Changes between Version 1 and Version 2 of AudioVolume


Ignore:
Timestamp:
Jan 25, 2018, 1:39:04 PM (11 months ago)
Author:
slhck
Comment:

update info on ffmpeg-normalize script

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  • AudioVolume

    v1 v2  
    3838... then calculate the required offset, and use the `volume` filter as shown above. 
    3939 
    40 To automate this process and run it on multiple files (including video), you can also use the [https://github.com/slhck/ffmpeg-normalize ffmpeg-normalize Python script] via `pip install ffmpeg-normalize`. For the supported options, see `ffmpeg-normalize -h`. 
    41  
    4240== Loudness Normalization == 
    4341 
     
    4846}}} 
    4947 
    50 This is recommended for most applications, as it will lead to a more uniform loudness level compared to simple peak-based normalization. 
     48This is recommended for most applications, as it will lead to a more uniform loudness level compared to simple peak-based normalization. However, it is recommended to run the normalization with two passes, extracting the measured values from the first run, then using the values in a second run with linear normalization enabled. See the loudnorm filter documentation for more. 
     49 
     50== Automatization with `ffmpeg-normalize` == 
     51 
     52To automate the normalization processes with ffmpeg without having to manually perform two passes, and run normalization on multiple files (including video), you can also use the [https://github.com/slhck/ffmpeg-normalize ffmpeg-normalize Python program] via `pip install ffmpeg-normalize`. 
     53 
     54The script defaults to EBU R128 normalization with two passes, but peak and RMS normalization are also supported. 
     55 
     56For details, run `ffmpeg-normalize -h` or see the README file.