Highlight the MP3s you want to compress in your iTunes library. Change the 'Setting' menu to a lower bitrate and click 'OK'. Set the 'Import Using' menu to 'MP3 Encoder'. Click the 'Import Settings' button in the 'General' tab. Go to the 'iTunes' menu at the top of the screen and select 'Preferences.' All you need to do is to follow the steps given below. With iTunes, you can change the bitrate of your MP3 file to a lower level.
The higher the bitrate of an MP3 file, the higher the sound quality, and the greater the amount of space it takes up on a hard disk. The bitrate is a measure of how much data is transmitted in a second. To compress an MP3, you have to convert it to a lower bitrate.
When it comes to editing audio files on Mac, the first thing that comes into people's minds is probably iTunes. You will find the file you saved is smaller than the original one, with only a little quality loss. Step 4. Click the 'Export' button to save the file and customize the size of the MP3 file. You can also simply drag it to the appointed place. Step 3. Right-click the file and click the 'Add to Project' button to put it on the timeline. Step 2. Click the 'Import' button to import the MP3 file you want to compress. Launch EaseUS Video Editor and choose an aspect ratio.