Ubuntu – How to compress an mp3 file


I used to download a program in windows that used lame to compress audio of mp3 files and made them smaller in size but I don't know how to do this in Ubuntu.

Does anybody know anything about this?

Please remember that I have just installed ubuntu so I practically don't know anything.

Best Answer

Terminal way:

lame is in Universe repository. So you have to first enable universe repository.

  • See this question → How do I enable the "Universe" repository?

  • Then install lame by the below using commands in a terminal. To open a terminal press Ctrl + Alt + T.

    sudo apt-get update
    sudo apt-get install lame

Then navigate to the directory by using cd command to the folder you have the file to convert it. I assume your file is in Desktop directory and it's name is 001.mp3. We also assume your input file is of 128kbps and you want an output file of 32kbps. So, use these commands to compress it

cd ~/Desktop
lame -b 32  001.mp3 001-32.mp3

You can use any name for the output file other than the same name as input file which is in this case 001.mp3.

Note that, the conversion will use fixed bitrate as opposed to variable or average bitrate.

See the lame manual page for more help.

Graphical way:

If you prefer graphical tools to do this, I suggest you a small and simple tool to do so. It is soundconverter.

  1. Install it with this link → soundconverter Install soundconverter or using this command in terminal

    sudo apt-get install soundconverter
  2. Open it by searching in Dash with term "soundconverter". To bring Dash, Press Super key which is also known as Windows key.

  3. When it opened, Press the **Add File* button in it's toolbar, and select the file you want to convert.

  4. Then go to EditPreference from menu. In Type of result select mp3 and select a quality.

    • Very low = 64 kbps
    • Low = 96 kbps
    • Normal = 128 kbps
    • High = 192 kbps
    • Very high = 256 kbps.

    I think, you should select "Very low" or "Low" depending on your needs. Then click close.

  5. Click Convert button in toolbar to convert it.

That's it. Your file will be converted and stored in the same directory as the input file. You can also change the directory for output folder in Preference Window.

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