complicated for me but will study them. thanks anyway

[hello_hello]

There's some batch files here: https://forum.videohelp.com/threads/255147-Mini-Guide-Normalizing-Audio-for-Multiple-AVI-files

[loa909]

There's some batch files here: https://forum.videohelp.com/threads/255147-Mini-Guide-Normalizing-Audio-for-Multiple-AVI-files

thanks for that but what do it mean in snapshot Normalized files end up here in that completed folder