![]() ![]() In Shell, to do any of these, either we call external executables, or we have to reinvent wheels with these extremely rudimentary and arcane syntaxes. Sox will infer the type of a file from its extension. And they take care of edge cases, and they're reliable. This command tells sox to copy the file foo.aiff, changing its format from aiff to wav. adjusts the volume of WAV, MP3 and OGG files to a standard volume level. In python, we have nice libraries like os.path or pathlib, which offers a whole bunch of tools to extract filename, extension, basename, path segments, split or join paths, to get absolute or normalized paths, to determine relations between paths, to do everything without much brain. Instructions on how to install normalize-audio on Ubuntu using command-line. Personally, I cannot understand why Shell, a language often used for manipulating files, doesn't offer basic functions to deal with paths. A lightweight library and command-line tool that you can use to apply a. Normpath "////a/./lot/././/mess////./here/././" You can use the appropriate command below to install mp3wrap, ffmpeg, and normalize-audio with your system’s package manager. Improve the quality of your MP3, FLAC and WAV audio files with this easy to use. Normpath "relative/path/with trailing slashs////" ![]() for each file - so there will be only ONE file on the commandline given to normalize. # Give it path as argument and it will convert them to clean absolute paths I have been looking for a way to normalize my mp3 collection. It does not resolve symlinks, so it is basically the same as realpath -sm. You could use this command: ffmpeg -i input.wav -vn -ar 44100 -ac 2 -b:a 192k output.mp3 Explanation of the used arguments in this example: -i - input file -vn - Disable video, to make sure no video (including album cover image) is included if the source would be a video file -ar - Set the audio sampling frequency. mp3 or specify individual filenames instead of using wildcards. For batch processing (normalize volume across multiple files), normalize-audio -b. I made a builtin-only function to handle this with a focus on highest possible performance (for fun). There is a good manpage man normalize-audio to explore the options but the commands defaults appear to work well. ![]()
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