![]() For batch processing (normalize volume across multiple files), normalize-audio -b *.mp3 or specify individual filenames instead of using wildcards. There is a good manpage man normalize-audio to explore the options but the commands defaults appear to work well. This is a build maintained upstream by Debian so it should be in anything LTS or newer and is built with mp3 compatibility (tested). It's in the package repos as normalize-audio, sudo apt-get install normalize-audio. Can do batch processing and doesn't require resampling to intermediate formats. I would use this project Normalize, it's a command-line tool for normalizing audio files. MP3-support is added to Sox with libsox-fmt-all: sudo apt install sox libsox-fmt-all Processed files will be saved in a new subdirectory "cleaned" in the original's path.įrom version > 14.3 we can use the sox filter -norm for normalizing audio on the command line or for batch processing: sox -norm infile outfile Several files can be selected from the file chooser that opens. Select the Chain we have just created and load all files you need with "Apply to files.". When done leave this window with OK to open "File -> Apply Chain.". Important: we always need to also add the effect "Export MP3" (or any other export format) for saving the resulting conversion to disk. Then choose the effect and it's parameters to insert to the chain (here shown for default values and the Normalize effect). In the now opening window press the Add button on the bottom left to insert a new chain (give it a sensible name): This is done with "File -> Edit Chains.". To do so we first have to define a "Chain" containing the effects we want to apply. With Audacity we can easily batch process files to apply conversions or effects to many files in a list. After that, you need to run sudo apt-get -f install to correct some dependencies issues. deb file for 14.04 (the latest) from here. To install python-rgain from the terminal, run the command sudo apt-get install python-rgainĪlternatively, get the. Also, it allows you to view existing Replay Gain information in any of those file types). Note: That package was removed on purpose on ubuntu 15.04.ĭebian proposes the python-rgain package as replacement (The advantage is that 'replaygain' supports several file formats, namely Ogg Vorbis, Flac, WavPack and MP3. There is no quality lost in the change because the program adjusts the mp3 file directly, without decoding and re-encoding. Instead, it does some statistical analysis to determine how loud the file actually sounds to the human ear. X-Wave MP3 Cutter Joiner is a fast and useful tool that allows. Mp3gain does not just do peak normalization, as many normalizers do. X-wave mp3 cutter joiner is a fast and useful tool that allows you to split, cut, trim or join mp3 and wav files. Take a look mp3gain which for me is even better than normalize-audio mp3gain -r *.mp3Īnother useful version could be the -c which prevent to ask if you want to do the changes for many files: mp3gain -c -r *.mp3
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