How to Compress MP3 Files on a Mac & Windows [4 Best Ways]
List of the best MP3 file compressors for a Mac & Windows
Way #1 – How to reduce file size of MP3 with the Movavi converter
Step 1. Add an audio file to the MP3 file size reducer
Click the Add Media button and then Add audio in the upper-left corner of the program interface. Choose the audio you want to convert and click Open. You can also add your files to the MP3 compressor using drag-and-drop.
Step 2. Choose the format
In the lower part of the interface, locate the Audio tab, open the MP3 group and choose the preset that best suits your needs. You can choose from various bitrates, but note that the higher the bitrate, the better the quality and the bigger the file size.
Step 3. Define the compression rate (optional)
When you select a preset, the estimated output file size will appear in the file list. If the size works for you, then go right to Step 4. If you want, you can adjust the size manually. To do this, click Compress file. This will open a new dialog box. Move the Quality slider to the desired value. You can click the Convert sample button and listen to a small fragment of your converted audio to check the quality.
Step 4. Start the MP3 compression
First, decide where the converted files will be stored. Click the Save to button at the bottom of the program window and specify the appropriate directory on your computer. You can also stay with the default Movavi Library folder.
Once everything is ready, click the Convert button to start the conversion. The processing will take a little while and, once it’s done, the target folder containing the compressed MP3 files will open automatically.
Way #2 – How to compress MP3 in Audacity
Way #3 – How to reduce MP3 file size in iTunes
Way #4 – How to reduce MP3 file size online for free with MP3smaller
Summary: How to choose the best MP3 compressor
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