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--- selfhost:audionormalize [2024/02/27 14:20] – [Audio Normalization] willy
+++ selfhost:audionormalize [2025/03/19 14:07] (current) – [Audio Normalization] willy
@@ Line 1: / Line 1: @@
+====== K) Audio Normalization ======
-====== Audio Normalization ======
 It may happen that you have downloaded different episodes of the same serie from different sources for various reasons and that the audio levels are not consistent.
@@ Line 8: / Line 7: @@
 The tool is [[https://pypi.org/project/ffmpeg-normalize/|ffmpeg normalize]] a python script capable of leveraging ffmpeg filters capability.
-TBD
+===== Installation =====
+Create a dedicated user, make it part of the **media** group so that it can access your media library:
+<code>
+ useradd -d /data/daemons/ffmpeg-normalize -m ffmpeg-normalize -g media
+</code>
+Now, set **umask 0002** in the //.bashrc// of the user
+<file - .bashrc>
+umask 0002
+export PATH=/data/daemons/ffmpeg-normalize/.local/bin:$PATH
+</file>
+so that any created files are accessible by the //media// groups, and also you add the bin path for the installation later on.
+enable PIP in gentoo for your user ([[gentoo:pip|here]]), put the following file under **/data/daemons/ffmpeg-normalize/.confg/pip/pip.conf**:
+<file - pip.conf>
+[global]
+break-system-packages = true
+user = true
+</file>
+Then you can install the tool:
+<code>
+su - ffmpeg-normalize
+pip install ffmpeg-normalize
+</code>
+==== Usage ====
+there! ready to go:
+<code>
+cd /data/Media/<your folder>
+ffmpeg-normalize *.mkv -c:a aac
+</code>
+check [[https://pypi.org/project/ffmpeg-normalize/#detailed-options|here]] and [[https://github.com/slhck/ffmpeg-normalize/wiki/examples|here]] for more information and examples.
+this will write all the normalized videos to a subfolder called **normalized** now check them carefully before replacing originals!

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