R128GAIN: An EBU R128 compliant loudness scanner Options

[westis]

How can I use this tool to normalize mpeg-2 and h.264 files?

[pbelkner]

How can I use this tool to normalize mpeg-2 and h.264 files?

You may consider re-wrapping them into a MKV container by choosing the MKV format.

[westis]

How can I use this tool to normalize mpeg-2 and h.264 files?

You may consider re-wrapping them into a MKV container by choosing the MKV format.

Thanks for your reply. I need the final file in H.264/AVC/MPEG-4 Part 10, since this is for TV broadcasting. I tried separating audio and video, to normalize the audio and then merge audio and video together. But the audio doesn't change. I have downloaded the shared autobuild of ffmpeg and replaced the dll's in the r128gain-tools folder.

The script that I use is one that Charalampos Tsimpouris helped me adapt from his script at http://1024.gr/blog/normalize-audio-movies...and-sox-windows. It looks like this:

CODE

echo off
cls
echo Script by http://1024.gr

cd /d %~dp0

echo Extracting audio to "%~1_clean.wav"..
r128gain-1.0-beta-2\r128gain-tools\ffmpeg.exe -i "%~1" -ac 2 -y "%~1_clean.wav"

echo Getting max amplitude and normalizing to "%~1_clean.wav"..
r128gain-1.0-beta-2\r128gain.exe --in-place "%~1_clean.wav"

echo Extracting video to "%~1_clean.avi"..
r128gain-1.0-beta-2\r128gain-tools\ffmpeg.exe -i "%~1" -map 0:0 -vcodec copy -y "%~1_clean.avi"

echo Creating new video file into "%~1_new.avi"..
r128gain-1.0-beta-2\r128gain-tools\ffmpeg.exe -i "%~1_clean.avi" -i "%~1_clean.wav" -vcodec copy "%~1_new.avi"

:clear
echo Cleaning..
del "%~1_clean.wav"
del "%~1_clean.avi"
pause

If I remove deleting the temporary files at the end, I compared the cleaned audio with the original audio and there is no change after running it through r128gain. Are we doing anything wrong in the script above?

In the above case we used it on avi files, but same result regardless of video format.

Cheers,
Daniel

[pbelkner]

I tried separating audio and video, to normalize the audio and then merge audio and video together.

In principle this should work.

But the audio doesn't change.

That's right because "r128gain" doesn't apply the gain. You may use the "--command" option in order to let SoX apply the gain:

CODE

r128gain "--command=sox %TRACK% %BN%-norm.wav gain %TGDB%" C:\Windows\Media\chord.wav -o .

[J.Fleming]

Crashes on 2 different computers for me after I click OK using default settings, no log files are written.

I'm guessing this needs SSE2... both computers I tried are PIII.

[pbelkner]

Version 1.0 RC1 released:

Download: http://sourceforge.net/projects/r128gain/files/r128gain/1.0/

What's new?

• SoX 14.4.1
• Improved stability
• Win64 build
  
  

• Crashes on 2 different computers for me after I click OK using default settings, no log files are written.
  
  I'm guessing this needs SSE2... both computers I tried are PIII.

  
  Final finish: Removed SSE.

[MrMod]

I noticed that the 14.4.1 windows build of SoX doesn't include FLAC or W64 support. I did some searching and found this posted on their project forum:

Unfortunately, there was a build problem in the 14.4.1 release leading to libflac and libsndfile being left out of the Windows binary.

I don't know what the fix is, just letting you know of this issue. In the meantime, I'll continue using SoX 14.4.0 with R128GAIN RC1 due to WAVs above 4GB in size not working properly (hence why I use FLAC).

[pbelkner]

I noticed that the 14.4.1 windows build of SoX doesn't include FLAC or W64 support.

This may be true for the official distribution, but it doesn't hold for the build coming with R128GAIN (which is crippled in other ways).

I did some searching and found this posted on their project forum:

Unfortunately, there was a build problem in the 14.4.1 release leading to libflac and libsndfile being left out of the Windows binary.

Meanwhile there are "sox-14.4.1a-win32.*" builds available.

[MrMod]

Thank you for adding FLAC support to the RC2 build. Works great.

[BFG]

I decided to give R128Gain (latest RC2 build) a try last night after reading about it here and hearing good things about it. At first, I couldn't get it to work on my MP3s, but as directed I updated FFmpeg and then it was able to do so. However, the R128Gain-modified MP3s seem to be missing all the ID3 and other metatags. Is there any simple way to tell R128Gain to simply pass through all tags other than the original ReplayGain one?

This post has been edited by BFG: May 22 2013, 16:14

[pbelkner]

I decided to give R128Gain (latest RC2 build) a try last night after reading about it here and hearing good things about it. At first, I couldn't get it to work on my MP3s, but as directed I updated FFmpeg and then it was able to do so. However, the R128Gain-modified MP3s seem to be missing all the ID3 and other metatags. Is there any simple way to tell R128Gain to simply pass through all tags other than the original ReplayGain one?

Unfortunately I'm not able to reproduce this. The result should be the same as in

CODE

ffmpeg -i "in.mp3" -c copy -y "out.mp3"

You may list the meta data seen by FFmpeg by means of

CODE

ffmpeg -i "in.mp3"

or

CODE

ffmpeg -i "out.mp3"